x402 Batch Audit
Audit a whole set of captured 402 challenges in one call. Per challenge it reports whether a payment can be constructed, which blocking defects stand in the way, whether the resource is bound to the URL it came from, the cheapest accepted amount and the networks offered. A challenge supplied without its URL has its binding reported as unchecked rather than assumed sound. Nothing is paid.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.12 USDC on Base to 0x25e8…a9608. The signed payment is good for 1 minute.
- Paid to
- 0x25e8…a9608
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 120000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
"amount": "120000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"challenges": [
{
"url": "https://api.merchant.test/v1/score",
"challenge": {
"accepts": [
{
"asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"payTo": "0xa1b2c30000000000000000000000000000009f8e",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453"
}
],
"resource": {
"url": "https://api.merchant.test/v1/score",
"mimeType": "application/json",
"description": "Paid resource at https://api.merchant.test/v1/score"
},
"extensions": {
"bazaar": {
"schema": {
"properties": {
"input": {
"type": "object"
},
"output": {
"type": "object"
}
}
}
}
},
"x402Version": 2
}
},
{
"url": "https://api.merchant.test/v1/enrich",
"challenge": {
"accepts": [
{
"asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"payTo": "0xa1b2c30000000000000000000000000000009f8e",
"amount": "12000",
"scheme": "exact",
"network": "eip155:8453"
}
],
"resource": {
"url": "https://api.merchant.test/v1/enrich",
"mimeType": "application/json",
"description": "Paid resource at https://api.merchant.test/v1/enrich"
},
"extensions": {
"bazaar": {
"schema": {
"properties": {
"input": {
"type": "object"
},
"output": {
"type": "object"
}
}
}
}
},
"x402Version": 2
}
},
{
"url": "https://api.merchant.test/v1/legacy",
"challenge": {
"accepts": [
{
"asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"payTo": "0xa1b2c30000000000000000000000000000009f8e",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453"
}
],
"resource": {
"url": "https://api.merchant.test/v1/legacy",
"mimeType": "application/json",
"description": "Paid resource at https://api.merchant.test/v1/legacy"
},
"extensions": {
"bazaar": {
"schema": {
"properties": {
"input": {
"type": "object"
},
"output": {
"type": "object"
}
}
}
}
},
"x402Version": 2
}
},
{
"url": "https://api.merchant.test/v1/misbound",
"challenge": {
"accepts": [
{
"asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"payTo": "0xa1b2c30000000000000000000000000000009f8e",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453"
}
],
"resource": {
"url": "https://api.merchant.test/v1/score",
"mimeType": "application/json",
"description": "Paid resource at https://api.merchant.test/v1/score"
},
"extensions": {
"bazaar": {
"schema": {
"properties": {
"input": {
"type": "object"
},
"output": {
"type": "object"
}
}
}
}
},
"x402Version": 2
}
},
{
"url": "https://api.merchant.test/v1/broken",
"challenge": {
"accepts": [],
"resource": {
"url": "https://api.merchant.test/v1/broken",
"mimeType": "application/json",
"description": "Paid resource at https://api.merchant.test/v1/broken"
},
"extensions": {
"bazaar": {
"schema": {
"properties": {
"input": {
"type": "object"
},
"output": {
"type": "object"
}
}
}
}
},
"x402Version": 2
}
},
{
"accepts": [
{
"asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"payTo": "0xa1b2c30000000000000000000000000000009f8e",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453"
}
],
"resource": {
"url": "https://api.merchant.test/v1/bare",
"mimeType": "application/json",
"description": "Paid resource at https://api.merchant.test/v1/bare"
},
"extensions": {
"bazaar": {
"schema": {
"properties": {
"input": {
"type": "object"
},
"output": {
"type": "object"
}
}
}
}
},
"x402Version": 2
}
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"limits": {
"maxAssets": 100,
"maxAccepts": 20,
"maxFindings": 500,
"maxNetworks": 50,
"maxResources": 500,
"maxChallenges": 200
},
"passed": false,
"complete": false,
"findings": [
{
"code": "RESOURCE_NOT_BOUND_TO_ENDPOINT",
"detail": "https://api.merchant.test/v1/misbound names https://api.merchant.test/v1/score but was served from https://api.merchant.test/v1/misbound.",
"severity": "blocking",
"challenge": 3
},
{
"code": "NO_ACCEPTED_PAYMENTS",
"detail": "https://api.merchant.test/v1/broken: NO_ACCEPTED_PAYMENTS prevents a payment being constructed.",
"resource": "https://api.merchant.test/v1/broken",
"severity": "blocking",
"challenge": 4
}
],
"challenges": [
{
"index": 0,
"label": "https://api.merchant.test/v1/score",
"version": 2,
"networks": [
"eip155:8453"
],
"payable_now": true,
"accept_count": 1,
"resource_url": "https://api.merchant.test/v1/score",
"resource_bound": true,
"cheapest_amount": "5000",
"blocking_warnings": []
},
{
"index": 1,
"label": "https://api.merchant.test/v1/enrich",
"version": 2,
"networks": [
"eip155:8453"
],
"payable_now": true,
"accept_count": 1,
"resource_url": "https://api.merchant.test/v1/enrich",
"resource_bound": true,
"cheapest_amount": "12000",
"blocking_warnings": []
},
{
"index": 2,
"label": "https://api.merchant.test/v1/legacy",
"version": 2,
"networks": [
"eip155:8453"
],
"payable_now": true,
"accept_count": 1,
"resource_url": "https://api.merchant.test/v1/legacy",
"resource_bound": true,
"cheapest_amount": "2000",
"blocking_warnings": []
}
],
"request_id": "example-request",
"service_id": "x402_challenge_batch_audit",
"all_payable": false,
"assumptions": [
"Nothing is fetched and nothing is paid. The caller supplies challenges they already captured, which is what makes an arbitrary endpoint auditable at all.",
"A challenge supplied as an object with a url is checked against that url for resource binding; one supplied as a bare body is not, and that is reported."
],
"limitations": [
"Conformance of the challenges supplied. Whether each endpoint honours its challenge is not knowable without paying, which this never does.",
"all_payable is true only when every challenge decoded, every binding that could be checked was checked, and nothing blocking was found."
],
"observed_at": "2026-10-02T00:00:00.000Z",
"not_examined": [
"RESOURCE_BINDING_NOT_CHECKED: challenges[5] was supplied without the URL it came from, so its resource binding was not checked."
],
"payment_sent": false,
"finding_count": 2,
"payable_count": 4,
"service_version": "1.0.0",
"unpayable_count": 2,
"findings_by_code": {
"NO_ACCEPTED_PAYMENTS": 1,
"RESOURCE_NOT_BOUND_TO_ENDPOINT": 1
},
"decoded_challenge_count": 6,
"supplied_challenge_count": 6
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"challenges"
],
"properties": {
"challenges": {
"type": "array",
"items": {},
"maxItems": 200,
"minItems": 1
},
"check_binding": {
"type": "boolean"
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-04 08:06Z
- Last indexed by Roundhouse
- 2026-10-05 00:20Z
- Last enriched (probe, favicon, geo)
- 2026-10-04 11:15Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 0
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service x402 Batch Audit and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=x402%20Batch%20Audit' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.zfinia.com/x402/v1/x402-challenge-batch-audit, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.