_index.html

+++
title = "JSON Schema Standard Library"
description = "A standard library of all the foundational schemas you'll ever need so you never have to bother with JSON Schema again"
github = "sourcemeta/std"
price = "€2,110"

[[navigation]]
title = "Browse Schemas"
link = "https://schemas.sourcemeta.com/sourcemeta/std"

[[navigation]]
title = "Pricing"
link = "#pricing"

[[navigation]]
title = "FAQ"
link = "#faq"

[[navigation]]
title = "Open Source"
link = "#opensource"
+++

{{< blueprint color="white" class="border-top pt-4 pt-md-5 pb-5" >}}
  <div class="text-center mb-5">
    <h1 class="display-3 d-none d-lg-block fw-bold text-dark mb-4 mx-auto" style="max-width: 1200px;">
      Design OpenAPI Specs <br><span class="text-gradient-metal"><span id="typewriter" data-variants='["That Actually Validate Correctly","Your Docs Generator Will Love","That Actually Pass Industry Audits","That LLMs Will Actually Understand"]'>That Actually Validate Correctly</span><span id="cursor" class="fw-normal">_</span></span>
    </h1>
    <h1 class="display-6 d-lg-none fw-bold text-dark mb-4">
      Design OpenAPI Specs <br><span class="text-gradient-metal"><span id="typewriter-mobile">That Actually Validate Correctly</span><span id="cursor-mobile" class="fw-normal">_</span></span>
    </h1>

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    <p class="lead text-muted mb-4 mx-auto" style="max-width: 800px;">A growing collection of over +300 battle-tested schemas (ISO, IETF, IEC, W3C, etc) to power your next API spec, so you never have to bother with JSON Schema again</i></p>

    <div class="mt-4">
      <a class="btn btn-lg btn-primary me-2" href="#pricing" role="button">
        <i class="bi bi-infinity me-2"></i>Get Lifetime Access
      </a>

      <a class="btn btn-lg btn-light border" href="https://schemas.sourcemeta.com/sourcemeta/std" role="button">
        <i class="bi bi-box-arrow-up-right me-1"></i> Browse Schemas
      </a>
    </div>

    <a href="#pricing" class="text-decoration-none d-inline-block mt-5">
      <div class="p-3 border border-primary bg-light rounded hover-lift">
        <p class="mb-0 fw-semibold text-dark">
          Commercial library with <span class="fw-bold fst-italic">perpetual pricing</span>. Pay once, use forever. <span class="fw-light">No subscription hell</span>
        </p>
      </div>
    </a>

    <div class="mt-3">
      <small class="text-muted fw-light"><i class="bi bi-shield-check me-1"></i> Maintained by a member of the JSON Schema Technical Steering Committee</small>
    </div>
  </div>

  <div class="mt-5">
    <h3 class="h4 fw-bold text-center mb-2">What's Inside: Some Sample Schemas from the Library</h3>
    <p class="text-center text-muted mb-4">
      <small>Hint: Your OpenAPI specs in YAML format can directly reference these schemas in JSON format using <a href="https://www.learnjsonschema.com/2020-12/core/ref"><code>$ref</code></a></small>
    </p>

    <style>
      .schema-editor-window {
        border-radius: 12px;
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    </style>

    <div class="schema-editor-window">
      <!-- Window Controls -->
      <div class="d-flex align-items-center px-3 py-2" style="background: #2d2d2d;">
        <div class="d-flex gap-1 me-3">
          <div class="rounded-circle" style="width: 12px; height: 12px; background: #ff5f56;"></div>
          <div class="rounded-circle" style="width: 12px; height: 12px; background: #ffbd2e;"></div>
          <div class="rounded-circle" style="width: 12px; height: 12px; background: #27c93f;"></div>
        </div>
        <span class="small text-white-50" id="schema-filename">jsonrpc/v2.0/request.json</span>
      </div>

      <!-- Tabs -->
      <div class="d-flex" style="background: #1e1e1e;">
        <button class="schema-tab active" data-schema="jsonrpc">
          JSON-RPC Request <span class="tab-line-count" id="tab-jsonrpc"></span>
        </button>
        <button class="schema-tab" data-schema="currency">
          ISO Currency <span class="tab-line-count" id="tab-currency"></span>
        </button>
        <button class="schema-tab" data-schema="xbrl">
          XBRL Monetary <span class="tab-line-count" id="tab-xbrl"></span>
        </button>
        <button class="schema-tab" data-schema="uri">
          URI Reference <span class="tab-line-count" id="tab-uri"></span>
        </button>
        <a href="https://schemas.sourcemeta.com/sourcemeta/std" class="schema-tab browse-link" target="_blank" rel="noopener noreferrer">
          <i class="bi bi-box-arrow-up-right me-1"></i> Browse All 300+ Schemas
        </a>
      </div>

      <!-- Editor Content -->
      <div style="max-height: 600px; background: #1e1e1e; overflow-y: auto;">
        <div class="d-flex" style="font-size: 0.875rem; line-height: 1.6;">
          <pre class="m-0 p-3 line-numbers" id="line-numbers">1</pre>
          <pre class="m-0 p-3 flex-grow-1"><code id="schema-content" class="language-json text-white-50">Loading schema...</code></pre>
        </div>
      </div>

      <!-- Footer -->
      <div style="background: #252526; border-top: 1px solid #3c3c3c;">
        <div class="px-3 py-2" style="background: #2d2d30; border-bottom: 1px solid #3c3c3c;">
          <small class="text-white-50 text-uppercase" style="font-size: 0.7rem; letter-spacing: 0.5px;">
            <i class="bi bi-info-circle-fill text-info me-2"></i>About This Schema
          </small>
        </div>
        <div class="p-3" id="schema-description">
          <div class="d-flex align-items-start mb-2">
            <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
            <span class="small text-white-50">Implements the official JSON-RPC 2.0 specification for remote procedure calls</span>
          </div>
          <div class="d-flex align-items-start mb-2">
            <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
            <span class="small text-white-50">Validates request structure, method names, and parameter formats</span>
          </div>
          <div class="d-flex align-items-start">
            <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
            <span class="small text-white-50">Used by thousands of APIs for standardized RPC communication</span>
          </div>
        </div>
      </div>
    </div>

    <script>
      (function() {
        const schemas = {
          jsonrpc: {
            url: 'https://schemas.sourcemeta.com/sourcemeta/std/v0/jsonrpc/v2.0/request.json?bundle=1',
            filename: 'jsonrpc/v2.0/request.json',
            description: `
              <div class="d-flex align-items-start mb-2">
                <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
                <span class="small text-white-50">Implements the official JSON-RPC 2.0 specification for remote procedure calls</span>
              </div>
              <div class="d-flex align-items-start mb-2">
                <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
                <span class="small text-white-50">Validates request structure, method names, and parameter formats</span>
              </div>
              <div class="d-flex align-items-start">
                <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
                <span class="small text-white-50">Critical for JSON-RPC based APIs like MCP (Model Context Protocol)</span>
              </div>
            `,
            data: null
          },
          currency: {
            url: 'https://schemas.sourcemeta.com/sourcemeta/std/v0/iso/currency/2015/alpha-code.json?bundle=1',
            filename: 'iso/currency/2015/alpha-code.json',
            description: `
              <div class="d-flex align-items-start mb-2">
                <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
                <span class="small text-white-50">Based on ISO 4217 standard for currency codes</span>
              </div>
              <div class="d-flex align-items-start mb-2">
                <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
                <span class="small text-white-50">Covers currencies, funds, and precious metals like gold and silver</span>
              </div>
              <div class="d-flex align-items-start">
                <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
                <span class="small text-white-50">Essential for financial APIs and e-commerce platforms</span>
              </div>
            `,
            data: null
          },
          xbrl: {
            url: 'https://schemas.sourcemeta.com/sourcemeta/std/v0/xbrl/instance/2003/monetary-item-type.json?bundle=1',
            filename: 'xbrl/instance/2003/monetary-item-type.json',
            description: `
              <div class="d-flex align-items-start mb-2">
                <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
                <span class="small text-white-50">Implements the XBRL financial reporting standard</span>
              </div>
              <div class="d-flex align-items-start mb-2">
                <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
                <span class="small text-white-50">Commonly used for accountancy and financial disclosures</span>
              </div>
              <div class="d-flex align-items-start">
                <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
                <span class="small text-white-50">Widely adopted by regulatory bodies and financial authorities worldwide</span>
              </div>
            `,
            data: null
          },
          uri: {
            url: 'https://schemas.sourcemeta.com/sourcemeta/std/v0/ietf/uri/uri-reference.json?bundle=1',
            filename: 'ietf/uri/uri-reference.json',
            description: `
              <div class="d-flex align-items-start mb-2">
                <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
                <span class="small text-white-50">Implements IETF RFC 3986 for URI validation</span>
              </div>
              <div class="d-flex align-items-start mb-2">
                <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
                <span class="small text-white-50">Validates URLs, URNs, and all URI formats correctly</span>
              </div>
              <div class="d-flex align-items-start">
                <i class="bi bi-check-circle-fill text-success me-2" style="font-size: 0.85rem; margin-top: 2px;"></i>
                <span class="small text-white-50">Fully supports both relative and absolute URIs</span>
              </div>
            `,
            data: null
          }
        };

        const contentElement = document.getElementById('schema-content');
        const lineNumbersElement = document.getElementById('line-numbers');
        const filenameElement = document.getElementById('schema-filename');
        const descriptionElement = document.getElementById('schema-description');
        const tabs = document.querySelectorAll('.schema-tab[data-schema]');

        function syntaxHighlight(json) {
          json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
          return json.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, function (match) {
            let cls = 'text-warning';
            if (/^"/.test(match)) {
              if (/:$/.test(match)) {
                cls = 'text-info';
              } else {
                cls = 'text-success';
              }
            } else if (/true|false/.test(match)) {
              cls = 'text-primary';
            } else if (/null/.test(match)) {
              cls = 'text-secondary';
            }
            return '<span class="' + cls + '">' + match + '</span>';
          });
        }

        function updateLineNumbers(text) {
          const lineCount = text.split('\n').length;
          lineNumbersElement.textContent = Array.from({length: lineCount}, (_, i) => i + 1).join('\n');
        }

        function updateTabLineCount(schemaKey, lineCount) {
          const tabElement = document.getElementById('tab-' + schemaKey);
          if (tabElement) {
            tabElement.textContent = '(' + lineCount + ' lines)';
          }
        }

        function loadSchema(schemaKey) {
          const schema = schemas[schemaKey];

          if (schema.data) {
            contentElement.innerHTML = schema.data.highlighted;
            updateLineNumbers(schema.data.formatted);
            filenameElement.textContent = schema.filename;
            descriptionElement.innerHTML = schema.description;
          } else {
            contentElement.textContent = 'Loading schema...';
            lineNumbersElement.textContent = '1';
            fetch(schema.url)
              .then(response => response.json())
              .then(data => {
                const formatted = JSON.stringify(data, null, 2);
                const highlighted = syntaxHighlight(formatted);
                const lineCount = formatted.split('\n').length;
                schema.data = { formatted, highlighted, lineCount };
                contentElement.innerHTML = highlighted;
                updateLineNumbers(formatted);
                updateTabLineCount(schemaKey, lineCount);
                filenameElement.textContent = schema.filename;
                descriptionElement.innerHTML = schema.description;
              })
              .catch(error => {
                contentElement.textContent = 'Error loading schema: ' + error.message;
                contentElement.classList.add('text-danger');
                lineNumbersElement.textContent = '1';
              });
          }
        }

        tabs.forEach(tab => {
          tab.addEventListener('click', function() {
            const schemaKey = this.getAttribute('data-schema');

            tabs.forEach(t => t.classList.remove('active'));
            this.classList.add('active');

            loadSchema(schemaKey);
          });
        });

        // Preload all schemas
        Object.keys(schemas).forEach(schemaKey => {
          const schema = schemas[schemaKey];
          fetch(schema.url)
            .then(response => response.json())
            .then(data => {
              const formatted = JSON.stringify(data, null, 2);
              const highlighted = syntaxHighlight(formatted);
              const lineCount = formatted.split('\n').length;
              schema.data = { formatted, highlighted, lineCount };
              updateTabLineCount(schemaKey, lineCount);

              // If this is the first schema, display it
              if (schemaKey === 'jsonrpc') {
                contentElement.innerHTML = highlighted;
                updateLineNumbers(formatted);
                filenameElement.textContent = schema.filename;
                descriptionElement.innerHTML = schema.description;
              }
            })
            .catch(error => {
              console.error('Error preloading schema ' + schemaKey + ':', error);
            });
        });
      })();
    </script>
  </div>
{{< /blueprint >}}

<section class="bg-light-subtle border-top border-bottom py-5 shadow-sm">
  <div class="container">
    <div class="row align-items-center">
      <div class="col-12 col-lg-6 mb-4 mb-lg-0">
        <h2 class="h3 fw-bold mb-3">Built on the foundations of our digital world</h2>
        <p class="lead text-muted mb-0">Every schema in this library represents careful implementation of the standards that power the modern internet (many behind expensive paywalls), ensuring your APIs are built on proven, battle-tested, and compliant foundations.</p>
      </div>
      <div class="col-12 col-lg-6 mt-4 mt-lg-0">
        <div class="d-flex flex-column justify-content-center align-items-center gap-4 h-100">
          <div class="d-flex flex-wrap justify-content-center align-items-center gap-4 gap-lg-5">
            <a href="https://www.ietf.org" target="_blank" rel="noopener noreferrer">
              <img src="/products/std/ietf.svg" alt="IETF" height="75" class="opacity-75">
            </a>
            <a href="https://www.iso.org" target="_blank" rel="noopener noreferrer">
              <img src="/products/std/iso.svg" alt="ISO" height="75" class="opacity-75">
            </a>
            <a href="https://www.ieee.org" target="_blank" rel="noopener noreferrer">
              <img src="/products/std/ieee.svg" alt="IEEE" height="60" class="opacity-75">
            </a>
          </div>
          <div class="d-flex flex-wrap justify-content-center align-items-center gap-4 gap-lg-5">
            <a href="https://www.iec.ch" target="_blank" rel="noopener noreferrer">
              <img src="/products/std/iec.svg" alt="IEC" height="75" class="opacity-75">
            </a>
            <a href="https://www.w3.org" target="_blank" rel="noopener noreferrer">
              <img src="/products/std/w3c.svg" alt="W3C" height="75" class="opacity-75">
            </a>
            <a href="https://www.xbrl.org" target="_blank" rel="noopener noreferrer">
              <img src="/products/std/xbrl.svg" alt="XBRL" height="75" class="opacity-75">
            </a>
          </div>
        </div>
      </div>
    </div>
  </div>
</section>

<section class="py-5 bg-light bg-gradient">
  <div class="container">
    <div class="text-center mb-5 mx-auto" style="max-width: 900px;">
      <h2 class="display-6 fw-bold mb-3">Most API companies waste years reinventing the wheel, <span class="fw-bolder">and still doing it wrong</span></h2>
      <p class="h4 text-muted fw-light">Your company is smarter than that</p>
    </div>

    <div class="row g-5 mb-3">
      <div class="col-12 col-xl-4">
        {{< box header="Correctness" icon="bi-arrow-repeat" title="Your schemas are broken and you don't know it" >}}
          We worked with dozens of API companies, and less than 4% of developers unit tests their OpenAPI schemas. Unsurprisingly, they had subtle schema bugs that you can avoid.
        {{< /box >}}
      </div>
      <div class="col-12 col-xl-4">
        {{< box header="Compliance" icon="bi-toggles" title="All of those standards exist for a reason" >}}
          Take country codes. Too strict? You reject less-known countries. Too loose? You introduce compliance issues, and accept SQL injection attacks and other vulnerabilities. We take the risk out.
        {{< /box >}}
      </div>
      <div class="col-12 col-xl-4">
        {{< box header="Productivity" icon="bi-hourglass-split" title="Writing schemas yourself is expensive" >}}
          Just the <a href="https://www.iso.org/iso-8601-date-and-time-format.html">ISO 8601</a> date and time specification is 50+ pages long and costs around $500 USD. We implemented it in 115 variants covered by 6000 edge cases. And that's a single data type.
        {{< /box >}}
      </div>
    </div>
  </div>
</section>

<section class="py-5 border-top">
  <div class="container">
    <div class="text-center mb-5">
      <h2 class="display-6 fw-bold mb-3">Use the schemas your way</h2>
      <p class="lead text-muted">We don't lock you in. Choose the method that works best for your workflow</p>
    </div>

    <div class="row g-5">
      <div class="col-12 col-md-6 col-lg-4">
        <div class="text-center">
          <div class="mb-3">
            <img src="from-https.png" alt="HTTPS URLs" class="img-fluid rounded shadow-sm border border-dark">
          </div>
          <h4 class="h5 fw-bold mb-2">HTTPS URLs</h4>
          <p class="text-muted small mb-0">Directly reference schemas from <a href="https://schemas.sourcemeta.com/sourcemeta/std">schemas.sourcemeta.com</a> using the <a href="https://www.learnjsonschema.com/2020-12/core/ref"><code>$ref</code></a> JSON Schema keyword and de-reference them with well known OpenAPI tools like <a href="https://redocly.com/docs/cli/commands/bundle"><code>redocly bundle</code></a></p>
        </div>
      </div>
      <div class="col-12 col-md-6 col-lg-4">
        <div class="text-center">
          <div class="mb-3">
            <img src="from-editors.png" alt="OpenAPI Editors" class="img-fluid rounded shadow-sm border border-dark">
          </div>
          <h4 class="h5 fw-bold mb-2">OpenAPI Editors</h4>
          <p class="text-muted small mb-0">Most popular OpenAPI editors, such as <a href="https://scalar.com">Scalar</a>, can de-reference external HTTPS requests to schemas hosted in public schema registries like <a href="https://schemas.sourcemeta.com/sourcemeta/std">schemas.sourcemeta.com</a></p>
        </div>
      </div>
      <div class="col-12 col-md-6 col-lg-4">
        <div class="text-center">
          <div class="mb-3">
            <img src="from-submodule.png" alt="Git Submodule" class="img-fluid rounded shadow-sm border border-dark">
          </div>
          <h4 class="h5 fw-bold mb-2">Git Submodule</h4>
          <p class="text-muted small mb-0">Our schemas are publicly available on <a href="https://github.com/sourcemeta/std">GitHub</a>. Pull them as a submodule like any other dependency and reference them from your OpenAPI specs using relative file paths</p>
        </div>
      </div>
      <div class="col-12 col-md-6 col-lg-4">
        <div class="text-center">
          <div class="mb-3">
            <img src="from-registry.png" alt="Schema Registries" class="img-fluid rounded shadow-sm border border-dark">
          </div>
          <h4 class="h5 fw-bold mb-2">Schema Registries</h4>
          <p class="text-muted small mb-0">For extra power and organisation-wide API Governance programs, ingest the schemas in JSON Schema 2020-12 compatible registries like the <a href="/">Sourcemeta Registry</a></p>
        </div>
      </div>
      <div class="col-12 col-md-6 col-lg-4">
        <div class="text-center">
          <div class="mb-3">
            <img src="from-zip.png" alt="Download Archive" class="img-fluid rounded shadow-sm border border-dark">
          </div>
          <h4 class="h5 fw-bold mb-2">Download Archive</h4>
          <p class="text-muted small mb-0">Often useful in scripting environments. Fetch the latest ZIP or tarball from <a href="https://github.com/sourcemeta/std/releases">GitHub Releases</a> and use the JSON files that come with it as you wish</p>
        </div>
      </div>
      <div class="col-12 col-md-6 col-lg-4">
        <div class="text-center">
          <div class="mb-3">
            <img src="from-copypaste.png" alt="Copy & Paste" class="img-fluid rounded shadow-sm border border-dark">
          </div>
          <h4 class="h5 fw-bold mb-2">Copy & Paste</h4>
          <p class="text-muted small mb-0">Sometimes you don't need to get fancy. You can always browse the schemas in <a href="https://schemas.sourcemeta.com/sourcemeta/std">schemas.sourcemeta.com</a> and just copy-paste the ones you need</p>
        </div>
      </div>
    </div>
  </div>
</section>

<section id="pricing" class="bg-light border-top border-bottom py-5">
  <div class="container">
    <h3 class="display-6 fw-bold mb-3">Pricing</h3>

    <p class="lead mb-5"><b>Pay Once, Use Forever</b>. Not per API. Not per developer. Not per revenue milestone. One payment for your company, unlimited use, for all your current and future APIs and JSON Schema projects, forever. No SaaS subscription hell.</p>

    <div class="row g-4 mb-4">
      <div class="col-12 col-lg-4">
        <div class="d-flex flex-column gap-4 h-100">
          <div class="card shadow-sm flex-grow-1">
            <div class="card-body text-center p-4">
              <h3 class="h4 fw-bold mb-2">Community</h3>
              <h2 class="display-6 mb-3">€0</h2>
              <p class="text-muted mb-2">Free forever for non-commercial projects such as personal projects, open specifications, research, and open-source organisations.</p>
              <p class="text-muted fw-light small mb-3">Note: Requires attribution</p>
              <a href="https://github.com/sourcemeta/std" class="btn btn-outline-primary">View on GitHub</a>
            </div>
          </div>
          <div class="card shadow-sm flex-grow-1">
            <div class="card-body text-center p-4">
              <h3 class="h4 fw-bold mb-2">OEM</h3>
              <h2 class="display-6 mb-3">Custom</h2>
              <p class="text-muted mb-3">Offer our schemas to your end users as part of your own product (i.e. OpenAPI editors and API management platforms) in a white-labelling manner and without attribution</p>
              <a href="mailto:hello@sourcemeta.com" class="btn btn-outline-primary">Let's Talk!</a>
            </div>
          </div>
        </div>
      </div>
      <div class="col-12 col-lg-8 mt-5 mt-lg-4">
        <div class="position-relative h-100">
          <div class="position-absolute top-0 start-50 translate-middle" style="z-index: 10;">
            <span class="badge bg-primary px-3 py-2">Most Popular</span>
          </div>
          <div class="card border-primary shadow-lg h-100">
            <div class="card-header py-3 text-bg-primary border-primary text-center">
              <h3 class="h2 my-0 fw-bold">Commercial</h3>
            </div>
            <div class="card-body d-flex flex-column text-center">
              <h1 class="display-3 fw-bold mb-1">{{< price >}}</h1>
              <p class="lead text-muted mb-4">One-time payment (no subscription)</p>

              <ul class="list-unstyled mb-4 text-start mx-auto">
                <li class="mb-3"><i class="bi bi-check-circle-fill text-success me-2"></i>Commercial use (for a single company)</li>
                <li class="mb-3"><i class="bi bi-check-circle-fill text-success me-2"></i>Lifetime access to power all your APIs</li>
                <li class="mb-3"><i class="bi bi-check-circle-fill text-success me-2"></i>Free updates forever</li>
                <li class="mb-3"><i class="bi bi-check-circle-fill text-success me-2"></i>All future schemas included</li>
                <li class="mb-3"><i class="bi bi-check-circle-fill text-success me-2"></i>Premium support (Slack Connect or Discord)</li>
                <li class="mb-3"><i class="bi bi-check-circle-fill text-success me-2"></i>Publish public OpenAPI specs that use the schemas</li>
                <li class="mb-3"><i class="bi bi-check-circle-fill text-success me-2"></i>Request any new schemas you need</li>
              </ul>

              <div class="mt-auto">
                <a href="https://store.sourcemeta.com/checkout/buy/670d6aac-d746-4dd7-aa82-f61f160ceb5b" class="btn btn-primary btn-lg px-5 mb-3">Purchase License</a>
                <p class="small text-muted mb-0"><a href="mailto:hello@sourcemeta.com">Contact us</a> for a full refund within 30-days of purchase. No questions asked</p>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>

    <p class="mb-5 small text-muted">Read the <a href="https://github.com/sourcemeta/std/blob/main/LICENSE">license</a> document for more details. If you have questions , don't hesitate to <a href="mailto:hello@sourcemeta.com">reach out</a>!</p>

    <div class="alert alert-light border mt-5 mb-0">
      <p class="mb-0"><i class="bi bi-info-circle me-2"></i>This library is maintained by a <a href="https://www.linkedin.com/in/jviotti/" class="fw-semibold">member of the JSON Schema Technical Steering Committee</a>. Your purchase directly supports our open-source contributions and continuous involvement in the JSON Schema ecosystem. Thanks for your help making the JSON Schema standard thrive!</p>
    </div>
  </div>
</section>

<section class="py-5 bg-white">
  <div class="container">
    <div class="text-center mb-5">
      <h2 class="display-5 fw-bold mb-3">What's the Alternative?</h2>
      <p class="lead text-muted mx-auto" style="max-width: 1100px;">This is not about <a href="https://www.learnjsonschema.com/2020-12/core/ref"><code>$ref</code></a>. It's about having the in-house talent and correctly implementing <strong>dozens of specifications</strong>, reading paywalled standards, handling edge cases, keeping up with updates, and obsessively guaranteeing compliance.</p>
    </div>

    <div class="table-responsive">
      <table class="table table-bordered">
        <thead>
          <tr>
            <th class="bg-light p-3" style="width: 20%;"></th>
            <th class="text-center p-3" style="width: 20%;">
              <span class="fw-bold">Do it yourself</span>
            </th>
            <th class="text-center p-3" style="width: 20%;">
              <span class="fw-bold">With ChatGPT</span>
            </th>
            <th class="text-center p-3" style="width: 20%;">
              <span class="fw-bold">Ignore the problem</span>
            </th>
            <th class="text-center bg-success bg-opacity-10 border-top border-start border-end border-dark border-2 p-3" style="width: 20%;">
              <span class="fw-bold">With <img src="/logo.svg" alt="Sourcemeta" height="20" class="align-text-bottom mx-1"> Sourcemeta</span>
            </th>
          </tr>
        </thead>
        <tbody>
          <tr>
            <td class="bg-light fw-semibold p-3">Reading Specifications</td>
            <td class="p-3">€30,000<br><small class="text-muted">(375 hours)</small></td>
            <td class="p-3"><span class="text-muted">Hope ChatGPT was illegaly trained with the potentially copyrighted standards</span></td>
            <td class="p-3"><span class="text-muted">Not needed</span></td>
            <td class="bg-success bg-opacity-10 border-start border-end border-dark border-2 p-3"><i class="bi bi-check-circle-fill text-success"></i> <span class="fw-semibold">Done for you</span></td>
          </tr>
          <tr>
            <td class="bg-light fw-semibold p-3">Implementation & Testing</td>
            <td class="p-3">€60,000<br><small class="text-muted">(750 hours)</small></td>
            <td class="p-3"><span class="text-muted">Ask ChatGPT</span></td>
            <td class="p-3"><span class="text-muted">Basic type checks everywhere</span></td>
            <td class="bg-success bg-opacity-10 border-start border-end border-dark border-2 p-3"><i class="bi bi-check-circle-fill text-success"></i> <span class="fw-semibold">Hundreds of schemas ready and more coming</span></td>
          </tr>
          <tr>
            <td class="bg-light fw-semibold p-3">Annual Maintenance</td>
            <td class="p-3">€20,000/year<br><small class="text-muted">(250 hours)</small></td>
            <td class="p-3"><span class="text-muted">Ask ChatGPT again</span></td>
            <td class="p-3"><span class="text-muted">None (as you are barely validating)</span></td>
            <td class="bg-success bg-opacity-10 border-start border-end border-dark border-2 p-3"><i class="bi bi-check-circle-fill text-success"></i> <span class="fw-semibold">Free updates forever</span></td>
          </tr>
          <tr>
            <td class="bg-light fw-semibold p-3">Standards Compliance</td>
            <td class="p-3 text-warning"><i class="bi bi-exclamation-triangle-fill"></i> If done correctly</td>
            <td class="p-3 text-danger"><i class="bi bi-x-circle-fill"></i> No guarantees</td>
            <td class="p-3 text-danger"><i class="bi bi-x-circle-fill text-danger"></i> No compliance at all</td>
            <td class="bg-success bg-opacity-10 border-start border-end border-dark border-2 p-3"><i class="bi bi-check-circle-fill text-success"></i> <span class="fw-semibold">Guaranteed</span></td>
          </tr>
          <tr>
            <td class="bg-light fw-semibold p-3">Security Risks</td>
            <td class="p-3 text-warning"><i class="bi bi-exclamation-triangle-fill"></i> Low (if done correctly)</td>
            <td class="text-danger p-3">Data breach: <span class="fw-bold">€50K-500K+</span><br><small>GDPR: €20M or 4% revenue</small></td>
            <td class="text-danger p-3">Security incident: <span class="fw-bold">€100K+</span></td>
            <td class="bg-success bg-opacity-10 border-start border-end border-dark border-2 p-3"><i class="bi bi-check-circle-fill text-success"></i> <span class="fw-semibold">Battle-tested</span></td>
          </tr>
          <tr>
            <td class="bg-light fw-semibold p-3">Support</td>
            <td class="p-3">Your team's problem</td>
            <td class="p-3">Your team's problem</td>
            <td class="p-3">Your team's problem</td>
            <td class="bg-success bg-opacity-10 border-start border-end border-dark border-2 p-3"><i class="bi bi-check-circle-fill text-success"></i> <span class="fw-bold">Premium support by a member of the JSON Schema Technical Steering Committee</span></td>
          </tr>
          <tr class="border-top border-dark border-2">
            <td class="bg-light fw-bold p-3">Total First Year</td>
            <td class="bg-danger bg-opacity-25 fw-bold p-3 text-danger">€110,000+<br><small class="text-dark fw-normal">Assuming you managed to hire a JSON Schema expert</small></td>
            <td class="bg-danger bg-opacity-25 fw-bold p-3 text-danger">€0 → Catastrophic Risk<br><small class="text-dark fw-normal">Worth saving {{< price >}}?</small></td>
            <td class="bg-danger bg-opacity-25 fw-bold p-3 text-danger">€0 → High Risk<br><small class="text-dark fw-normal">Worth saving {{< price >}}?</small></td>
            <td class="bg-success text-white fw-bold fs-5 border-bottom border-start border-end border-dark border-2 p-3">{{< price >}}<br><small class="text-white">ROI in the first week</small></td>
          </tr>
        </tbody>
      </table>
    </div>

    <p class="text-muted text-center mt-1"><small>Cost calculations assume a mid-level developer at €80/hour (conservative industry average)</small></p>
  </div>
</section>

<section class="py-5 bg-gradient" style="background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);">
  <div class="container">
    <div class="text-center mb-5">
      <h2 class="display-5 fw-bold mb-3">An investment that quickly pays for itself</h2>
      <p class="lead text-muted w-lg-75 mx-auto">Solve the OpenAPI authoring problem for your company forever</p>
    </div>

    <div class="row g-4 text-center mb-5">
      <div class="col-12 col-md-6 col-lg-3">
        <div class="p-4 bg-white rounded h-100 border border-dark border-2">
          <div class="display-1 text-primary mb-3"><i class="bi bi-coin"></i></div>
          <h3 class="h6 fw-bold mb-2">A week of developer salary</h3>
          <p class="text-muted small mb-0">A fraction of the time and cost to produce these schemas yourself</p>
        </div>
      </div>
      <div class="col-12 col-md-6 col-lg-3">
        <div class="p-4 bg-white rounded h-100 border border-dark border-2">
          <div class="display-1 text-primary mb-3"><i class="bi bi-infinity"></i></div>
          <h3 class="h6 fw-bold mb-2">Perpetual ownership</h3>
          <p class="text-muted small mb-0">Every project, every team, forever. Including all new schemas</p>
        </div>
      </div>
      <div class="col-12 col-md-6 col-lg-3">
        <div class="p-4 bg-white rounded h-100 border border-dark border-2">
          <div class="display-1 text-primary mb-3"><i class="bi bi-slack"></i></div>
          <h3 class="h6 fw-bold mb-2">World-class support included</h3>
          <p class="text-muted small mb-0">Have an API and JSON Schema expert on your speed dial for help</p>
        </div>
      </div>
      <div class="col-12 col-md-6 col-lg-3">
        <div class="p-4 bg-white rounded h-100 border border-dark border-2">
          <div class="display-1 text-primary mb-3">6+</div>
          <h3 class="h6 fw-bold mb-2">Months of work saved per API</h3>
          <p class="text-muted small mb-0">Avoid a whole class of input/output correctness and security bugs</p>
        </div>
      </div>
    </div>

    {{< talk-to-us >}}
  </div>
</section>

<section class="py-5 position-relative overflow-hidden">
  <div class="container position-relative">
    <div class="text-center mb-5">
      <h2 class="display-5 fw-bold mb-3">Trusted by elite API architects</h2>
      <p class="lead text-muted">See what the world's leading specification experts are saying</p>
    </div>

    <div class="row g-4">
      <div class="col-12 col-md-6 col-lg-4">
        {{< testimonial github="ronitelman" name="Ron Itelman" role="Founder at TrustLoop.ai" >}}This is definitely going to become an incredibly important reference library for defining concepts using best in class standards{{< /testimonial >}}
      </div>

      <div class="col-12 col-md-6 col-lg-4">
        {{< testimonial github="mwadams" name="Matthew Adams" role="Founder at Endjin Limited" >}}This is a terrific project and should be a standard subscription for any enterprise working with JSON Schema{{< /testimonial >}}
      </div>

      <div class="col-12 col-md-6 col-lg-4">
        {{< testimonial github="paraskakis" name="Emmanuel Paraskakis" role="Founder at Level 250" >}}This aligns exactly with my thinking! OpenAPI should not include schemas but should reference them externally from a source of truth like this one{{< /testimonial >}}
      </div>

      <div class="col-12 col-md-6 col-lg-6">
        {{< testimonial github="ikenna" name="Ikenna Nwaiwu" role="API Governance Consultant at Ikenna Consulting" >}}Before this library, defining foundational schemas in an enterprise was a time-consuming, error-prone task that could result in inconsistencies. This library is a game-changer, delivering huge time savings while ensuring improved API consistency and strong governance of API definition files{{< /testimonial >}}
      </div>

      <div class="col-12 col-md-6 col-lg-6">
        {{< testimonial github="egekorkan" name="Ege Korkan" role="W3C Web of Things Expert" >}}Right now there is a big disconnect between ontology work and API work. This project has the potential to bridge that gap by making widely used ontologies available on JSON Schema{{< /testimonial >}}
      </div>
    </div>
  </div>
</section>

<section class="py-5 bg-light border-top">
  <div class="container">
    <h3 class="display-6 fw-bold mb-3">Frequently Asked Questions</h3>

    <p class="mb-5 small text-muted">Do you have any other questions regarding the schemas? Don't hesitate to <a href="mailto:hello@sourcemeta.com">reach out</a>!</p>

    <div class="accordion" id="faqAccordion">
      <div class="accordion-item">
        <h2 class="accordion-header">
          <button class="accordion-button collapsed fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#faq1">
            Can I publicly publish OpenAPI specs that use these schemas?
          </button>
        </h2>
        <div id="faq1" class="accordion-collapse collapse" data-bs-parent="#faqAccordion">
          <div class="accordion-body">
            <p>Yes. However, if your API is for-profit, you'll need a commercial license. Your end users can freely consume your published OpenAPI specification without needing their own license, as they're using your specification rather than directly consuming our schemas.</p>
          </div>
        </div>
      </div>

      <div class="accordion-item">
        <h2 class="accordion-header">
          <button class="accordion-button collapsed fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#faq2">
            Can I use this with existing schemas?
          </button>
        </h2>
        <div id="faq2" class="accordion-collapse collapse" data-bs-parent="#faqAccordion">
          <div class="accordion-body">
            <p>Absolutely. These schemas are designed as composable building blocks. Reference them, extend them, or add additional constraints as you wish.</p>
          </div>
        </div>
      </div>

      <div class="accordion-item">
        <h2 class="accordion-header">
          <button class="accordion-button collapsed fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#faq3">
            What JSON Schema version do these schemas use?
          </button>
        </h2>
        <div id="faq3" class="accordion-collapse collapse" data-bs-parent="#faqAccordion">
          <div class="accordion-body">
            <p class="mb-0">All schemas target <strong>JSON Schema 2020-12</strong>, which is the dialect used by OpenAPI v3.1 and later. Support for earlier JSON Schema dialects will be added in future releases.</p>
          </div>
        </div>
      </div>

      <div class="accordion-item">
        <h2 class="accordion-header">
          <button class="accordion-button collapsed fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#faq4">
            How often are schemas updated?
          </button>
        </h2>
        <div id="faq4" class="accordion-collapse collapse" data-bs-parent="#faqAccordion">
          <div class="accordion-body">
            <p>We regularly update schemas to reflect new standards, fix bugs, and expand coverage for additional specifications. We follow semantic versioning, so you can upgrade at your own pace without breaking existing specifications.</p>
          </div>
        </div>
      </div>

      <div class="accordion-item">
        <h2 class="accordion-header">
          <button class="accordion-button collapsed fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#faq5">
            Can I contribute schemas to the repository?
          </button>
        </h2>
        <div id="faq5" class="accordion-collapse collapse" data-bs-parent="#faqAccordion">
          <div class="accordion-body">
            <p>Yes. We welcome contributions via pull requests on <a href="https://github.com/sourcemeta/std">GitHub</a>.</p>
          </div>
        </div>
      </div>

      <div class="accordion-item">
        <h2 class="accordion-header">
          <button class="accordion-button collapsed fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#faq6">
            Can I modify the schemas?
          </button>
        </h2>
        <div id="faq6" class="accordion-collapse collapse" data-bs-parent="#faqAccordion">
          <div class="accordion-body">
            <p>Yes, as long as you preserve the license-related metadata keywords that identify the schema origin and licensing terms for downstream consumers.</p>
          </div>
        </div>
      </div>

      <div class="accordion-item">
        <h2 class="accordion-header">
          <button class="accordion-button collapsed fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#faq7">
            Can I use these schemas on open specifications from a body such as the IETF or W3C?
          </button>
        </h2>
        <div id="faq7" class="accordion-collapse collapse" data-bs-parent="#faqAccordion">
          <div class="accordion-body">
            <p>Yes. This qualifies under the Community license. Users of your specification can freely use the schemas as they are consuming your specification rather than our schemas directly.</p>
          </div>
        </div>
      </div>

      <div class="accordion-item">
        <h2 class="accordion-header">
          <button class="accordion-button collapsed fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#faq8">
            Should I get a commercial license if my company is for-profit but all of it is open-source?
          </button>
        </h2>
        <div id="faq8" class="accordion-collapse collapse" data-bs-parent="#faqAccordion">
          <div class="accordion-body">
            <p>Yes. A commercial license is required for any for-profit venture, regardless of whether your code is open-source.</p>
          </div>
        </div>
      </div>

      <div class="accordion-item">
        <h2 class="accordion-header">
          <button class="accordion-button collapsed fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#faq9">
            How do I correctly attribute these schemas?
          </button>
        </h2>
        <div id="faq9" class="accordion-collapse collapse" data-bs-parent="#faqAccordion">
          <div class="accordion-body">
            <p>If you use the schemas unmodified, the embedded metadata provides automatic attribution. No additional action is required.</p>
          </div>
        </div>
      </div>

      <div class="accordion-item">
        <h2 class="accordion-header">
          <button class="accordion-button collapsed fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#faq10">
            Do I need to pay every time I use this on an API?
          </button>
        </h2>
        <div id="faq10" class="accordion-collapse collapse" data-bs-parent="#faqAccordion">
          <div class="accordion-body">
            <p>We charge a one time fee per company. Once you bought it for your company, you can use it to design as many APIs as you wish, forever.</p>
          </div>
        </div>
      </div>

      <div class="accordion-item">
        <h2 class="accordion-header">
          <button class="accordion-button collapsed fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#faq11">
            Can't I just generate my API specifications with Swagger/OpenAPI generators?
          </button>
        </h2>
        <div id="faq11" class="accordion-collapse collapse" data-bs-parent="#faqAccordion">
          <div class="accordion-body">
            <p>Generators help you scaffold OpenAPI structure, but the schemas they generate are very simple and loose, barely documenting the details of your API for compliance, security, and correctness purposes. In comparison, we did the work of defining correct and highly detailed schemas for hundreds of foundational types.</p>
          </div>
        </div>
      </div>
    </div>
  </div>
</section>

{{< blueprint color="dark" class="border-top py-5" >}}
  <div class="text-center py-4">
    <h2 class="display-3 fw-bold mb-4 text-white">Ready to solve OpenAPI design<br><span class="text-gradient-metal">at your company forever?</span></h2>
    <p class="lead mb-4 mx-auto text-white-50" style="max-width: 700px;">One payment. Perpetual access. Never write schemas from scratch again.</p>

    <div class="d-flex flex-column flex-sm-row justify-content-center align-items-center gap-3 mb-4">
      <a href="#pricing" class="btn btn-light btn-lg px-5 shadow">
        <i class="bi bi-infinity me-2"></i>Get Lifetime Access
      </a>
      <a href="https://schemas.sourcemeta.com/sourcemeta/std" class="btn btn-outline-light btn-lg">
        Browse Schemas First
      </a>
    </div>

    <small class="text-white-50 d-block mt-3">
      <i class="bi bi-shield-check me-1"></i>
      30-day money-back guarantee • Maintained by a JSON Schema TSC member
    </small>
  </div>
{{< /blueprint >}}