Onchain GraphQL APIs & DEX APIs
HTTPS CORS apiKey
Blockchain
13 APIs available
Browse 13 free Blockchain APIs. Find the perfect API for your next project.
Showing 13 of 13 APIs
Multichain block explorer REST API (with Etherscan-compatible JSON-RPC)
HTTPS No CORS apiKey
Build hybrid smart contracts with Chainlink
HTTPS CORS ? Free
Chainpoint is a global network for anchoring data to the Bitcoin blockchain
HTTPS CORS ? Free
Multi-blockchain data aggregator platform
HTTPS CORS ? apiKey
Ethereum explorer API
HTTPS CORS apiKey
Helium is a global, distributed network of Hotspots that create public, long-range wireless coverage
HTTPS CORS ? Free
Blockchain-as-a-service solution that provides high-quality connection via API
HTTPS CORS ? apiKey
Blockchain-based blogging and social media website
HTTP No CORS Free
Solana on-chain agent trust scoring via MCP; 4 free tools to score, resolve and verify AI agent wallets
HTTPS CORS Free
Indexing protocol for querying networks like Ethereum with GraphQL
HTTPS CORS ? apiKey
To retrieve Walltime's market info
HTTPS CORS ? Free
Provide simple and reliable API access to Ethereum blockchain
HTTPS CORS ? apiKey