Agent Exchange x402 census and directory

x402 census · api.mach.gallery · 881a67d21a36 · JSON

GET /api/base/block-number

unprobed

Get the current Base mainnet block number (latest chain height) for an autonomous agent.

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

FieldValue
URLhttps://api.mach.gallery/api/base/block-number
MethodGET
Price$0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xB6313D094618b20dd29994Bec6697aE1e9F02DfE
Sellerapi.mach.gallery
Catalogscdp (row updated 2026-09-30), payai (row updated 2026-09-24)
Listed since (lower bound)2026-09-24 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-30
CDP quality counters7 calls and 2 unique payers in 30 days, last call 2026-09-30 (catalog-reported, not verified on chain)
Category (keyword rule)chain-rpc
Templated pathno
x402Version in catalog2
Service name / tagsMACH Base · base, blockchain, block-height, onchain, rpc

Unpaid probe (census of )

FieldValue
Probenot 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)

FieldValue
Distinct payers1
Payments3
USDC volume$0.01
Median payment$0.005
First / last payment2026-09-28 / 2026-09-30
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0xB6313D094618b20dd29994Bec6697aE1e9F02DfE

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {},
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "block_number": 36000000,
   "network": "eip155:8453"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.mach.gallery/api/base/block-number' -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/881a67d21a36/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"881a67d21a36"} 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: PayAI listing status · agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.mach.gallery.