Artifact Inspector
X.509 TLS/SSL certificate inspector — parse fields and SANs, calculate a SHA-256 fingerprint, and check hostname and time validity without trust or revocation claims.
OtherLiveeip155:8453Exactvia cdp
X509-certificateTls-certificateCertificate-fingerprintHostname-matchRfc5280
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-----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\no9Lkli6ywIh515laMt/OM2lhcH6qFDZ1prqZDg==\n-----END CERTIFICATE-----\n",
"at_time": "2024-06-01T12:00:00Z",
"hostname": "api.example.test"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"at_time": "2024-06-01T12:00:00Z",
"hostname": "api.example.test",
"warnings": [
"Parsed structure, validity dates, and hostname comparison do not establish certificate trust, revocation status, key possession, identity, or suitability."
],
"operation": "certificate-inspect",
"certificate": {
"sans": {
"uris": [],
"dns_names": [
"api.example.test",
"www.example.test"
],
"ip_addresses": [],
"email_addresses": []
},
"issuer": "CN=api.example.test,O=x402Atlas Synthetic Examples",
"subject": "CN=api.example.test,O=x402Atlas Synthetic Examples",
"key_usage": [
"digital_signature"
],
"not_after": "2034-01-01T00:00:00Z",
"not_before": "2024-01-01T00:00:00Z",
"public_key": {
"bits": 256,
"algorithm": "Ed25519"
},
"serial_hex": "402",
"constraints": {
"is_ca": false,
"max_path_length": -1,
"max_path_length_zero": false,
"basic_constraints_valid": true
},
"issuer_rdns": [
[
{
"oid": "2.5.4.10",
"name": "organizationName",
"value": "x402Atlas Synthetic Examples"
}
],
[
{
"oid": "2.5.4.3",
"name": "commonName",
"value": "api.example.test"
}
]
],
"subject_rdns": [
[
{
"oid": "2.5.4.10",
"name": "organizationName",
"value": "x402Atlas Synthetic Examples"
}
],
[
{
"oid": "2.5.4.3",
"name": "commonName",
"value": "api.example.test"
}
]
],
"extended_key_usage": [
"server_auth"
],
"fingerprint_sha256": "17:D4:EE:92:E7:8A:61:99:72:9B:A2:F6:27:61:B0:20:ED:29:6A:1F:28:BD:BC:CC:07:35:4E:B2:EC:B9:BC:7D",
"signature_algorithm": "Ed25519"
},
"time_status": "currently_valid",
"hostname_matches": true,
"algorithm_version": "x509-certificate-inspect-v1",
"hostname_evaluated": true
}
}
},
"tags": [
"x509-certificate",
"tls-certificate",
"certificate-fingerprint",
"hostname-match",
"rfc5280"
],
"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",
"at_time",
"hostname"
],
"properties": {
"pem": {
"type": "string",
"maxLength": 98304,
"minLength": 1,
"description": "Exactly one PEM CERTIFICATE block; mutually exclusive with der_base64"
},
"at_time": {
"type": "string",
"format": "date-time",
"description": "Required fixed RFC3339 instant used only for validity comparison"
},
"hostname": {
"type": "string",
"maxLength": 253,
"minLength": 1,
"description": "Optional hostname for the standard certificate name matcher"
}
},
"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",
"at_time",
"hostname_evaluated",
"hostname",
"hostname_matches",
"time_status",
"certificate",
"warnings"
],
"properties": {
"_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
},
"at_time": {
"type": "string",
"format": "date-time",
"description": "Applied validity comparison instant"
},
"hostname": {
"type": "string",
"description": "Compared hostname, empty when not requested"
},
"warnings": {
"type": "array",
"items": {
"type": "string",
"description": "Human-readable warning"
},
"maxItems": 8,
"description": "Trust and parsing limitations; never certificate trust conclusions"
},
"operation": {
"type": "string",
"const": "certificate-inspect",
"description": "Stable operation name"
},
"certificate": {
"type": "object",
"required": [
"fingerprint_sha256",
"serial_hex",
"subject",
"subject_rdns",
"issuer",
"issuer_rdns",
"not_before",
"not_after",
"sans",
"key_usage",
"extended_key_usage",
"public_key",
"signature_algorithm",
"constraints"
],
"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
},
"issuer": {
"type": "string",
"description": "Printable issuer distinguished name"
},
"subject": {
"type": "string",
"description": "Printable subject distinguished name"
},
"key_usage": {
"type": "array",
"items": {
"type": "string",
"description": "Normalized string value"
},
"maxItems": 9,
"description": "Normalized RFC 5280 key usage names"
},
"not_after": {
"type": "string",
"format": "date-time",
"description": "Certificate validity upper bound"
},
"not_before": {
"type": "string",
"format": "date-time",
"description": "Certificate validity lower bound"
},
"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
},
"serial_hex": {
"type": "string",
"description": "Certificate serial number in uppercase hexadecimal"
},
"constraints": {
"type": "object",
"required": [
"basic_constraints_valid",
"is_ca",
"max_path_length",
"max_path_length_zero"
],
"properties": {
"is_ca": {
"type": "boolean",
"description": "Certificate CA bit; not a trust result"
},
"max_path_length": {
"type": "integer",
"minimum": -1,
"description": "Parsed path length, often -1 when absent"
},
"max_path_length_zero": {
"type": "boolean",
"description": "Whether an explicit zero path length was present"
},
"basic_constraints_valid": {
"type": "boolean",
"description": "Whether a basic constraints extension was parsed"
}
},
"description": "Parsed basic constraints without path validation",
"additionalProperties": false
},
"issuer_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 issuer relative distinguished names"
},
"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 subject relative distinguished names"
},
"extended_key_usage": {
"type": "array",
"items": {
"type": "string",
"description": "Normalized string value"
},
"maxItems": 128,
"description": "Normalized extended key usages and unknown OIDs"
},
"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 certificate signature algorithm name"
}
},
"description": "Normalized RFC 5280 leaf certificate fields without a trust conclusion",
"additionalProperties": false
},
"time_status": {
"enum": [
"not_yet_valid",
"currently_valid",
"expired"
],
"type": "string",
"description": "Date-only status; not a trust decision"
},
"hostname_matches": {
"type": "boolean",
"description": "Standard name-matcher result; not a trust decision"
},
"algorithm_version": {
"type": "string",
"const": "x509-certificate-inspect-v1",
"description": "Pinned certificate inspection contract"
},
"hostname_evaluated": {
"type": "boolean",
"description": "Whether hostname comparison was requested"
}
},
"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/certificate, 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.