No key
Every endpoint answers anonymously at 30 requests a minute per IP. A free key raises that. Self-serve, no review.
The swap API
Three calls: quote, execute, status. Every route we can find, no key, callable from a web page.
17Chains15 EVM + BTC + SOL20Routing venuesRaced in parallel20/20Healthy nowAll systems operational0Fees for usersPermanently
Quote, execute, follow it
Three calls end to end. Market-maker routes add one signature call in the middle.
- POST /quoteFans out to every eligible venue at once. You get the winner, a
quoteToken(a sealed receipt for that exact quote), and every route that lost inalternatives. - POST /executeTurns the
quoteTokeninto a payload you can act on, tagged with anexecutionType. - POST /submit-signatureOnly on
SIGNATUREroutes. The user signs a message, you hand it back, and we submit it. - GET /statusOne swap status, the same shape no matter which venue is underneath.
Three execution types
The response tells you which one you got. You never have to work it out.
quotePOST /quote
EXECUTEreturns one of three
- TRANSACTIONYOU SEND
- SIGNATUREGASLESS
- DEPOSITTO AN ADDRESS
settledstatus · webhook
- TRANSACTIONA transaction to sign and broadcast yourself. Standard on-chain routes.
- SIGNATUREA message the user signs in their wallet, no transaction. The market maker pays the gas and we submit it. The price they sign is the price they get.
- DEPOSITSend the origin asset to an address. This is how native Bitcoin sources work.
Everything else is public
All unauthenticated. This website is built on them.
- GET /chainsEvery chain we list a token registry for, with chain IDs.
- GET /tokensThe listed token registry for a chain.
- GET /tokens/resolveResolve a token address to its metadata.
- GET /tokens/btc-coverageWhich tokens on a chain really route from native Bitcoin as the source.
- GET /healthPer-venue liveness. Authoritative for which venues are racing.
What you do not have to build
No proxy
CORS is open, so browser code calls us directly. Nothing secret lands in your bundle.
No polling loop
Add a webhookUrl to your key and we tell your service when a swap settles, refunds or fails.
No test funds
sandbox: true runs the whole flow with no real money and no metering, with the same requests and responses as live.
No fee from us
Retail is 0 bps, permanently. Set your own 0 to 100 bps and we pay it out to you.
No contracts of ours
We wrote none. Settlement is the venue's, so there is nothing of ours in the path to audit.