Agent Exchange x402 census and directory

x402 census · agent402.tools · 782802caba32 · JSON

POST /api/skill/search-and-cite

live

Bundled execution of the Answer-a-question with sources workflow - The 'research a question, return an answer with citations' workflow. Brave answer for the AI-synthesized take with citations, Brave web for the canonical SERP, Brave news for time-sensitive context, then a deterministic web-fetch + extract pass on the top citations to verify the answer hasn't hallucinated. Five tools, one cited pa…

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

Facts from the catalogs

FieldValue
URLhttps://agent402.tools/api/skill/search-and-cite
MethodPOST
Price$0.12 USDC = 119000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base); also accepts eip155:137, eip155:42161, eip155:143, eip155:43114, eip155:1329, eip155:10, eip155:4663, eip155:42220, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, stellar:pubnet, algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=
payTo0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
Selleragent402.tools
Catalogscdp (row updated 2026-09-22), payai (row updated 2026-07-01)
Listed since (lower bound)2026-07-01 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-22
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-22 (catalog-reported, not verified on chain)
Category (keyword rule)web-search
Templated pathno
x402Version in catalog2
Service name / tagsSkill: Answer-a-question with · skill-pack, workflow, search-and-cite, agents, x402

Unpaid probe (census of 2026-09-30)

FieldValue
Probed at2026-09-30T23:53:13.062Z
HEAD402
GET402
Verdictlive live: valid 402 to an unpaid GET
402 carried inbody
x402Version in the 4022
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"101000","payTo":"0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceno (live 101000 vs catalog 119000)
Live payTo equals catalog payToyes
extensions.bazaar in the 402yes
PAYMENT-REQUIRED headerno
WWW-Authenticate offerPayment id="Mg2omJJ6QfEwgzAqpvLbjBVFfXY3
Content type / server / CORSapplication/json / railway-hikari / *
Latency1,567 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 payers120
Payments1,253
USDC volume$12.29
Median payment$0.003
First / last payment2026-06-18 / 2026-09-30
Sampler-shaped share of payments61.8%
Payers that are not samplers2
Sourceforensics-2026-09-30
Address0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0 (contract: EIP7702StatelessDeleGator)

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "question": "What is the Sahm Rule and has it triggered recently?"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "args": {
    "question": "What is the Sahm Rule and has it triggered recently?"
   },
   "pack": "search-and-cite",
   "steps": [
    {
     "ok": true,
     "result": {},
     "slug": "answer"
    },
    {
     "ok": true,
     "result": {},
     "slug": "search"
    },
    {
     "ok": true,
     "result": {},
     "slug": "search-news"
    },
    {
     "ok": true,
     "result": {},
     "slug": "extract"
    },
    {
     "ok": true,
     "result": {},
     "slug": "extract-entities"
    }
   ],
   "summary": "5/5 steps succeeded"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://agent402.tools/api/skill/search-and-cite' -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/782802caba32/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"782802caba32"} 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 agent402.tools.