Bitquery
HTTPS CORS apiKey
Onchain GraphQL APIs & DEX APIs
API Endpoint
https://graphql.bitquery.io/ideMore Blockchain 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