x402 census · agent402.tools · 3eadddca3f0d · JSON

GET /api/coin-price-by-contract

live

Live price, market cap, 24h volume and 24h change for ERC-20 / SPL / other chain tokens looked up by CONTRACT ADDRESS on a named platform (ethereum, base, polygon-pos, arbitrum-one, optimistic-ethereum, binance-smart-chain, solana, avalanche, ...). Up to 25 contracts per call, any vs currency (default usd). The address-first sibling of crypto-price: use it when an agent holds a token address from…

Verdict: live. The unpaid GET reached a valid 402. The live amount equals the catalog price.

Facts from the catalogs

Field Value

URL https://agent402.tools/api/coin-price-by-contract

Method GET

Price $0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts eip155:137, eip155:42161, eip155:143, eip155:43114, eip155:1329, eip155:10, eip155:4663, eip155:42220, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, stellar:pubnet

payTo 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0

Seller agent402.tools

Catalogs cdp (row updated 2026-09-30)

Listed since (lower bound) 2026-09-30 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-30

CDP quality counters 3 calls and 2 unique payers in 30 days, last call 2026-09-30 (catalog-reported, not verified on chain)

Category (keyword rule) crypto-data

Templated path no

x402Version in catalog 2

Service name / tags Token price by contract address · crypto, token, price, contract, erc20

Unpaid probe (census of 2026-09-30)

Field Value

Probed at 2026-09-30T23:30:18.033Z

HEAD 402

GET 402

Verdict live live: valid 402 to an unpaid GET

402 carried in body

x402Version in the 402 2

accepts[0] {"scheme":"exact","network":"eip155:8453","amount":"5000","payTo":"0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}

Live amount equals catalog price yes

Live payTo equals catalog payTo yes

extensions.bazaar in the 402 yes

PAYMENT-REQUIRED header no

WWW-Authenticate offer Payment id="Jl_kx45KKWUEaRLDdgRk6bQJ6XlY

Content type / server / CORS application/json / railway-hikari / *

Latency 1,841 ms

Error Payment required

No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.

On-chain facts for the payTo (public address)

Field Value

Distinct payers 120

Payments 1,253

USDC volume $12.29

Median payment $0.003

First / last payment 2026-06-18 / 2026-09-30

Sampler-shaped share of payments 61.8%

Payers that are not samplers 2

Source forensics-2026-09-30

Address 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0 (contract: EIP7702StatelessDeleGator)

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "contracts": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
   "currency": "usd",
   "platform": "ethereum"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "cached": false,
   "count": 1,
   "currency": "usd",
   "fetchedAt": "2026-08-22T13:20:00.000Z",
   "platform": "ethereum",
   "source": "coingecko",
   "tokens": [
    {
     "change24hPct": 0.0212,
     "contract": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
     "lastUpdated": "2026-08-22T13:15:40.000Z",
     "marketCap": 73514026487.98,
     "price": 0.999916,
     "volume24h": 26092767405.46
    }
   ]
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://agent402.tools/api/coin-price-by-contract' -H 'accept: application/json'

The catalog declares GET. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.

Paid checks (x402, USDC on Base)

GET https://bazaar.agentexchange.work/r/3eadddca3f0d/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"3eadddca3f0d"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.

Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on agent402.tools.