Agent Exchange x402 census and directory

Every x402 resource listed in the CDP Bazaar and PayAI catalogs (78,367 on 3,763 hosts as of 2026-10-25) probed unpaid: 79.5% answer a valid 402; dead listings, 402 shapes, price matches and on-chain settlement facts per seller. Free JSON, MCP and feeds; three paid x402 routes.

Paid verification

How it works

No sponsored paid call yet.

Pay this endpoint once from your own wallet (Base USDC, up to $1.00) and we call it and record what came back. Your wallet pays the listed recipient directly; Agent Tools never holds funds. Sponsored checks prove delivery; they do not count as demand.

Quality grade

How grading works

A 73.4 / 100

Availability 20.0 / 20

Endpoint responded (HTTP 402)

Payability 15.0 / 15

✓ Answers a real HTTP 402 challenge
✓ Publishes a /.well-known/x402 descriptor
✓ Payment address on record
✓ Settlement network declared
✓ Price declared

Demand 16.5 / 35

217 distinct payers, 1524 USDC transfers in the last 30 days; the wallet is shared by 11 listings, so each is credited 1/11

Performance 9.8 / 10

Last probe answered in 239 ms (full marks at 200 ms or less)

Readiness 12.1 / 15

Agent readiness 81/100

Owner verified 0.0 / 5

Nobody has claimed this listing yet

Endpoint last checked 19 h ago. On-chain activity last read 3 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass. This grade sets search order and leaderboards; the readiness score below is shown for reference only.

x402 readiness

B · 81/100

Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here A, 73.4/100), which weighs availability, payability and on-chain demand. How the two differ

Valid payment requirements	10/10	Payment requirements carry a payee, a mainnet network and a price.
Live 402 challenge	25/25	Paid endpoint answers with an HTTP 402 challenge (239 ms).
x402 version	n/a	x402 version not observed yet.
Signed descriptor	n/a	No x402 standard defines a signed descriptor.
Uptime (30 days)	5.5/15	11/30 probes succeeded over 30 days (37%).
Resource declaration	10/10	Declares 7 paid resource(s).
Verified identity	5/10	Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
Freshness + modern flags	5/5	seen in a source within 7 days; declares x402.
Security declaration	n/a	Payment is the access control for an x402 resource.

Applicable criteria total 75 points, scaled to 100.

Responsiveness: Responsive (239 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).

Payment evidence: x402_challenge — We sent a request and got a live HTTP 402 challenge. Also: x402_manifest. Qualifies the payment claim; adds no points.

Measured 2026-11-11.

Nine criteria, the same as the A2A readiness score, read from our daily probe of the paid endpoint, its payment requirements and 30-day probe history. Signed descriptor and security declaration are n/a for x402 (payment is the access control), as is an x402 version we have not observed; the remaining points are scaled to 100. Grades: A>=90, B>=75, C>=60, D>=40, F<40. It also feeds 15 points of the x402 quality grade.

Compared with peers

Against 10,082 reachable x402 APIs in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.

Readiness: Higher than 58% of peers; This listing 81 · peer median 78
Latency: Faster than 44% of peers; This listing 239 ms · peer median 205 ms

Where it loses the most points, and how to win them back

Uptime (30 days) −9.5 — Stay reachable in our daily probes.
Now: 11/30 probes succeeded over 30 days (37%).
Verified identity −5 — Claim the listing and prove control of its domain.
Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.

How many agent tools actually work · All statistics

Paid endpoints

7 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.

POST https://bazaar.agentexchange.work/listings $1.0000 / call

List your x402 endpoint for 30 days: 5,165 agents a week ask this router what to pay for, and listed routes are the answers it returns in best.json, the MCP and llms.txt. $1.00 USDC on Base. Body: { url, name (<=80), description? (<=200), payTo? }. No account, no review: free hosts (workers.dev, ver

POST https://bazaar.agentexchange.work/featured $1.0000 / call

Pay 1.00 USDC on Base to place one resource at the top of https://bazaar.agentexchange.work/ and https://bazaar.agentexchange.work/search for 30 days, labelled featured. Body: { id } (12-hex census id, /search.json?q=) or { url } (any https URL you own; no census entry needed, live at once). The pay

GET https://bazaar.agentexchange.work/r/{id}/probe.json $0.0100 / call

Pay $0.01 USDC on Base for an on-demand unpaid probe (HEAD then GET, 8 s timeout) of one listed resource right now: statuses, whether it answers a valid 402, the 402 shape (accepts[0] scheme/network/amount/payTo/asset, x402Version, header or body channel, bazaar extension), whether the live price ma

GET https://bazaar.agentexchange.work/seller/{host}/report.json $0.0500 / call

Pay $0.05 USDC on Base for a full report on one seller host right now: up to 18 of its listed resources re-probed unpaid (HEAD then GET) with their 402 shapes and price matches, its /.well-known/x402 manifest re-fetched, discovery-file presence, catalogs, price range, on-chain settlement facts per p

POST https://bazaar.agentexchange.work/bundle $3.0000 / call

Pay 3.00 USDC on Base for 30 days of: found (listed on https://bazaar.agentexchange.work/listings and every store discovery file, and featured at the top of https://bazaar.agentexchange.work/), verified (your URL probed now and a live x402 badge at /bundle/<id>.svg), monitored (your URL probed unpai

GET https://bazaar.agentexchange.work/site/{domain}.json $0.0100 / call

Pay 0.01 USDC on Base for one website's measured AI readiness: the robots.txt verdict for 20 AI and search crawlers (GPTBot, ClaudeBot, PerplexityBot, Google-Extended, CCBot, Bytespider, Applebot-Extended, Amazonbot, meta-externalagent and more: allowed, partial or blocked), whether it publishes llm

GET https://bazaar.agentexchange.work/dataset.json $500.0000 / call

Pay 500.00 USDC on Base for the full measured x402 economy in one JSON file: every seller host with its resources (url, method, price, status), live/dead counts, price range, categories, catalogs, on-chain earnings per payment wallet (payers, payments, settled USD, first and last payment) and catalo

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -sS -i -X GET https://bazaar.agentexchange.work/dataset.json  # expect HTTP 402 Payment Required (about 0.01 USDC/call)

/.well-known/x402.json

https://bazaar.agentexchange.work/.well-known/x402

Listed in

Directories this entry was found in.

a2a since 2026-06-04 submission since 2026-10-21