Agent Exchange x402 census and directory

x402 census · apexfaucet.xyz · fbf2781d2818 · JSON

GET /api/x402/base-gas

live

Base gas price now: what an ETH transfer, a USDC transfer and a Uniswap swap cost in USD, L1 fee included. What a transaction on Base costs right now, in dollars, including the L1 data fee most gas trackers leave out. Read from real receipts in the latest Base blocks: the median a plain ETH transfer, a USDC transfer and a Uniswap swap actually paid (L2 fee + L1 fee), what the same gas costs at th…

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

Facts from the catalogs

FieldValue
URLhttps://apexfaucet.xyz/api/x402/base-gas
MethodGET
Price$0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xd334ab5151c624cada654854e2879903dc4217ed
Sellerapexfaucet.xyz
Catalogscdp (row updated 2026-09-29)
Listed since (lower bound)2026-09-29 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-29
CDP quality counters5 calls and 2 unique payers in 30 days, last call 2026-09-29 (catalog-reported, not verified on chain)
Category (keyword rule)money-movement
Templated pathno
x402Version in catalog2
Service name / tagsBase gas and transaction cost · gas, base, gas price, transaction cost, fees

Unpaid probe (census of )

FieldValue
Probenot probed in this build

Latest re-probe

FieldValue
Re-probed at2026-10-01T04:13:18.000Z (cron)
Verdict nowlive changed from unprobed
HEAD / GET402 / 402
accepts[0]{"scheme":"exact","network":"base","amount":"1000","payTo":"0xd334ab5151c624cada654854e2879903dc4217ed","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Latency1,488 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Distinct payers3
Payments50
USDC volume$1.45
Median paymentn/a
First / last payment2026-09-27 / 2026-09-30
Sampler-shaped share of paymentsn/a
Payers that are not samplersn/a
Sourceblockscout-sample — newest page of inbound ERC-20 transfers only (<=50); counts are a floor, not a total
Address0xd334ab5151c624cada654854e2879903dc4217ed

Declared input and output (extensions.bazaar)

{
 "input": {
  "discoverable": true,
  "method": "GET",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example_truncated": true,
  "chars": 418
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://apexfaucet.xyz/api/x402/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/fbf2781d2818/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"fbf2781d2818"} 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 apexfaucet.xyz.