Welcome

The Blacksheep API lets you quote, swap, and withdraw between fiat and crypto, manage external bank and wallet destinations, and receive webhook events for state changes.

Where to start

• New to the API? Read Concepts → Overview for the mental model.
• Ready to integrate? Follow Get Started → Authentication to sign your first request.
• Looking for a specific flow? Jump to Guides.

Conventions used in these docs

• Endpoints are described as tRPC paths (e.g. transaction.initiateSwap). The HTTP request path mirrors that: POST /transaction.initiateSwap.
• Request and response bodies are JSON. Success responses wrap the result in { "data": ... }; errors return { "error": { "code", "message" } }.
• All requests must be signed — see Authentication.
• Money values are serialized as { value, code, decimals } objects; crypto currencies also carry a chain. value is a string-encoded integer in the smallest unit (cents, wei).