Skip to main content
The KaleidoSwap maker is the counterparty for every swap. Its public API is wire-compatible with the Boltz /v2 protocol for submarine, reverse, and chain swaps, and adds routes for RGB assets, single-transaction atomic swaps, pay-through, swap credentials, and Lightning channel orders.
Use the Swap SDK instead of calling this API directly. Every swap the maker creates must be checked against your own keys before you fund it, and every claim and refund is a transaction you build and sign. The SDK does both. Call the API directly only if you are building your own client, and read Swap flow first.

Base URL

All routes live under /v2, for example GET https://maker.signet.kaleidoswap.com/v2/version. The interactive playground on each endpoint page calls the signet maker.

What is in the API

The endpoint pages are generated from the maker’s OpenAPI specification. Swaps between Lightning and Arkade use a separate request-for-quote corridor that the Swap SDK speaks; it is not part of this reference.

Next steps

Conventions

Authentication, amounts, errors, and rate limits.

Swap flow

The calls each swap type makes, in order, and what to verify.