x402 census · x402-tools-production-2755.up.railway.app · 39d05cff97ee · JSON

GET /tools/dex-price

live

Use to price tokens by contract address, including long-tail tokens with no CoinGecko listing. Live DEX price, 24h change, volume, liquidity and market cap for up to 30 tokens per call on ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, solana. One flat price per call; not charged if no address has a price.

Verdict: live. The unpaid GET reached a valid 402 (confirmed by the re-probe of 2026-10-01).

Facts from the catalogs

Field Value

URL https://x402-tools-production-2755.up.railway.app/tools/dex-price

Method GET

Price $0.002 USDC = 2000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0xef7674f50f84e9b9a89af9dc40ffea56edf67d6c

Seller x402-tools-production-2755.up.railway.app

Catalogs cdp (row updated 2026-09-29)

Listed since (lower bound) 2026-09-29 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-29

CDP quality counters 2 calls and 1 unique payers in 30 days, last call 2026-09-29 (catalog-reported, not verified on chain)

Category (keyword rule) crypto-data

Templated path no

x402Version in catalog 2

Service name / tags x402 tools

Unpaid probe (census of )

Field

Value

Probe

not probed in this build

Latest re-probe

Field Value

Re-probed at 2026-10-01T08:13:42.000Z (cron)

Verdict now live changed from unprobed

HEAD / GET 400 / 402

accepts[0] {"scheme":"exact","network":"eip155:8453","amount":"2000","payTo":"0xef7674f50f84e9b9a89af9dc40ffea56edf67d6c","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":120,"extra":{"name":"USD Coin","version":"2"}}

Live amount equals catalog price yes

Latency 609 ms

Error none

On-chain facts for the payTo (public address)

Field Value

Distinct payers 1

Payments 36

USDC volume $0.12

Median payment n/a

First / last payment 2026-09-29 / 2026-09-30

Sampler-shaped share of payments n/a

Payers that are not samplers n/a

Source blockscout-sample — newest page of inbound ERC-20 transfers only (<=50); counts are a floor, not a total

Address 0xef7674f50f84e9b9a89af9dc40ffea56edf67d6c

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "addresses": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913,0x532f27101965dd16442e59d40670faf5ebb142e4",
   "network": "base"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "network": "base",
   "notFound": [
    "0x000000000000000000000000000000000000dead"
   ],
   "tokens": [
    {
     "address": "0x532f27101965dd16442e59d40670faf5ebb142e4",
     "change24hPct": 2.85,
     "coingeckoId": "based-brett",
     "decimals": 18,
     "fdvUsd": 57468786.31,
     "liquidityUsd": 1273603.23,
     "marketCapUsd": 57468763.64,
     "name": "Brett",
     "priceUsd": 0.0058,
     "symbol": "BRETT",
     "volume24hUsd": 469488.91
    }
   ]
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://x402-tools-production-2755.up.railway.app/tools/dex-price' -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/39d05cff97ee/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"39d05cff97ee"} 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 x402-tools-production-2755.up.railway.app.