What the provider says
Call before paying an unfamiliar x402 endpoint, or to pick between providers. $0.02, usually <1 s plus one probe: live unpaid probe (status, latency, TLS, PAYMENT-REQUIRED decoded and sanity-checked), seller reputation from indexed on-chain USDC payments to its Base payTo (24 h/7 d count, distinct payers, total and median USD, top-payer share), Bazaar listing and price, and a looks legit/caution/avoid verdict citing each fact. Errors: 400/503 JSON {error}, not charged.
Quoted from x402 Bazaar
· source record
· read 2026-10-26
Facts and where they come from
- Price
-
0.02 USDC per call
Provider claim
Recorded value: 0.02 USDC per call.
- Unit
- per call
- Protocol
-
x402, REST
· transport: HTTP
Provider claim
- Auth
- x402
- Last checked
-
Not checked by us yet — the data is as the source published it
- First seen
- 2026-10-24
- Usage
-
4 calls
· 3 unique payers
in the 30 days before 2026-10-24.
Measured by the x402 Bazaar, not by us and not by the provider.
Payments and earnings
Verified earnings · 30d
Unknown
Measured days
0/30
Settled payments
—
Ledger computed
never
No settled payment on record. Earnings for this service are unknown — not zero.
The source counts 4 calls in 30 days, which at the
published price is roughly $0.08 of
activity. Activity is not revenue; no charge has been reconciled for it.
Payment rails
Base
· exact · USDC
0x8C8A81E2acEc6ed62421f1f4E7125B0b84FFffdE
0.02 USDC
From source record
A payment rail is where the provider asks to be paid. It is not proof that anything was paid
through it. See evidence levels.
Input and output, as published
Request
{
"discoverable": true,
"method": "GET",
"queryParams": {
"url": "https://tokencheck.402api.dev/v1/token-check"
},
"type": "http"
}
Response
{
"example": {
"bazaar": {
"catalogRefreshedAt": "2026-10-09T23:20:22.525Z",
"catalogSize": 34791,
"listed": true,
"listing": {
"amount": "5000",
"asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"calls30d": 4581,
"description": "Health check ping",
"firstSeenByIndexer": "2026-10-09T23:20:21.000Z",
"lastCalledAt": "2026-10-09T18:46:08.848Z",
"lastSeenByIndexer": "2026-10-09T23:20:21.000Z",
"lastUpdated": "2026-10-09T21:29:46.127Z",
"method": "GET",
"network": "eip155:8453",
"payTo": "0x589a2314a2e05f45e40c4823da3ba58d421db3d8",
"payers30d": 110,
"resource": "https://www.api-xpay.com/x402/ping",
"serviceName": "X Pay"
},
"listingsForPayTo": 14,
"otherListings": [
{
"calls30d": 4539,
"description": "Payment receipt with transaction details",
"resource": "https://www.api-xpay.com/x402/payment"
},
{
"calls30d": 4357,
"description": "Service status and payment configuration",
"resource": "https://www.api-xpay.com/x402/status"
}
]
},
"index": {
"indexedThroughBlock": 52401878,
"indexedThroughTime": "2026-10-10T00:45:03.000Z",
"payTosFullyBackfilled": 1494,
"payTosTracked": 1494
},
"measuredAt": "2026-10-10T00:45:31.943Z",
"notes": [
"Measured facts, not advice. Incoming USDC counts every transfer to the payTo, not only x402 settlements; distinct payers can still be one operator with many wallets."
],
"payTo": "0x589a2314a2e05f45e40c4823da3ba58d421db3d8",
"probe": {
"measuredAt": "2026-10-10T00:45:30.978Z",
"method": "GET",
"methodNote": "GET without payment",
"ms": 890,
"ok": true,
"status": 402,
"tls": {
"daysLeft": 61,
"issuer": "Let's Encrypt",
"ok": true,
"validTo": "2026-12-10T09:14:50.000Z"
},
"url": "https://www.api-xpay.com/x402/ping",
"x402": {
"accepts": [
{
"amountAtomic": "5000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x589a2314a2e05f45e40c4823da3ba58d421db3d8",
"problems": [],
"recognised": "USDC on Base",
"scheme": "exact",
"usd": 0.005
}
],
"description": "Health check ping",
"problems": [],
"resourceUrl": "https://www.api-xpay.com/x402/ping",
"source": "PAYMENT-REQUIRED header",
"valid": true,
"version": 2
}
},
"query": {
"payTo": null,
"url": "https://www.api-xpay.com/x402/ping"
},
"reasons": [
"Unpaid GET answered 402 with valid x402 v2 requirements (PAYMENT-REQUIRED header): $0.005 USDC on Base to 0x589a2314a2e05f45e40c4823da3ba58d421db3d8 in 890 ms.",
"Listed in the CDP Bazaar as \"X Pay\" (Bazaar reports 4,581 calls / 110 payers in 30 d).",
"20,049 USDC payment(s) from 137 distinct payer(s), $2,276.68 total, in the last 7 d."
],
"reputation": {
"firstPaymentSeen": "2026-10-03T00:45:15.000Z",
"indexed": true,
"indexedThroughBlock": 52401878,
"last24h": {
"complete": true,
"coveredSince": "2026-10-09T00:45:05.000Z",
"distinctPayers": 17,
"medianUsd": 0.005,
"payments": 1930,
"topPayerShare": 0.29,
"totalUsd": 409.22096
},
"last7d": {
"complete": true,
"coveredSince": "2026-10-03T00:45:05.000Z",
"distinctPayers": 137,
"medianUsd": 0.005,
"payments": 20049,
"topPayerShare": 0.073,
"totalUsd": 2276.67891
},
"method": "USDC Transfer events on Base whose recipient is this address, indexed continuously by 402api from eth_getLogs (every incoming USDC transfer counts, not only x402 settlements; amounts in USD at 1 USDC = $1)",
"payTo": "0x589a2314a2e05f45e40c4823da3ba58d421db3d8"
},
"verdict": "looks legit"
},
"type": "json"
}
Examples are the provider's own, not a call we made.
Provenance
One row per statement. “Verified” means we checked it ourselves and the finding is quoted.
“Provider claim” means we read it in the provider's own record. “Not found” is a statement about
our search, not proof of absence.
| Statement |
Status |
What we found |
Source |
Checked |
|
Endpoint
|
Provider claim |
https://tokencheck.402api.dev/v1/seller-check
Evidence
Als Resource-URL im Bazaar-Eintrag geführt.
|
api.cdp.coinbase.com
|
2026-10-26 |
|
Input output
|
Provider claim |
Request/response examples published with the listing
Evidence
Beispiel-Ein- und -Ausgabe stammen aus dem Bazaar-Eintrag des Anbieters.
|
api.cdp.coinbase.com
|
2026-10-26 |
|
Payment
|
Provider claim |
1 rail: Base · payee 0x8C8A81E2acEc6ed62421f1f4E7125B0b84FFffdE
Evidence
Aus den `accepts`-Einträgen: Netzwerk, Asset, Empfängeradresse und Betrag. Die Adresse ist die Grundlage der späteren On-Chain-Zuordnung; sie ist noch nicht durch eine eigene 402-Antwort bestätigt.
|
api.cdp.coinbase.com
|
2026-10-26 |
|
Pricing
|
Provider claim |
0.02 USDC per call
Evidence
Atomic amount 20000 = 0.02 USDC per call on Base. Netzwerk: Base.
|
api.cdp.coinbase.com
|
2026-10-26 |
|
Protocol
|
Provider claim |
x402 (HTTP 402 payment challenge)
Evidence
Im x402 Bazaar als zahlungspflichtige HTTP-Ressource gelistet (x402Version 2, Typ http).
|
api.cdp.coinbase.com
|
2026-10-26 |
|
Provider
|
Provider claim |
tokencheck.402api.dev
Evidence
Die Ressource wird unter diesem Host im x402 Bazaar geführt; die Angaben stammen vom Anbieter.
|
api.cdp.coinbase.com
|
2026-10-26 |
|
Usage
|
Verified |
4 calls / 3 unique payers in the last 30 days
Evidence
Source-reported usage from Coinbase x402 Bazaar, read on 2026-10-26. Letzter Aufruf laut Quelle: 2026-10-24T00:41:47.322Z. Aufrufe sind kein Umsatz.
|
api.cdp.coinbase.com
|
2026-10-26 |
Endpoint checks
We have not called this endpoint yet. Until we do, everything above is what the source
published — no more.
Tags