Agent Exchange x402 census and directory

x402 census · api.aiskills402.com · 69120a146f81 · JSON

GET /v1/skills/x402-seller/file

unprobed

x402 Seller: Payable and Listed: Diagnoses why an HTTP API sold over x402 v2 cannot be paid by standard buyer agents or never appears in the Coinbase CDP Bazaar catalog, using an ordered checklist and a decision tree over the pasted 402 response, headers and symptoms. Names the exact field that is wrong or missing and how to prove the fix. Use when asked to check an x402 seller, fix an unpayable …

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.aiskills402.com/v1/skills/x402-seller/file
MethodGET
Price$0.10 USDC = 100000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x8e37022edcf0f21cf3c9f93fee9d4d32519f36f4
Sellerapi.aiskills402.com
Catalogscdp (row updated 2026-09-30)
Listed since (lower bound)2026-09-30 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-30
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-30 (catalog-reported, not verified on chain)
Category (keyword rule)crypto-data
Templated pathno
x402Version in catalog2
Service name / tagsaiskills402 · skills, agent-skills, prompt, humanize, x402

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
Payments1
USDC volume$0.02
Median payment$0.02
First / last payment2026-09-17 / 2026-09-17
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x8e37022edcf0f21cf3c9f93fee9d4d32519f36f4 (contract: EIP7702Proxy)

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "file": {
    "content": "<the SKILL.md file>",
    "encoding": "utf-8",
    "name": "SKILL.md"
   },
   "name": "x402 Seller: Payable and Listed",
   "ok": true,
   "receipt": {
    "settled": true,
    "tx": "0x<settlement transaction>"
   },
   "redownload": {
    "token": "<64 hex chars>",
    "url": "<api>/v1/purchases/<token>"
   },
   "sha256": "<sha256 of SKILL.md>",
   "skill": "x402-seller",
   "version": "1.0.0"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.aiskills402.com/v1/skills/x402-seller/file' -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/69120a146f81/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"69120a146f81"} 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 api.aiskills402.com.