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Awesome Blockchain & Crypto APIs Awesome

The most comprehensive curated list of blockchain & crypto data APIs, RPC providers, indexers, market-data feeds, DEX/NFT/DeFi APIs, oracles, embedded wallets, MEV streams, and developer infrastructure for 2026.

300+ APIs and data services across multi-chain data, RPC providers, EVM indexers, Solana-native APIs, Bitcoin & Lightning, market & DEX data, NFT, DeFi, MEV, oracles, wallet-as-a-service, embedded wallets, streaming (Kafka/gRPC/WebSocket), historical archives, AI/MCP, and SDKs.

Awesome PRs Welcome — see Contributing.


⭐ Featured: Bitquery — The Universal Blockchain Data API

The most complete blockchain data infrastructure for builders — DEX trades, OHLC candles, market cap, wallet PnL, decoded transactions across 8+ chains, in GraphQL, Kafka, gRPC, and MCP.

Bitquery API Chains Streams

🔗 Bitquery powers the data layer behind hundreds of trading bots, dashboards, AI agents, alpha groups, and analytics platforms in crypto.

Feature Details
Chains Solana, Ethereum, BSC, Base, Arbitrum, Optimism, Polygon, Tron + many more
Coverage DEX trades, OHLCV, market cap, FDV, wallet PnL, NFT, transfers, decoded smart-contract events
Pump.fun / LetsBonk / Four.meme / SunPump Real-time + historical, bonding-curve aware
Real-time streams GraphQL subscriptions, WebSocket, Kafka, gRPC
MCP mcp.bitquery.io — plain-English queries from Claude / Cursor / ChatGPT
No-code dashboard DEXrabbit — DexScreener-alternative UI on top of the API
Free tier Yes — generous public-good limits, scale up with paid plans
Use cases Trading bots, alpha groups, DeFi dashboards, AI agents, exchange listings, tax engines

🔗 Quick links: Pump.fun API · DEXrabbit dashboard · Bitquery MCP · GraphQL IDE · Docs


📖 About

Awesome Blockchain & Crypto APIs is a deeply curated directory of every API, data service, RPC provider, indexer, oracle, and SDK that crypto builders need in 2026. Whether you're building a trading bot, AI agent, DeFi dashboard, NFT marketplace, wallet, or institutional analytics platform — this list points you at the right data source for every layer.

What this list covers

  • 🌐 Multi-chain blockchain data APIs — Bitquery, Alchemy, Moralis, Tatum, Nodit, Covalent
  • 🔌 RPC providers — Helius, QuickNode, Alchemy, Chainstack, Triton, Shyft, GetBlock, Ankr, dRPC, OnFinality
  • 🟣 Solana-specific APIs — Helius DAS, Solana Tracker, Birdeye, Bitquery Solana, Triton Geyser
  • ⛓️ EVM-specific APIs — Etherscan, Blockscout, BaseScan, BscScan
  • 🟠 Bitcoin & Lightning APIs — Mempool.space, Blockchair, BlockCypher, Voltage, Lightning Loop
  • 📊 Market & price data — CoinGecko, CoinMarketCap, CryptoCompare, Messari, Kaiko, Amberdata
  • 💱 DEX data APIs — DexScreener, GeckoTerminal, DexPaprika, DexTools, Defined.fi, DEXrabbit
  • 🎨 NFT data APIs — OpenSea, Reservoir, NFTGo, Magic Eden, Bitquery NFT
  • 🏦 DeFi-specific data — DefiLlama, Token Terminal, Dune, Flipside, Pulsar, Onchain Insights
  • 🐳 Smart-money / on-chain intelligence — Nansen, Arkham, Lookonchain, Cielo, GMGN
  • 👛 Wallet & portfolio APIs — Zerion, Zapper, DeBank, Octav, CoinStats, Step Finance
  • 🌉 Bridge & cross-chain — deBridge, LiFi, Squid Router, Socket
  • ⚔️ MEV / mempool — Flashbots, Eigenphi, BloXroute, Jito, Helius Mempool
  • 🔬 Tx simulation / tracing — Tenderly, Alchemy Sim, Phalcon, Rivet
  • 🌊 Streaming APIs — Bitquery Kafka/gRPC, Helius Webhooks, QuickNode Streams, Substreams
  • 🗄️ Historical / archive — Bitquery, Dune, Flipside, Allium, Goldsky
  • 🪙 Oracles — Chainlink, Pyth, RedStone, Stork, Switchboard, API3
  • 🔐 Embedded wallets / WaaS — Privy, Dynamic, Magic, Web3Auth, Turnkey, Coinbase WaaS, Para
  • 📈 Subgraphs / custom indexing — The Graph, Goldsky, Subsquid, Substreams, Envio, Subgraph Studio
  • 🤝 AI / MCP for blockchain data (cross-link to Awesome Crypto MCPs)
  • 🛠️ SDKs & libraries — web3.js, ethers, viem, wagmi, anchor, solana/web3.js, hyperliquid SDK
  • 🌍 DePIN data networks — Grass, Hivemapper, IoTeX
  • 🆓 Free public APIs for hobbyists and indie builders

Pricing reality (2026)

Tier Typical use Examples
Free / Hobbyist < 100K req/day Bitquery free tier, CoinGecko Demo, DexScreener, GeckoTerminal, Helius Free, Alchemy Sandbox
Pro / Indie ($50–$500/mo) Indie SaaS, small bots Helius Pro, QuickNode Build, CoinMarketCap Hobbyist, Birdeye Pro
Business ($500–$5K/mo) Production apps Bitquery Business, Alchemy Growth, Moralis Pro, CoinGecko Pro
Enterprise ($5K+/mo) Exchanges, funds Bitquery Enterprise, Kaiko, Messari Pro, Nansen Pro, TaxBit

Choosing the right API

  • Building a trading bot? Bitquery (real-time + outlier-filtered) or Helius for Solana speed
  • Building a wallet UI? Zerion / Zapper / DeBank / Bitquery / Moralis NFT API
  • Building an AI agent? Bitquery MCP + Solana Agent Kit + Hyperliquid MCP
  • Building a tax engine? Bitquery raw trades + CoinLedger / TaxBit / Awaken APIs
  • Building a DeFi dashboard? DefiLlama API + Token Terminal + Dune
  • Indie hacker on a budget? DexScreener API + GeckoTerminal + CoinGecko Demo (all free)

Disclaimer: Pricing, free-tier limits, and feature sets change constantly. Always verify on the provider's pricing page before integrating. Some links in this list are affiliate / referral links (marked 🎟️) — they don't change the price you pay.


📑 Table of Contents

Legend — 🟢 Live · 🟡 Beta / Limited · 🔴 Inactive · ⚡ Top-tier · 🆕 Launched 2025/26 · 🎟️ Affiliate link · 🆓 Free / open-source


🌐 Multi-Chain Blockchain Data APIs

The "data warehouse" layer — query indexed blockchain data across many chains via GraphQL, REST, or streams.

API Coverage Strengths Status Website
⚡ ⭐ Bitquery 8+ chains (Solana, ETH, BSC, Base, Tron, Polygon, Arb, Op + more) DEX trades, OHLCV, market cap, wallet PnL, bonding-curve aware, GraphQL + Kafka + gRPC + MCP 🟢 Live bitquery.io
Alchemy 30+ chains Token / NFT / Portfolio APIs, SDK, sandbox tier 🟢 Live alchemy.com
Moralis EVM + Solana Wallet, Token, NFT, DeFi APIs, Webhook streams 🟢 Live moralis.io
Helius Solana Enhanced APIs, Webhooks, DAS, Mempool 🟢 Live helius.dev
QuickNode 25+ chains RPC + add-on marketplace + Streams 🟢 Live quicknode.com
Tatum 130+ networks Unified blockchain API, simple SDK 🟢 Live tatum.io
Nodit Labs EVM + Solana Multi-chain Web3 API 🟢 Live nodit.io
Covalent 200+ chains Unified token + balance + tx API 🟢 Live covalenthq.com
Mobula Multichain Real-time data + execution layer, no caching 🟢 Live mobula.io
Blockscout APIs EVM Open-source explorer APIs 🟢 Live blockscout.com
Pinax Multichain The Graph-backed substreams 🟢 Live pinax.network
Allium Multichain Enterprise-grade structured blockchain data 🟢 Live allium.so
Footprint Analytics Multichain Unified chain data + dashboards 🟢 Live footprint.network

🔌 RPC Providers

Raw JSON-RPC + Web3-RPC endpoints for sending transactions, querying state, and powering wallets/dApps.

Provider Chains Notable Features Status Website
Alchemy 30+ Sandbox tier, smart contract APIs 🟢 Live alchemy.com
QuickNode 25+ Lowest p50 latency in many tests 🟢 Live quicknode.com
Helius Solana Premium Solana RPC, DAS, Webhooks 🟢 Live helius.dev
Chainstack 70+ Elastic Nodes, geo-load-balanced 🟢 Live chainstack.com
Triton One Solana Premium Solana, gRPC + Geyser 🟢 Live triton.one
Shyft Solana RPC + APIs 🟢 Live shyft.to
🎟️ GetBlock 50+ Multi-chain RPC 🟢 Live getblock.io
Ankr 50+ Production RPC, premium tiers 🟢 Live ankr.com
dRPC 60+ Decentralized RPC marketplace 🟢 Live drpc.org
OnFinality 80+ Multi-chain RPC + indexing 🟢 Live onfinality.io
Dwellir 60+ EU-based premium RPC 🟢 Live dwellir.com
Infura (Consensys) 20+ The OG EVM RPC 🟢 Live infura.io
HypeRPC Hyperliquid First dedicated Hyperliquid RPC 🟢 Live hyperpc.app
PublicNode 30+ Free public RPC 🟢 Live publicnode.com
NodeReal EVM BSC + opBNB + EVM RPC 🟢 Live nodereal.io
BlastAPI 70+ Multi-chain RPC 🟢 Live blastapi.io
Tenderly Web3 Gateway EVM RPC + simulation in one 🟢 Live tenderly.co
Lava Network EVM + Solana Decentralized RPC marketplace 🟢 Live lavanet.xyz
Glif Filecoin Filecoin RPC + APIs 🟢 Live glif.io
Solana Foundation Public RPC Solana Free, rate-limited 🟢 Live docs.solana.com

🟣 Solana-Specific Data APIs

For Solana builders — DAS (Digital Asset Standard), SPL tokens, NFTs, DEX trades, MEV, Geyser streams.

API Strengths Status Website
Helius DAS, Webhooks, Enhanced Tx, Photon, Mempool 🟢 Live helius.dev
Bitquery Solana Pump.fun, Raydium, Jupiter, full DEX coverage 🟢 Live bitquery.io
Triton One Geyser Sub-millisecond Solana streams 🟢 Live triton.one
Shyft Solana APIs + RPC + Webhooks 🟢 Live shyft.to
Birdeye Solana + multi-chain pricing API 🟢 Live birdeye.so
Solana Tracker Solana memecoin data + APIs 🟢 Live solanatracker.io
Jupiter API DEX aggregator, swap routing 🟢 Live jup.ag
Jupiter Price API Solana token prices 🟢 Live station.jup.ag
Pyth Network (Solana) High-frequency oracle prices 🟢 Live pyth.network
Solscan API Solana explorer data 🟢 Live solscan.io
Solana FM API Jupiter Labs explorer API 🟢 Live solana.fm
MadeOnSol API Solana KOL trades, deployer reputation 🟢 Live madeonsol.com
Dialect Solana wallet messaging 🟢 Live dialect.to
Photon Memescope Pump.fun + Moonshot scan API 🟢 Live photon-sol.tinyastro.io

⛓️ EVM-Specific Data APIs

For Ethereum, Base, Arbitrum, Optimism, Polygon, BSC, Avalanche, and other EVM chains.

API Strengths Status Website
Alchemy Enhanced APIs Token / NFT / Trace / Sim 🟢 Live alchemy.com
Etherscan API Full EVM tx history, contract verification 🟢 Live etherscan.io
BscScan API BSC block explorer API 🟢 Live bscscan.com
BaseScan API Base block explorer API 🟢 Live basescan.org
Blockscout API Open-source EVM explorer API 🟢 Live blockscout.com
Bitquery EVM DEX trades + decoded events 🟢 Live bitquery.io
Moralis EVM Wallet, Token, NFT, DeFi APIs 🟢 Live moralis.io
Covalent EVM Unified balances + tx history 🟢 Live covalenthq.com
The Graph (EVM) Subgraphs for any EVM chain 🟢 Live thegraph.com
Goldsky EVM real-time indexing 🟢 Live goldsky.com
Subsquid EVM indexer 🟢 Live subsquid.io
Envio High-performance EVM indexer 🟢 Live envio.dev
DefiLlama API TVL + DeFi data per chain 🟢 Live defillama.com/docs/api

🟠 Bitcoin & Lightning Data APIs

API Coverage Strengths Status Website
Mempool.space Bitcoin Public API for fees, mempool, blocks 🟢 Live mempool.space
Blockchain.com API Bitcoin Classic Bitcoin block + tx API 🟢 Live blockchain.com
BlockCypher Bitcoin + EVM Multi-chain unified API 🟢 Live blockcypher.com
Blockchair Bitcoin + 17 chains Bitcoin-first multi-chain API 🟢 Live blockchair.com
mempool.space API Bitcoin Real-time fee + mempool API 🟢 Live mempool.space/docs
Voltage Lightning Lightning-as-a-service 🟢 Live voltage.cloud
LNbits Lightning Self-hosted Lightning wallet API 🟢 Live lnbits.com
Lightning Loop API Lightning Submarine-swap + LSP API 🟢 Live lightning.engineering
OpenNode Lightning Bitcoin + Lightning payments API 🟢 Live opennode.com
Bitkern API Bitcoin Bitcoin tx data 🟢 Live bitkern.com
Bitcoin Core RPC Bitcoin Run-your-own RPC 🟢 Live bitcoincore.org

🔍 Block Explorer APIs

Explorer Chain Notable Status Website
Etherscan API Ethereum The standard EVM explorer API 🟢 Live etherscan.io
Solscan API Solana Solana standard explorer API 🟢 Live solscan.io
Solana FM API Solana Jupiter Labs explorer 🟢 Live solana.fm
BscScan API BNB Chain BSC explorer API 🟢 Live bscscan.com
BaseScan API Base Base explorer API 🟢 Live basescan.org
PolygonScan API Polygon Polygon explorer API 🟢 Live polygonscan.com
Arbiscan API Arbitrum Arbitrum explorer API 🟢 Live arbiscan.io
Optimism Etherscan API Optimism OP explorer API 🟢 Live optimistic.etherscan.io
Tronscan API Tron Tron explorer API 🟢 Live tronscan.org
Blockscout API Multi-EVM Open-source explorer API 🟢 Live blockscout.com
HyperEVMScan Hyperliquid HL explorer (Etherscan team) 🟢 Live hyperevmscan.io
Arkham Explorer Multi Entity-mapped block explorer 🟢 Live arkm.com

📊 Crypto Market & Price Data APIs

API Strengths Free Tier Status Website
CoinGecko API 14K+ coins, 2.5M+ pairs, free demo, hobbyist-friendly ✅ Demo 🟢 Live coingecko.com/api
CoinMarketCap API The original, broad market intelligence + DEX API ✅ Basic 🟢 Live coinmarketcap.com/api
CryptoCompare OHLC, news, social data 🟢 Live cryptocompare.com
Messari API Institutional research + protocol metrics Limited 🟢 Live messari.io/api
Kaiko Institutional, regulated-grade data Paid 🟢 Live kaiko.com
Amberdata Institutional crypto data + DeFi Paid 🟢 Live amberdata.io
CoinAPI Unified crypto market data API ✅ Trial 🟢 Live coinapi.io
CoinPaprika API Free coin metrics + market data ✅ Free 🟢 Live coinpaprika.com
CoinLore API Free crypto data + tickers ✅ Free 🟢 Live coinlore.com
Bitquery Price API Outlier-filtered DEX prices, OHLCV ✅ Free 🟢 Live bitquery.io
Birdeye API Solana + multi-chain pricing API 🟢 Live docs.birdeye.so
Defined.fi API Real-time pair data API Paid 🟢 Live defined.fi/api
Pyth Benchmark Pyth oracle benchmark prices ✅ Free 🟢 Live pyth.network
Glassnode API Bitcoin + Ethereum on-chain metrics Paid 🟢 Live glassnode.com
IntoTheBlock Institutional on-chain analytics API Paid 🟢 Live intotheblock.com
Santiment On-chain + social + dev metrics ✅ + Paid 🟢 Live santiment.net
LunarCrush Social sentiment + Galaxy Score ✅ + Paid 🟢 Live lunarcrush.com
CryptoAPIs Unified market API ✅ Trial 🟢 Live cryptoapis.io

💱 DEX Data APIs

For real-time DEX trades, pairs, liquidity, and OHLCV.

API Coverage Strengths Status Website
Bitquery DEX 8+ chains Outlier-filtered, decoded, GraphQL/Kafka 🟢 Live bitquery.io
DexScreener API Multichain The default DEX data API, free 🟢 Live docs.dexscreener.com
GeckoTerminal API Multichain CoinGecko's free DEX API 🟢 Live geckoterminal.com
DexPaprika 20+ chains Real-time DEX data, 5M+ tokens 🟢 Live dexpaprika.com
DexTools API Multichain DEX discovery + audits 🟢 Live dextools.io
Defined.fi API Multichain Pro-grade pair data API 🟢 Live defined.fi/api
DEXrabbit 8+ chains Bitquery-powered, no-code dashboard + API 🟢 Live dexrabbit.bitquery.io
0x API EVM Aggregator + swap quotes 🟢 Live 0x.org
1inch API EVM Aggregator + Pathfinder 🟢 Live 1inch.io/docs
Uniswap Subgraph Uniswap Official Uniswap subgraph data 🟢 Live uniswap.org/docs
Jupiter API Solana DEX aggregator API 🟢 Live jup.ag
CowSwap API EVM MEV-protected swaps 🟢 Live cow.fi
DappLooker HL Perp API Hyperliquid Hyperliquid perp data + indicators 🟢 Live dapplooker.com

🎨 NFT Data APIs

API Coverage Strengths Status Website
OpenSea API Multichain The standard NFT marketplace API 🟢 Live opensea.io
Reservoir API EVM Cross-marketplace NFT API 🟢 Live reservoir.tools
NFTGo Multichain NFT analytics + market data 🟢 Live nftgo.io
Magic Eden API 17 chains Cross-chain NFT marketplace API 🟢 Live docs.magiceden.io
Helius DAS Solana Digital Asset Standard for Solana NFTs 🟢 Live helius.dev
Bitquery NFT Multichain Decoded NFT trades + transfers 🟢 Live bitquery.io
Alchemy NFT API Multichain Token + metadata + ownership 🟢 Live alchemy.com
Moralis NFT API Multichain NFT metadata + collections 🟢 Live moralis.io/nft-api
SimpleHash Multichain Unified NFT API 🟢 Live simplehash.com
Tensor API Solana Solana NFT marketplace API 🟢 Live tensor.trade
CryptoPunks API Ethereum CryptoPunks-specific data 🟢 Live cryptopunks.app
DappRadar NFT API Multichain NFT collection rankings 🟢 Live dappradar.com
NFTPort Multichain NFT minting + data API 🟢 Live nftport.xyz
Center API Multichain NFT discovery + metadata 🟢 Live center.dev
Rarify Multichain NFT pricing + valuation 🟢 Live rarify.tech

🏦 DeFi Data APIs

For TVL, protocol-level metrics, lending markets, perps, vaults, yields.

API Coverage Strengths Free Tier Status Website
DefiLlama API All major DeFi The standard for TVL + DEX volumes + perps + stablecoins ✅ Free 🟢 Live defillama.com/docs/api
Token Terminal DeFi protocols Revenue + earnings + cohort metrics Paid 🟢 Live tokenterminal.com
Dune Analytics API Multichain SQL-on-blockchain, custom dashboards ✅ Free + Paid 🟢 Live dune.com
Flipside Crypto Multichain Curated SQL on Solana, EVM, Cosmos ✅ Free 🟢 Live flipsidecrypto.xyz
Allium Multichain Enterprise structured DeFi data Paid 🟢 Live allium.so
Footprint Analytics Multichain Unified DeFi data + dashboards ✅ Free 🟢 Live footprint.network
DappRadar API Multichain dApp rankings + DeFi metrics Paid 🟢 Live dappradar.com/api
Pulsar API Multichain Wallet behaviour + DeFi flows Paid 🟢 Live pulsar.fi
Aave Subgraph Aave Aave protocol data ✅ Free 🟢 Live aave.com
Lido API Lido Liquid staking metrics ✅ Free 🟢 Live lido.fi
Pendle API Pendle Yield trading data 🟢 Live pendle.finance
EigenLayer API EigenLayer Restaking metrics 🟢 Live eigenlayer.xyz
Yearn API Yearn Vault data ✅ Free 🟢 Live yearn.fi
Curve API Curve Curve pools + gauges 🟢 Live curve.fi

🐳 Smart Money & On-Chain Intelligence APIs

API Coverage Strengths Status Website
Nansen API Multichain 500M+ labeled wallets, smart-money flows 🟢 Live nansen.ai
Arkham API Multichain Entity de-anonymisation, KOL tags 🟢 Live arkm.com
Cielo API 30+ chains Cross-chain wallet tracking 🟢 Live cielo.finance
GMGN API Multichain Smart-money + KOL feeds (memecoin focus) 🟢 Live gmgn.ai
Lookonchain Multichain Real-time whale tracking 🟢 Live lookonchain.com
Bubblemaps API Multichain Holder cluster visualisation 🟢 Live bubblemaps.io
MadeOnSol API Solana KOL trades + deployer reputation 🟢 Live madeonsol.com/developer
Hyperbot API Hyperliquid + Aster Whale + copy-trading API 🟢 Live hyperbot.network
HyperStats API Hyperliquid Wallet PnL + leaderboards 🟢 Live hyperstats.org
Glassnode BTC + ETH Institutional on-chain metrics 🟢 Live glassnode.com
IntoTheBlock Multichain Token holder + flow analytics 🟢 Live intotheblock.com
Santiment Multichain On-chain + dev + social 🟢 Live santiment.net
Bitquery Wallet PnL 8 chains Wallet-level PnL via GraphQL 🟢 Live bitquery.io

👛 Wallet & Portfolio APIs

For wallet UIs, portfolio dashboards, and balance/PnL aggregation.

API Coverage Strengths Status Website
Zerion API EVM Wallet portfolio + DeFi positions 🟢 Live zerion.io
Zapper API EVM DeFi portfolio + tx history 🟢 Live zapper.xyz
DeBank Open API EVM + Hyperliquid Wallet activity + DeFi tracking 🟢 Live open.debank.com
Octav API 20+ chains Multi-chain portfolio tracking 🟢 Live octav.fi
🎟️ CoinStats API Multi Mobile portfolio + alerts 🟢 Live coinstats.app
Step Finance API Solana Solana portfolio dashboard 🟢 Live step.finance
Birdeye Wallet API Solana + Multi Wallet PnL + holdings 🟢 Live birdeye.so
HyperFolio API HyperEVM + Hyperliquid HL wallet + positions 🟢 Live hyperfolio.xyz
Helius Wallet API Solana Solana wallet + DAS 🟢 Live helius.dev
Bitquery Portfolio 8 chains Wallet + multi-chain holdings 🟢 Live bitquery.io
Rabby OpenAPI EVM Used by Rabby Wallet 🟢 Live openapi.rabby.io
Bigmoon Portfolio Multichain Cross-chain holdings 🟢 Live bigmoon.io

💵 Stablecoin Data APIs

API Strengths Status Website
DefiLlama Stablecoins TVL + supply + chain breakdown 🟢 Live defillama.com/stablecoins
Allium Stablecoin API Enterprise stablecoin metrics 🟢 Live allium.so
Visa Onchain Stablecoin Visa-curated stablecoin volume 🟢 Live visaonchainanalytics.com
Bitquery Stablecoin Stablecoin transfers + flows 🟢 Live bitquery.io
Tether Transparency API USDT supply + reserves 🟢 Live tether.to/transparency
Circle USDC Data USDC supply, mint/burn 🟢 Live circle.com
MakerDAO API DAI supply + stability fees 🟢 Live makerdao.com
Frax API Frax stablecoin metrics 🟢 Live frax.finance

🌉 Bridge & Cross-Chain Data APIs

API Coverage Strengths Status Website
deBridge API 30+ chains Cross-chain swap routing + fees 🟢 Live debridge.finance
LiFi API Multichain Bridge aggregator + routing 🟢 Live li.fi
Squid Router API Multichain Axelar-based cross-chain 🟢 Live squidrouter.com
Socket API (formerly Bungee) Multichain Bridge aggregator API 🟢 Live socket.tech
Stargate API LayerZero chains Stablecoin bridge 🟢 Live stargate.finance
Wormhole API 30+ chains Cross-chain messaging 🟢 Live wormhole.com
Across API EVM Across bridge metrics 🟢 Live across.to
Synapse API Multichain Bridge data 🟢 Live synapseprotocol.com
Orbiter Finance API EVM L2s L2-to-L2 bridge 🟢 Live orbiter.finance
DefiLlama Bridges All bridges TVL + volume per bridge 🟢 Live defillama.com/bridges

⚔️ MEV, Mempool & Block-Builder APIs

API Coverage Strengths Status Website
Flashbots Relay API Ethereum MEV-Boost relay data 🟢 Live flashbots.net
Eigenphi Multichain MEV / sandwich analytics API 🟢 Live eigenphi.io
BloXroute Multichain High-performance mempool + MEV 🟢 Live bloxroute.com
MEV-Inspect EVM Open-source MEV indexer (Flashbots) 🟢 Live GitHub
Jito Labs API Solana Solana MEV + bundle relays 🟢 Live jito.network
Helius Mempool Solana Solana pre-confirmation mempool 🟢 Live helius.dev
Helius Photon Solana Real-time tx subscription 🟢 Live helius.dev
Manifold Finance Multichain MEV-protected RPC 🟢 Live manifoldfinance.com
mev.fyi Multichain MEV research database 🟢 Live mev.fyi
Sandwich.dev EVM Sandwich attack detection 🟢 Live sandwich.dev

🔬 Transaction Simulation & Tracing APIs

API Coverage Strengths Status Website
Tenderly EVM Tx simulation + debugger + alerts 🟢 Live tenderly.co
Alchemy Simulation API EVM Pre-confirm tx simulation 🟢 Live alchemy.com
Phalcon (BlockSec) EVM Tx tracing + threat detection 🟢 Live phalcon.blocksec.com
Rivet EVM Open-source tx debugging 🟢 Live rivet.sh
Foundry / Anvil EVM Local fork + simulation (open-source) 🟢 Live getfoundry.sh
Helius Tx Sim Solana Solana tx pre-flight simulation 🟢 Live helius.dev
Fork.so EVM Fork-based simulation 🟢 Live fork.so
Ethereum Tracer Ethereum trace_call, trace_block via Geth 🟢 Live Ethereum Docs

🌊 Streaming APIs (Kafka, gRPC, WebSocket)

For low-latency, real-time blockchain data feeds — essential for trading bots, monitoring, and high-frequency analytics.

Provider Streams Coverage Status Website
Bitquery Kafka + gRPC Trades, transfers, OHLC, blocks 8+ chains 🟢 Live bitquery.io
Helius Webhooks + Photon Solana Solana 🟢 Live helius.dev
QuickNode Streams Block, log, trace 25+ chains 🟢 Live quicknode.com
Triton Geyser Solana Sub-ms Solana streams 🟢 Live triton.one
Substreams (StreamingFast) Subgraph-style streams EVM + Solana + Cosmos 🟢 Live substreams.streamingfast.io
Goldsky Streams EVM EVM real-time indexing 🟢 Live goldsky.com
Alchemy Notify EVM Webhook notifications 🟢 Live alchemy.com/notify
Moralis Streams EVM + Solana Webhook + WebSocket 🟢 Live moralis.io/streams
Web3.py / Web3.js Subscriptions EVM WebSocket subscriptions 🟢 Live web3py.readthedocs.io
BloXroute BDN Multichain High-perf mempool stream 🟢 Live bloxroute.com
Drift Grafana / WebSocket Solana (Drift) Real-time perp metrics 🟢 Live drift.trade
Hyperliquid WebSocket Hyperliquid Order book + trade stream 🟢 Live hyperliquid.gitbook.io
Pyth WebSocket Multichain High-frequency oracle prices 🟢 Live pyth.network

🗄️ Historical & Archive Data APIs

For backtesting, research, audit, and long-tail analytics.

API Coverage Strengths Status Website
Bitquery Historical Multi-year, 8+ chains DEX trades + events going back years 🟢 Live bitquery.io
Dune Analytics Multichain SQL on Spellbook tables 🟢 Live dune.com
Flipside Crypto Multichain Curated SQL tables 🟢 Live flipsidecrypto.xyz
Allium Multichain Enterprise structured archive 🟢 Live allium.so
Goldsky Mirror EVM Postgres-style historical indexing 🟢 Live goldsky.com/mirror
Google BigQuery (Crypto Public Datasets) BTC + ETH + Solana Free public datasets 🟢 Live Google Cloud
AWS Public Blockchain Data EVM + Solana AWS-hosted public datasets 🟢 Live aws.amazon.com
Chainalysis Reactor API Multichain Compliance + investigation 🟢 Live chainalysis.com
TRM Labs API Multichain Compliance + risk data 🟢 Live trmlabs.com
Footprint Analytics Multichain Historical chain data 🟢 Live footprint.network
CoinAPI Historical Markets Historical OHLCV across exchanges 🟢 Live coinapi.io

📈 Subgraph & Custom Indexing

For builders who need their own indexed data (custom subgraphs, processors, ETL).

Tool Strengths Status Website
The Graph Decentralised subgraph network 🟢 Live thegraph.com
Goldsky Real-time EVM indexing + Mirror 🟢 Live goldsky.com
Substreams (StreamingFast) Stream-based indexing 🟢 Live substreams.streamingfast.io
Subsquid Open-source indexer 🟢 Live subsquid.io
Envio High-performance HyperIndex 🟢 Live envio.dev
Subgraph Studio The Graph hosted IDE 🟢 Live thegraph.com/studio
Ponder Open-source EVM indexing framework 🟢 Live ponder.sh
Indexer 2.0 (Pinax) The Graph-backed substreams 🟢 Live pinax.network
Hyperindex Envio's indexing engine 🟢 Live envio.dev
Anchor IDL Indexer Solana Anchor-based Solana indexer 🟢 Live
DipDup Tezos + EVM Multi-chain framework 🟢 Live
Sentio EVM + Solana Indexer + analytics framework 🟢 Live

🪙 Oracle APIs

Oracle Coverage Strengths Status Website
Chainlink Data Streams Multichain High-frequency push oracle 🟢 Live chain.link/data-streams
Pyth Network Multichain Sub-second prices, 1900+ feeds 🟢 Live pyth.network
Stork Oracle Multichain Sub-millisecond oracle 🟢 Live stork.network
RedStone Multichain Modular oracle, on-demand 🟢 Live redstone.finance
API3 Multichain First-party oracles 🟢 Live api3.org
Switchboard Solana + EVM Permissionless oracle 🟢 Live switchboard.xyz
Band Protocol Multichain Multi-chain oracle 🟢 Live bandprotocol.com
DIA Multichain Open-source data feeds 🟢 Live diadata.org
UMA Oracle Multichain Optimistic oracle 🟢 Live uma.xyz
Tellor Multichain Decentralised reporter 🟢 Live tellor.io
eOracle Multichain EigenLayer-secured oracle 🟢 Live eoracle.io

🔐 Embedded Wallet & Wallet-as-a-Service APIs

For building wallets into your app — passkeys, social logins, MPC, account abstraction.

Provider Strengths Status Website
Privy Email + social + passkey + MPC, full wallet lifecycle 🟢 Live privy.io
Dynamic Multi-wallet, social login, account abstraction 🟢 Live dynamic.xyz
Magic Email-based magic-link wallets 🟢 Live magic.link
Web3Auth (Tor.us) Social login + MPC 🟢 Live web3auth.io
Turnkey Programmable wallet infrastructure (used by Padre, GRVT) 🟢 Live turnkey.com
Coinbase WaaS Coinbase MPC + EVM 🟢 Live docs.cdp.coinbase.com
Para (formerly Capsule) Programmable embedded wallets 🟢 Live getpara.com
OpenZeppelin Defender Secure relays + automation 🟢 Live defender.openzeppelin.com
Fireblocks Institutional MPC custody + ops 🟢 Live fireblocks.com
Copper Institutional custody + settlement 🟢 Live copper.co
Anchorage Federally chartered crypto bank 🟢 Live anchorage.com
Lit Protocol Decentralized key management 🟢 Live litprotocol.com
ZenGo SDK MPC mobile-first wallet 🟢 Live zengo.com
Particle Network Smart wallet + intent layer 🟢 Live particle.network
Crossmint Embedded wallets + onramps + minting 🟢 Live crossmint.com
Pimlico Account-abstraction infra (bundler/paymaster) 🟢 Live pimlico.io
Biconomy Account abstraction stack 🟢 Live biconomy.io
Stackup ERC-4337 bundler + paymaster 🟢 Live stackup.sh
ZeroDev Smart accounts + AA infra 🟢 Live zerodev.app
Safe (formerly Gnosis Safe) Multi-sig wallet infra 🟢 Live safe.global

🔑 Authentication, Identity & Social Login APIs

Provider Strengths Status Website
SIWE (Sign-In with Ethereum) The standard EIP-4361 flow 🟢 Live login.xyz
Sign-In with Solana Solana equivalent 🟢 Live Solana docs
WalletConnect Wallet → dApp protocol 🟢 Live walletconnect.com
Reown (formerly WalletConnect Cloud) Hosted WC infrastructure 🟢 Live reown.com
AppKit Reown's React/Web SDK for wallet UX 🟢 Live reown.com
Privy Social login + embedded wallets 🟢 Live privy.io
Lens API Social graph + identity 🟢 Live lens.xyz
Farcaster API (Neynar) Farcaster social + identity 🟢 Live neynar.com
ENS API Ethereum name service lookups 🟢 Live ens.domains
Unstoppable Domains API Crypto domain resolution 🟢 Live unstoppabledomains.com
Lit Protocol Decentralised access control 🟢 Live litprotocol.com
Push Protocol Web3 notifications 🟢 Live push.org
XMTP Web3 messaging 🟢 Live xmtp.org
Gitcoin Passport Sybil-resistance identity 🟢 Live passport.gitcoin.co
Worldcoin (World ID) Proof-of-personhood 🟢 Live worldcoin.org

🤝 MCPs for Blockchain Data (AI Agents)

Connect AI agents (Claude / Cursor / ChatGPT / Codex) directly to blockchain data via Model Context Protocol. See Awesome Crypto MCPs for the complete list.

MCP Source Capabilities Status Link
Bitquery MCP Bitquery DEX trades, OHLC, market cap, wallet PnL across 8 chains in plain English 🟢 Live mcp.bitquery.io
Alchemy MCP Alchemy 159 tools for token / NFT / tx history / contract sim across 100+ chains 🟢 Live Alchemy MCP
Chainstack MCP Chainstack Manage nodes, search docs, infra mgmt 🟢 Live Chainstack MCP
QuickNode MCP QuickNode Endpoint config, usage, billing 🟢 Live QuickNode MCP
Tatum MCP Tatum 130+ networks via Tatum API 🟢 Live Tatum MCP
Nodit MCP Nodit Multi-chain Web3 API access 🟢 Live Nodit MCP
Moralis MCP Moralis Wallet activity, token metrics, dapp usage 🟢 Live Moralis MCP
thirdweb AI thirdweb Insight + Engine + Storage + Nebula 🟢 Live thirdweb AI
Blockscout MCP Blockscout EVM explorer data via MCP 🟢 Live Blockscout MCP
Dune Analytics MCP Dune SQL on indexed chains via AI 🟢 Live Dune MCP
The Graph MCP The Graph Search subgraphs, GraphQL queries 🟢 Live Graph MCP
Etherscan MCP Etherscan Pull EVM tx history into AI agent 🟢 Live Etherscan MCP
Solana Agent Kit MCP SendAI 40+ Solana actions for AI agents 🟢 Live Solana Agent Kit
Bird Eye MCP Birdeye Real-time Solana on-chain data 🟢 Live Birdeye
Pyth Network MCP Pyth 1,930+ feeds, real-time prices, TWAP 🟢 Live Pyth MCP
Chainlink Feeds MCP Chainlink Real-time decentralized prices 🟢 Live Chainlink MCP
DexScreener Trending MCP DexScreener Trending tokens feed 🟢 Live DexScreener MCP
Dappier MCP Dappier Real-time crypto + finance content 🟢 Live Dappier MCP

🌍 DePIN Data Networks

Decentralized data networks providing alternative bandwidth, scraping, and indexing infrastructure.

Network Type Status Website
🎟️ Grass Bandwidth-as-a-service for AI training 🟢 Live getgrass.io
Hivemapper Decentralized mapping network 🟢 Live hivemapper.com
IoTeX DePIN platform + DePIN-RPC 🟢 Live iotex.io
Helium Decentralized 5G + IoT 🟢 Live helium.com
Filecoin Decentralized storage 🟢 Live filecoin.io
Arweave Permanent storage protocol 🟢 Live arweave.org
Akash Network Decentralized cloud compute 🟢 Live akash.network
Render Network Decentralized GPU compute 🟢 Live rendernetwork.com

🏛️ CEX / Exchange APIs

For builders who need both on-chain and off-chain (CEX) data.

Exchange API Strengths Status Website
🎟️ Binance API Largest spot + futures, broad 🟢 Live binance.com
🎟️ Bybit API Derivatives-focused, strong futures + options 🟢 Live bybit.com
🎟️ OKX API Spot + Web3 wallet API 🟢 Live okx.com
🎟️ MEXC API Wide altcoin coverage 🟢 Live mexc.com
🎟️ KuCoin API Strong altcoin + futures 🟢 Live kucoin.com
Coinbase API US-regulated, institutional 🟢 Live coinbase.com
🎟️ Kraken API Mature spot + margin + futures 🟢 Live kraken.com
🎟️ Gate.io API Wide altcoin coverage 🟢 Live gate.io
🎟️ Bitget API Copy trading + derivatives 🟢 Live bitget.com
Bitstamp API EU-regulated 🟢 Live bitstamp.net
Crypto.com API Retail + institutional 🟢 Live crypto.com
Deribit API Crypto options + futures 🟢 Live deribit.com
CoinAPI Unified Unified across CEXs + DEXs 🟢 Live coinapi.io
CCXT Open-source unified CEX library 🟢 Live ccxt.com

🛠️ SDKs & Libraries

SDK Language Coverage Status Website
ethers.js JS / TS EVM 🟢 Live ethers.io
viem TS EVM (modern, type-safe) 🟢 Live viem.sh
wagmi TS / React EVM React hooks 🟢 Live wagmi.sh
web3.js JS EVM 🟢 Live web3js.readthedocs.io
web3.py Python EVM 🟢 Live web3py.readthedocs.io
Alloy Rust EVM (modern Rust) 🟢 Live alloy.rs
Foundry Rust EVM dev framework 🟢 Live getfoundry.sh
Hardhat JS / TS EVM dev framework 🟢 Live hardhat.org
@solana/web3.js TS Solana 🟢 Live solana-labs.github.io
@solana/kit TS Solana 2.0 SDK 🟢 Live solanakit.com
Anchor Rust Solana smart-contract framework 🟢 Live anchor-lang.com
Solders Python Solana 🟢 Live GitHub
Solana Agent Kit TS AI-agent toolkit (SendAI) 🟢 Live GitHub
GOAT SDK TS / Python Multi-chain AI-agent SDK 🟢 Live GitHub
Hyperliquid Python SDK Python Hyperliquid 🟢 Live GitHub
CCXT Python / JS / PHP CEX unification 🟢 Live ccxt.com
Bitcoin Core libbitcoin C++ Bitcoin 🟢 Live libbitcoin
lncli / LND SDK Go Lightning 🟢 Live lightning.engineering
Bitquery SDKs TS / Python GraphQL client wrappers 🟢 Live bitquery.io
Helius SDK TS Solana 🟢 Live helius.dev

🆓 Free Public APIs

For hobbyists, side-projects, and indie hackers who want to avoid signups.

API Coverage Status Website
🆓 CoinGecko Demo Prices + market cap 🟢 Live coingecko.com/api
🆓 DexScreener All DEX pairs 🟢 Live docs.dexscreener.com
🆓 GeckoTerminal DEX data 🟢 Live geckoterminal.com/api
🆓 DefiLlama TVL + DEX volumes 🟢 Live defillama.com/docs/api
🆓 Bitquery free tier Cross-chain GraphQL 🟢 Live bitquery.io
🆓 CoinPaprika Free market data 🟢 Live coinpaprika.com
🆓 CoinLore Free price data 🟢 Live coinlore.com
🆓 Mempool.space Bitcoin mempool 🟢 Live mempool.space
🆓 Blockchain.com Bitcoin data 🟢 Live blockchain.com
🆓 Solana RPC (public) Solana 🟢 Live docs.solana.com
🆓 PublicNode EVM RPC public endpoints 🟢 Live publicnode.com
🆓 Etherscan (free tier) EVM tx history 🟢 Live etherscan.io
🆓 Solscan free Solana explorer data 🟢 Live solscan.io
🆓 Uniswap subgraphs Uniswap data 🟢 Live uniswap.org

📚 Resources & Guides

Comparison & benchmarks

Bitquery deep-dives

Tutorials & how-tos

Communities


🔗 Related Awesome Lists


🤝 Contributing

PRs welcome — the API/infrastructure space ships fast.

  1. Fork this repo, create a feature branch (e.g. feature/add-foo-api).
  2. Match the table format of the section you're editing.
  3. Quality bar:
    • API must be live (or in beta — mark 🟡)
    • Must serve real builders (no marketing-page-only projects)
    • Free-tier or pricing transparency required
    • Not abandoned
  4. Use the legend consistently (🟢 / 🟡 / 🔴 / ⚡ / 🆕 / 🎟️ / 🆓).
  5. No referral spam. One affiliate link per row max.
  6. Open a PR with a one-line summary.

For corrections (broken links, dead projects, wrong free-tier limits) — open an issue or PR.


📄 License

MIT — see LICENSE.


Note: API pricing, free-tier limits, and feature sets change weekly. Always verify on the provider's pricing page before integrating into production. Some links in this list are affiliate / referral links (marked 🎟️) — they don't change the price you pay.

Made with ⚡ for the on-chain builder community.


🔍 Related Searches

If you arrived here looking for any of the following, you're in the right place:

blockchain API · crypto data API · Bitquery · Alchemy · Moralis · Helius · QuickNode · Solana RPC · Ethereum RPC · crypto market data API · DEX API · NFT API · wallet API · embedded wallet · Privy · Dynamic · WaaS · MCP for blockchain · crypto streaming API · Kafka blockchain · gRPC Solana · subgraph · The Graph · Goldsky


📈 Popular Use Cases

  • Trading bot builder — Bitquery (real-time + outlier-filtered) + Helius / Triton for Solana speed + Pyth for sub-second prices.
  • AI trading agent — Bitquery MCP + Solana Agent Kit MCP + Hyperliquid MCP — drop into Claude / Cursor for plain-English data + execution.
  • DeFi dashboard — DefiLlama + Token Terminal + Dune for protocol metrics; Bitquery + The Graph for raw protocol events.
  • NFT marketplace / aggregator — Reservoir + OpenSea + Magic Eden + Helius DAS for Solana.
  • Wallet UI — Zerion / Zapper / DeBank for EVM portfolio; Step Finance / Helius for Solana; Privy / Dynamic for embedded auth.
  • Crypto tax engine — Bitquery raw trades + CoinLedger / TaxBit / Awaken APIs for tax-form generation. (See Awesome Crypto Tax.)
  • Memecoin scanner — Bitquery Pump.fun / LetsBonk + DexScreener + Birdeye for daily flow + GMGN / MadeOnSol for KOL signals.
  • Smart-money copy-trading — Cielo + Nansen + Arkham + GMGN smart-money APIs feeding a trading bot.
  • Compliance / forensics — Chainalysis + TRM Labs + Arkham + Bitquery audit trail.
  • Embedded wallet for a consumer app — Privy or Dynamic for social login + Pimlico / Stackup for AA + Coinbase WaaS for MPC.
  • Indie hacker on a budget — DexScreener + GeckoTerminal + DefiLlama + CoinGecko Demo (all 100% free).
  • Hyperliquid trader / builder — HyperRPC + Bitquery + Hyperliquid Python SDK + Helius (for Solana cross-asset) + Hyperdash analytics.
  • Cross-chain swap router — LiFi + Squid + Socket + deBridge for multi-bridge routing.
  • Researcher / analyst — Dune + Flipside + Allium + Footprint for SQL-based crypto research.
  • MEV bot — Flashbots + Jito + bloXroute + Bitquery for back-running detection.

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The most comprehensive curated list of blockchain & crypto APIs in 2026 — 315+ services across data, RPC, indexing, market data, DEX/NFT/DeFi, MEV, oracles, embedded wallets, MCPs, and SDKs. Featuring Bitquery.

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