Agent Exchange x402 census and directory

x402 census · gas.apitoll.cloud · cfbbec38953f · JSON

GET /v1/base/gas

live

Base gas oracle / gas price API for AI agents and bots — get the gas price for a transaction on Base in one x402 call. Real-time slow/standard/fast EIP-1559 fee tiers from a live eth_feeHistory call, returned as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei — plug straight into a viem/ethers transaction, no gwei conversion. Plus base fee, head block, and network fullness. Call it before ever…

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

Facts from the catalogs

FieldValue
URLhttps://gas.apitoll.cloud/v1/base/gas
MethodGET
Price$0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xcc69d619E6053F88A4845066518f465bD06Fc96c
Sellergas.apitoll.cloud
Catalogscdp (row updated 2026-09-26)
Listed since (lower bound)2026-09-26 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-26
CDP quality counters17 calls and 15 unique payers in 30 days, last call 2026-09-26 (catalog-reported, not verified on chain)
Category (keyword rule)crypto-data
Templated pathno
x402Version in catalog2
Service name / tagsApiToll Base Gas Oracle · base, gas, gas-oracle, gas-price, transaction-fees

Unpaid probe (census of 2026-09-30)

FieldValue
Probed at2026-09-30T23:12:15.218Z
HEAD405
GET402
Verdictlive live: valid 402 to an unpaid GET
402 carried inheader
x402Version in the 4022
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"1000","payTo":"0xcc69d619E6053F88A4845066518f465bD06Fc96c","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Live payTo equals catalog payToyes
extensions.bazaar in the 402yes
PAYMENT-REQUIRED headeryes
WWW-Authenticate offernone
Content type / server / CORSapplication/json / nginx/1.24.0 (Ubuntu) / none
Latency5,531 ms
ErrorPayment 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)

FieldValue
Distinct payers28
Payments83
USDC volume$0.09
Median payment$0.001
First / last payment2026-05-30 / 2026-09-30
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0xcc69d619E6053F88A4845066518f465bD06Fc96c

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "blocks": 20
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example_truncated": true,
  "chars": 574
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://gas.apitoll.cloud/v1/base/gas' -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/cfbbec38953f/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"cfbbec38953f"} 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.apitoll.cloud.