https://pro-api.coingecko.com/api/v3/x402/onchain/simple/networks/base/token_price/0x940181a94a35a4569e4529a3cdfb74e38fd98631,0x311935cd80b76769bf2ecc9d8ab7635b2139cf82,0x4200000000000000000000000000000000000006,0x9b5e262cf9bb04869ab40b19af

Query onchain DEX token price & market data based on the provided token contract addresses on a network.

https://pro-api.coingecko.com/api/v3/x402/onchain/simple/networks/base/token_price/0x940181a94a35a4569e4529a3cdfb74e38fd98631,0x311935cd80b76769bf2ecc9d8ab7635b2139cf82,0x4200000000000000000000000000000000000006,0x9b5e262cf9bb04869ab40b19af91d2dc85761722,0x16ee7ecac70d1028e7712751e2ee6ba808a7dd92,0xd9aaec86b65d86f6a7b5b1b0c42ffa531710b6ca,0x5ab3d4c385b400f3abb49e80de2faf6a88a7b691,0xeb466342c4d449bc9f53a865d5cb90586f405215

USE THIS RESOURCE

Start with a quote-only recipe. Payment signing stays in your project.

CODE

AI CODING TOOLS

quote-check.ts

const response = await fetch("https://pro-api.coingecko.com/api/v3/x402/onchain/simple/networks/base/token_price/0x940181a94a35a4569e4529a3cdfb74e38fd98631,0x311935cd80b76769bf2ecc9d8ab7635b2139cf82,0x4200000000000000000000000000000000000006,0x9b5e262cf9bb04869ab40b19af91d2dc85761722,0x16ee7ecac70d1028e7712751e2ee6ba808a7dd92,0xd9aaec86b65d86f6a7b5b1b0c42ffa531710b6ca,0x5ab3d4c385b400f3abb49e80de2faf6a88a7b691,0xeb466342c4d449bc9f53a865d5cb90586f405215", {
  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.

JSON ↗developer docs →

STATUS HISTORY

JSON RSS

Live 402 quote confirmed2026-07-10 15:10 UTC
GET returned a protocol-valid 402 quote (402). No payment was made.
Origin reachable2026-07-10 15:04 UTC
HEAD https://pro-api.coingecko.com/ returned 404.
Observed in cdp-bazaar2026-07-10 13:31 UTC
The registry record was observed and retained with provenance.
Observed in 402-index2026-07-10 13:31 UTC
Discovered through bazaar.
Registry record checked2026-07-08 02:05 UTC
Registry health: healthy.

EVIDENCE

cdp-bazaarobserved 2026-07-10 · https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources

402-indexobserved 2026-07-10 · https://402index.io/api/v1/services

origin checkHEAD https://pro-api.coingecko.com/ → 404 on 2026-07-10

route quotelive 402 quote confirmed · GET 402 · 2026-07-10

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.

PAYMENT OPTIONS

eip155:8453exact10000 atomic · 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpexact10000 atomic · EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v