
Multichain block explorer REST API (with Etherscan-compatible JSON-RPC).
Blockscout API is a free Blockchain API that requires apiKey authentication, is served over HTTPS and does not support CORS, so it should be called from a server.
Create and manage API keys for Blockscout and monitor usage statistics.
Details from dev.blockscout.com.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
RPC endpoints for 150+ blockchain networks, including Ethereum, Solana, Polkadot and Hyperliquid
The Blockscout API is provided by Blockscout DevPortal (dev.blockscout.com). Create and manage API keys for Blockscout and monitor usage statistics.
Yes. The Blockscout API is listed in the Blockchain category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The Blockscout API uses apiKey authentication, so you need to register for credentials before making requests.
Not directly. The Blockscout API does not allow CORS, so call it from a server, serverless function or proxy instead of front-end JavaScript.
Yes. The Blockscout API is served over HTTPS, so it's safe to use in production.