DEX swap price quoteGET /swap-quote/quote/:chain/:tokenIn/:tokenOut · x402 API by x402
DEX swap price quote — indicative UniswapV2 amount-out, price & price-impact for any token pair from live on-chain reserves on Base/Ethereum
What does this x402 API do?
DEX swap price quote. This is an x402-gated GET API resource from x402. TOLL·402 did not invoke this route automatically because doing so was not considered safe. No normalized USD price is recorded; the listing names Base. No settled paid call has been verified.
- Published price
- No normalized USD price is recorded
- Networks
- Base
- Latest evidence
- TOLL·402 did not invoke this route automatically because doing so was not considered safe
- Resource ID
- 3127be77dcfa81ab8b3936ec
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://x402.professorsausages.com/swap-quote/quote/:chain/:tokenIn/:tokenOut", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Observed in 402-index
Discovered through bazaar.
- Registry record checked
Registry health: degraded.
- Exact route checked
not safely testable · unresolved-url-template
- Origin reachable
OPTIONS https://x402.professorsausages.com/ returned 405.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.