Artifact Inspector
PKCS#10 certificate signing request (CSR) inspector — parse requested identities and public-key metadata, calculate a fingerprint, and check the included self-signature without CA approval claims.
DataLiveeip155:8453Exactvia cdp
Csr-parserPkcs10Certificate-requestSignature-checkX509
Calls · 30d
2↑ 7.7%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$24.30
Verified settled volume
1,036 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-15 06:32Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
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.
0.005USDC≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0x8C12…Df1b2. The signed payment is good for 5 minutes.
- Paid to
- 0x8C12…Df1b2
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
5000units
on Polygon · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x8C12…Df1b2
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
5000units
on Arbitrum · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x8C12…Df1b2
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"pem": "-----BEGIN CERTIFICATE REQUEST-----\nMIIBCjCBvQIBADBGMSUwIwYDVQQKExx4NDAyQXRsYXMgU3ludGhldGljIEV4YW1w\nbGVzMR0wGwYDVQQDExRzZXJ2aWNlLmV4YW1wbGUudGVzdDAqMAUGAytlcAMhAHm1\nVi6P5lT5QHixEuipi6eQH4U65pW+1+DjkQutBJZkoEQwQgYJKoZIhvcNAQkOMTUw\nMzAxBgNVHREEKjAoghRzZXJ2aWNlLmV4YW1wbGUudGVzdIIQYXBpLmV4YW1wbGUu\ndGVzdDAFBgMrZXADQQBSNLlAOUHeVlbhnQE+VCg5pvxbKEdQYfLO4egstCTlMYDv\neA4dF/Bwz0dTGJt38ORmedOR1Z9gyoFAPWHaMr4M\n-----END CERTIFICATE REQUEST-----\n"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"csr": {
"sans": {
"uris": [],
"dns_names": [
"service.example.test",
"api.example.test"
],
"ip_addresses": [],
"email_addresses": []
},
"subject": "CN=service.example.test,O=x402Atlas Synthetic Examples",
"public_key": {
"bits": 256,
"algorithm": "Ed25519"
},
"subject_rdns": [
[
{
"oid": "2.5.4.10",
"name": "organizationName",
"value": "x402Atlas Synthetic Examples"
}
],
[
{
"oid": "2.5.4.3",
"name": "commonName",
"value": "service.example.test"
}
]
],
"signature_valid": true,
"fingerprint_sha256": "A0:99:82:7B:37:CA:52:40:D4:D1:C5:D9:17:DB:70:47:AA:DE:D7:64:CA:48:5E:26:6A:7C:A1:4D:AC:46:87:AA",
"signature_algorithm": "Ed25519",
"requested_extensions": [
{
"oid": "2.5.29.17",
"critical": false
}
]
},
"warnings": [
"A valid CSR self-signature proves only internal possession of the included key, not identity, trust, CA approval, or certificate issuance."
],
"operation": "csr-inspect",
"algorithm_version": "pkcs10-csr-inspect-v1"
}
}
},
"tags": [
"csr-parser",
"pkcs10",
"certificate-request",
"signature-check",
"x509"
],
"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": [
"pem"
],
"properties": {
"pem": {
"type": "string",
"maxLength": 98304,
"minLength": 1,
"description": "Exactly one PEM CERTIFICATE REQUEST block; mutually exclusive with der_base64"
}
},
"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",
"required": [
"operation",
"algorithm_version",
"csr",
"warnings"
],
"properties": {
"csr": {
"type": "object",
"required": [
"fingerprint_sha256",
"subject",
"subject_rdns",
"sans",
"requested_extensions",
"public_key",
"signature_algorithm",
"signature_valid"
],
"properties": {
"sans": {
"type": "object",
"required": [
"dns_names",
"email_addresses",
"ip_addresses",
"uris"
],
"properties": {
"uris": {
"type": "array",
"items": {
"type": "string",
"description": "Normalized string value"
},
"maxItems": 256,
"description": "URI subject alternative names; never fetched"
},
"dns_names": {
"type": "array",
"items": {
"type": "string",
"description": "Normalized string value"
},
"maxItems": 256,
"description": "DNS subject alternative names"
},
"ip_addresses": {
"type": "array",
"items": {
"type": "string",
"description": "Normalized string value"
},
"maxItems": 256,
"description": "Canonical IP subject alternative names"
},
"email_addresses": {
"type": "array",
"items": {
"type": "string",
"description": "Normalized string value"
},
"maxItems": 256,
"description": "Email subject alternative names"
}
},
"description": "Caller-provided subject alternative names; URI values were not fetched",
"additionalProperties": false
},
"subject": {
"type": "string",
"description": "Printable requested subject distinguished name"
},
"public_key": {
"type": "object",
"required": [
"algorithm",
"bits"
],
"properties": {
"bits": {
"type": "integer",
"maximum": 16384,
"minimum": 0,
"description": "Public-key or curve bit size; zero only for an unsupported parsed type"
},
"algorithm": {
"type": "string",
"description": "Parsed public-key algorithm"
}
},
"description": "Included public-key algorithm and size",
"additionalProperties": false
},
"subject_rdns": {
"type": "array",
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"oid",
"name",
"value"
],
"properties": {
"oid": {
"type": "string",
"description": "Dotted-decimal attribute object identifier"
},
"name": {
"type": "string",
"description": "Known stable attribute name or unknown"
},
"value": {
"type": "string",
"description": "Printable attribute value"
}
},
"description": "One distinguished-name attribute",
"additionalProperties": false
},
"maxItems": 32,
"description": "One relative distinguished name set"
},
"maxItems": 128,
"description": "Ordered requested subject relative distinguished names"
},
"signature_valid": {
"type": "boolean",
"description": "Whether the CSR self-signature verifies under its included key; not an identity or approval result"
},
"fingerprint_sha256": {
"type": "string",
"pattern": "^([0-9A-F]{2}:){31}[0-9A-F]{2}$",
"description": "Colon-separated uppercase SHA-256 fingerprint of the exact DER bytes"
},
"signature_algorithm": {
"type": "string",
"description": "Parsed CSR self-signature algorithm name"
},
"requested_extensions": {
"type": "array",
"items": {
"type": "object",
"required": [
"oid",
"critical"
],
"properties": {
"oid": {
"type": "string",
"description": "Dotted-decimal extension object identifier"
},
"critical": {
"type": "boolean",
"description": "Whether the requested extension is marked critical"
}
},
"description": "One requested extension identifier without raw extension bytes",
"additionalProperties": false
},
"maxItems": 128,
"description": "Requested extension identifiers in deterministic OID order"
}
},
"description": "Normalized PKCS#10 request fields and included self-signature result",
"additionalProperties": false
},
"_atlas": {
"type": "object",
"required": [
"docs"
],
"properties": {
"docs": {
"type": "string",
"format": "uri",
"maxLength": 512,
"description": "Documentation URL for this bridge"
},
"related": {
"type": "array",
"items": {
"type": "object",
"required": [
"bridge",
"url",
"docs",
"summary"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"maxLength": 512,
"description": "Related route URL"
},
"docs": {
"type": "string",
"format": "uri",
"maxLength": 512,
"description": "Related bridge documentation URL"
},
"bridge": {
"type": "string",
"maxLength": 64,
"description": "Related bridge name"
},
"summary": {
"type": "string",
"maxLength": 256,
"description": "Short capability summary"
}
},
"description": "One related Atlas route",
"additionalProperties": false
},
"maxItems": 3,
"description": "Bounded related Atlas routes"
}
},
"description": "Atlas documentation and related-route metadata added after deployment",
"additionalProperties": false
},
"warnings": {
"type": "array",
"items": {
"type": "string",
"description": "Human-readable warning"
},
"maxItems": 8,
"description": "Trust and identity limitations"
},
"operation": {
"type": "string",
"const": "csr-inspect",
"description": "Stable operation name"
},
"algorithm_version": {
"type": "string",
"const": "pkcs10-csr-inspect-v1",
"description": "Pinned CSR inspection contract"
}
},
"additionalProperties": false
}
}
}
}
},
"category": "utilities"
}
}Provenance
- Seen in the source catalog
- 2026-09-15 06:32Z
- Last indexed by Roundhouse
- 2026-09-24 07:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-20 13:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 405
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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Artifact Inspector 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=Artifact%20Inspector' 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://artifact-inspector.use.x402atlas.com/csr, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.