Agent Exchange x402 census and directory

x402 census · apexfaucet.xyz · c60de2971919 · JSON

POST /api/x402/arc-passport

live

An ERC-8004 identity on Arc for the agent that pays: we host a correct registration file, mint the identity and hand it to the paying wallet. POST JSON {name, description, image?, services?[{name, endpoint}]}.

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/arc-passport
MethodPOST
Price$0.99 USDC = 990000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base); also accepts eip155:5042
payTo0xd334ab5151c624cada654854e2879903dc4217ed
Sellerapexfaucet.xyz
Catalogscdp (row updated 2026-09-27)
Listed since (lower bound)2026-09-27 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-27
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-27 (catalog-reported, not verified on chain)
Category (keyword rule)dev-tools/utilities
Templated pathno
x402Version in catalog2
Service name / tagsAPEX Arc agent passport · arc, erc-8004, agent identity, agent registration, ai agents

Unpaid probe (census of )

FieldValue
Probenot probed in this build

Latest re-probe

FieldValue
Re-probed at2026-10-01T18:13:42.000Z (cron)
Verdict nowlive changed from unprobed
HEAD / GET405 / 402
accepts[0]{"scheme":"exact","network":"base","amount":"990000","payTo":"0xd334ab5151c624cada654854e2879903dc4217ed","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Latency692 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": {
  "body": {
   "description": "What the agent does, in a sentence or two.",
   "name": "My Agent",
   "services": [
    {
     "endpoint": "https://example.com/.well-known/agent-card.json",
     "name": "A2A"
    }
   ]
  },
  "bodyType": "json",
  "discoverable": true,
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "data": {},
   "ok": true,
   "paid": 0.99
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://apexfaucet.xyz/api/x402/arc-passport' -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/c60de2971919/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c60de2971919"} 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.