Quote — one GET

request

GET /?from=BTC&to=ETH&amount=0.1 — the response HTML carries the best line, output after all fees, ETA and quiet lines. Same parameters work on /swap

create

POST / with form fields from, to, amount, line, dest — plus refund when the line is Chainflip or a sub line (strict deposits). Redirects 303 to /s/{ref} with the one-time deposit address

execution

optional mode on quote and create: fast (default) · patient (protocol streaming/DCA where native) · boost (Chainflip BTC deposits). Lines without native support fall back to fast honestly — never blocked

partner

optional partner string on quote and create — echoed back in the response, no semantics yet (a hook for future rev-share); nothing is stored

status

GET /s/{ref} — state, deposit address, expiry. /track finds a swap by ref or deposit address

json

a dedicated JSON endpoint with OpenAPI + llms.txt ships in a later engine bundle — the HTML flow above is stable and sufficient for agents today