> /v1/apis/category/blockchain
Free Blockchain APIs[012]
12 free public APIs in the Blockchain category — 3 require no authentication, 11 support HTTPS, 4 have CORS enabled.
Bitquery
Onchain GraphQL APIs & DEX APIs
Bscscan
Binance Smart Chain explorer API
Chainlink
Build hybrid smart contracts with Chainlink
Chainpoint
Chainpoint is a global network for anchoring data to the Bitcoin blockchain
Covalent
Multi-blockchain data aggregator platform
Etherscan
Ethereum explorer API
GetBlock
Blockchain RPC Node provider that supports over 50 multiple blockchains
Layer4
Layer4 is a blockchain integration platform that supports no-code and API use
Nownodes
Blockchain-as-a-service solution that provides high-quality connection via API
Steem
Blockchain-based blogging and social media website
The Graph
Indexing protocol for querying networks like Ethereum with GraphQL
Watchdata
Provide simple and reliable API access to Ethereum blockchain
// FREQUENTLY ASKED
What are the best free Blockchain APIs?
The directory tracks 12 free public Blockchain APIs. Top picks include Bitquery, Bscscan, Chainlink, Chainpoint, Covalent — see the full list above, all free to use.
Are there free Blockchain APIs without authentication?
3 of 12 Blockchain APIs require no authentication and can be used immediately without an API key.
Do these APIs support HTTPS?
11 of 12 Blockchain APIs support HTTPS.