# UseAnyChain

> Free, wallet-less, read-only multi-chain toolkit: detect which blockchain an address, transaction hash, ENS name or website belongs to, check it live, and avoid wrong-network mistakes. Also an open REST API and MCP server.

## API (no key required)
- GET https://useanychain.com/api/v1/health
- GET https://useanychain.com/api/v1/resolve?q={address|tx|ens|domain}
- GET https://useanychain.com/api/v1/scan?domain={domain}
- GET https://useanychain.com/api/v1/guard?address={a}&chain={chain_id}
- GET https://useanychain.com/api/v1/chains
- MCP (Streamable HTTP): https://useanychain.com/api/mcp  (tools: resolve_input, scan_domain, check_address_for_chain, list_chains)

## Docs
- https://useanychain.com/api-docs
- https://useanychain.com/openapi.json
- https://useanychain.com/registry