CryptoLabel | Free Crypto Address Label API

# CryptoLabel > CryptoLabel is an independent developer project that resolves public blockchain addresses into normalized address, presentation entity, and label data. ## Product - Website: https://cryptolabel.io/ - About: https://cryptolabel.io/about - Documentation: https://cryptolabel.io/docs - Playground: https://cryptolabel.io/playground - Blog: https://cryptolabel.io/blog - Blog RSS feed: https://cryptolabel.io/feed.xml - Bitcoin address lookup: https://cryptolabel.io/bitcoin-address-lookup - Ethereum address lookup: https://cryptolabel.io/ethereum-address-lookup - Tron address lookup: https://cryptolabel.io/tron-address-lookup ## Supported networks - Bitcoin - Ethereum - Tron CryptoLabel accepts a supported chain and a public blockchain address. A successful response contains normalized query data, address type and model, an explorer URL, a presentation entity, and zero or more labels. Missing attribution is returned explicitly as Unknown. Results are informational and may be incomplete or change over time. ## Public API - Address labeling API: https://cryptolabel.io/blockchain-address-labeling-api - API overview: https://cryptolabel.io/api/v1 - Address lookup: GET https://cryptolabel.io/api/v1/address/{chain}/{address} - Interactive OpenAPI reference: https://cryptolabel.io/api/v1/openapi - OpenAPI 3.1 schema: https://cryptolabel.io/api/v1/openapi.json The public API does not require an API key. Use the current documentation and OpenAPI schema as the source of truth for fields, enums, and errors. ## MCP - MCP product guide: https://cryptolabel.io/blockchain-mcp-server - MCP endpoint: https://cryptolabel.io/api/mcp - MCP setup guide: https://cryptolabel.io/docs The MCP endpoint exposes CryptoLabel documentation and address lookup tools to compatible clients. ## Usage notes - Never submit private keys, seed phrases, or secrets. - An entity or label is contextual data, not proof of address ownership. - CryptoLabel is not financial, legal, investme

{"openapi":"3.1.0","info":{"title":"CryptoLabel API","version":"1.0.0","description":"Public API for resolving crypto addresses into presentation entities and labels."},"servers":[{"url":"https://cryptolabel.io/api/v1","description":"Production"}],"paths":{"/address/{chain}/{address}":{"get":{"operationId":"getAddressDetails","summary":"Resolve crypto address labels","description":"Resolves an address, detects its type and model, maps it to a presentation entity, and returns all known labels.","