x402 census · gas-price-comparator.pdfextractapi.workers.dev · b3a10766f48b · JSON

POST /compare

unprobed

Compare live gas prices and estimated transfer cost across major EVM chains.

Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.

Facts from the catalogs

Field Value

URL https://gas-price-comparator.pdfextractapi.workers.dev/compare

Method POST

Price $0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0xA0AC44BECC6302298f01ed255B175ca1060C189E

Seller gas-price-comparator.pdfextractapi.workers.dev

Catalogs cdp (row updated 2026-09-28)

Listed since (lower bound) 2026-09-28 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-28

CDP quality counters 2 calls and 2 unique payers in 30 days, last call 2026-09-28 (catalog-reported, not verified on chain)

Category (keyword rule) crypto-data

Templated path no

x402Version in catalog 2

Service name / tags none

Unpaid probe (census of )

Field

Value

Probe

not probed in this build

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 2

Payments 28

USDC volume $0.29

Median payment $0.01

First / last payment 2026-08-30 / 2026-09-14

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0xA0AC44BECC6302298f01ed255B175ca1060C189E

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "chains": [
    "ethereum",
    "base",
    "polygon"
   ]
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "chains": [
    {
     "chain": "ethereum",
     "error": null,
     "gas_price_gwei": 1.2,
     "name": "Ethereum",
     "native_symbol": "ETH",
     "standard_transfer_cost_usd": 0.06
    },
    {
     "chain": "base",
     "error": null,
     "gas_price_gwei": 0.01,
     "name": "Base",
     "native_symbol": "ETH",
     "standard_transfer_cost_usd": 0.0005
    }
   ],
   "cheapest_chain": "base"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://gas-price-comparator.pdfextractapi.workers.dev/compare' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'

The catalog declares POST. 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/b3a10766f48b/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"b3a10766f48b"} 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 gas-price-comparator.pdfextractapi.workers.dev.