https://api.agentfeeds.jp/v1/dex/spreads/summaryGET /v1/dex/spreads/summary · x402 API by agentfeeds
1-minute cross-venue spread statistics (bps). WETH/USDC across Uniswap v3 0.05%/0.3% and Aerodrome Slipstream on Base (on-chain mids); SOL/USDC as Jupiter aggregator mid vs executable 1-SOL quote (liquidity/impact measure, Powered by Jupiter). Descriptive statistics only; not investment advice. Free 15-min-delayed sample: /v1/sample/dex.spread_summary
What does this x402 API do?
https://api.agentfeeds.jp/v1/dex/spreads/summary. This is an x402-gated GET API resource from agentfeeds. TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-05. 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 confirmed a protocol-valid HTTP 402 quote on 2026-08-05
- Resource ID
- 5180fc42e737921b9ab4e8b3
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://api.agentfeeds.jp/v1/dex/spreads/summary", {
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 cdp-bazaar
The registry record was observed and retained with provenance.
- Observed in 402-index
Discovered through bazaar.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
HEAD https://api.agentfeeds.jp/ returned 404.
- Registry record checked
Registry health: healthy.
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.