API archive entry · source-reported
Bitquery
Onchain GraphQL APIs & DEX APIs
Other Blockchain APIs
These records share a directory category and are ordered by similarity of reported access facts. They are a shortlist, not proof of drop-in compatibility.
Etherscan
Ethereum explorer API
API key · HTTPS reported · CORS Yes
Blockscout
Multichain block explorer REST API (with Etherscan-compatible JSON-RPC)
API key · HTTPS reported · CORS No
Covalent
Multi-blockchain data aggregator platform
API key · HTTPS reported · CORS Unknown
Nownodes
Blockchain-as-a-service solution that provides high-quality connection via API
API key · HTTPS reported · CORS Unknown
The Graph
Indexing protocol for querying networks like Ethereum with GraphQL
API key · HTTPS reported · CORS Unknown
Watchdata
Provide simple and reliable API access to Ethereum blockchain
API key · HTTPS reported · CORS Unknown
How to compare them
Coverage
Compare exact endpoints, fields, geography, history, and update frequency.
Operating cost
Model request volume, caching, overages, support, and migration cost.
Integration risk
Test auth, errors, pagination, latency, versioning, and outage behavior.
Data rights
Review attribution, redistribution, retention, privacy, and commercial-use terms.
Source reference
This page separates source-reported facts from questions that need live provider verification.