x402-paid-service.iholt.workers.dev

Discovery tier — generic paid API call

Paid verification

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

B+ 66.6 / 100

Availability 20.0 / 20

Endpoint responded (HTTP 200)

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 10.1 / 35

11 distinct payers, 37 USDC transfers in the last 30 days; the wallet is shared by 2 listings, so each is credited 1/2

Performance 9.3 / 10

Last probe answered in 324 ms (full marks at 200 ms or less)

Readiness 12.2 / 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 B+, 66.6/100), 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	20/25	Endpoint reachable; its 402 challenge was seen earlier (324 ms).
x402 version	n/a	x402 version not observed yet.
Signed descriptor	n/a	No x402 standard defines a signed descriptor.
Uptime (30 days)	15/15	32/32 probes succeeded over 30 days (100%).
Resource declaration	10/10	Declares 11 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	1/5	not seen in a source for over 30 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 (324 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, bazaar_feed, catalog_listing. 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 60% of peers; This listing 81 · peer median 78
Latency: Faster than 33% of peers; This listing 324 ms · peer median 205 ms

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

Live 402 challenge −5 — Answer the paid path with a valid 402 challenge.
Now: Endpoint reachable; its 402 challenge was seen earlier (324 ms).
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.
Freshness + modern flags −4 — Keep the listing current in the registry or source it comes from.
Now: not seen in a source for over 30 days; declares x402.

How many agent tools actually work · All statistics

Paid endpoints

11 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://x402-paid-service.iholt.workers.dev/api/execute

x402 settlement smoke test + RTPTPA-QCG control_spec. One-cent Base USDC call returns attested NV-center arbitration (relative-tensor power-tower). Keywords: x402 test, rtpTPA, quantum control genesis, micropayment, penny call.

POST https://x402-paid-service.iholt.workers.dev/api/markets

On-chain market snapshot billed per call in USDC — pool/ticker style quotes for agents that need a cheap Dex-adjacent read without a data-vendor key. Keywords: market data, ticker, pool quote, dex, price feed, agent market, micropayment.

POST https://x402-paid-service.iholt.workers.dev/api/postman

Postman collection / HTTP fixture runner billed per call in USDC — agents pay to execute a stored request collection without a Postman account. Keywords: postman, http collection, api test, fixture runner, agent qa, pay per run.

POST https://x402-paid-service.iholt.workers.dev/api/attest

Agent Trust quick attestation billed per call in USDC — probe any endpoint for liveness, https, latency, and a parsed x402 402 payment rail (scheme, network, price), returned as a structured A–D graded attestation. No API key, no account. Keywords: agent trust, endpoint attestation, x402 verificatio

POST https://x402-paid-service.iholt.workers.dev/api/attest-audit

Agent Trust full audit billed per call in USDC — deep endpoint attestation: repeated liveness probes with latency-consistency drift checks, response-shape verification, and full x402 payment-rail decomposition (scheme, network, asset, payTo, price). Structured A–D graded attestation for agent procur

POST https://x402-paid-service.iholt.workers.dev/api/pro

Pro metered API access — authenticated agent-to-agent execution with per-call USDC billing on Base and Polygon. No account, no API key, no subscription. Keywords: paid api, metered access, pay per request, agent api, premium endpoint, usdc billing.

POST https://x402-paid-service.iholt.workers.dev/api/inference

AI inference execution billed per call in USDC — run model workloads without an inference-provider account or key. Settles on Base via EIP-3009. Keywords: ai inference, llm api, model execution, gpu compute, pay per inference, agent inference, no api key.

POST https://x402-paid-service.iholt.workers.dev/api/specialized

Specialized dataset and enrichment access billed per query in USDC — high-value structured data for agents, no subscription or contract. Keywords: data api, dataset access, enrichment, structured data, market data, research data, pay per query.

POST https://x402-paid-service.iholt.workers.dev/api/founders

Genesis Conductor Founders License — full commercial license purchasable entirely agent-to-agent, settled in USDC on Base with no sales call or contract negotiation. Includes fulfillment. Keywords: software license, commercial license, founders tier, agent checkout, autonomous purchase, b2b licensin

POST https://x402-paid-service.iholt.workers.dev/api/source-exclusive

Genesis Conductor Source Exclusive — exclusive source rights to one plugin, sold once, settled agent-to-agent in USDC on Base. Highest tier, includes transfer and fulfillment. Keywords: exclusive rights, source code license, exclusivity, buyout, agent commerce, high value checkout.

POST https://x402-paid-service.iholt.workers.dev/api/sponsor-userop

ERC-4337 v0.6 UserOp sponsorship quote billed in USDC on Base. Worker never signs and never broadcasts; EntryPoint deposit is capped (default 0.05 ETH). Keywords: paymaster, erc-4337, userop, gas sponsorship, account abstraction, usdc gas.

How to call

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

curl -sS -i -X GET https://x402-paid-service.iholt.workers.dev  # expect HTTP 402 Payment Required (about 0.01 USDC/call)

/.well-known/x402.json

https://x402-paid-service.iholt.workers.dev/.well-known/x402

Listed in

Directories this entry was found in.

cdp-bazaar since 2026-07-20 paygent-discover since 2026-07-20 x402 since 2026-10-08