{ "x402Version": 2, "id": 3451, "slug": "3451", "resource": "https://artifact-inspector.use.x402atlas.com/jwk", "description": "JSON Web Key (JWK) inspector — validate bounded public RSA, EC, or Ed25519 keys and calculate RFC 7638 SHA-256 thumbprints without ownership or trust claims.", "type": "http", "accepts": [ { "scheme": "exact", "network": "eip155:8453", "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "5000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:137", "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2", "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359", "amount": "5000", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "eip155:42161", "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2", "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831", "amount": "5000", "maxTimeoutSeconds": 300 } ], "outputSchema": { "bazaar": { "category": "utilities", "info": { "input": { "body": { "jwk": { "alg": "RS256", "e": "AQAB", "key_ops": [ "verify" ], "kid": "2011-04-29", "kty": "RSA", "n": "0vx7agoebGcQSuuPiLJXZptN9nndrQmbXEps2aiAFbWhM78LhWx4cbbfAAtVT86zwu1RK7aPFFxuhDR1L6tSoc_BJECPebWKRXjBZCiFV4n3oknjhMstn64tZ_2W-5JsGY4Hc5n9yBXArwl93lqt7_RN5w6Cf0h4QyQ5v-65YGjQR0_FDW2QvzqY368QQMicAtaSqzs8KJZgnYb9c7d0zgdAZHzu6qMQvRL5hajrn1n91CbOpbISD08qNLyrdkt-bFTWhAI4vMQFh6WeZu0fM4lFd2NcRwr3XPksINHaQ-G_xBniIqbw0Ls1jF44-csFCur-kEgU8awapJzKnqDKgw", "use": "sig" } }, "bodyType": "json", "method": "POST", "type": "http" }, "output": { "example": { "algorithm_version": "rfc7638-public-jwk-inspect-v1", "key_count": 1, "keys": [ { "alg": "RS256", "bits": 2048, "curve": "", "key_ops": [ "verify" ], "kid": "2011-04-29", "kty": "RSA", "thumbprint_sha256": "NzbLsXh8uDCcd-6MNwXF4W_7noWXFZAfHkxZsRGC9Xs", "use": "sig", "warnings": [] } ], "kind": "single", "operation": "jwk-inspect", "warnings": [ "JWK metadata and thumbprints do not establish protocol suitability, key ownership, identity, or trust." ] }, "type": "json" } }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "body": { "additionalProperties": false, "properties": { "jwk": { "additionalProperties": false, "description": "One supported public signing JWK with no private material", "oneOf": [ { "not": { "anyOf": [ { "required": [ "crv" ] }, { "required": [ "x" ] }, { "required": [ "y" ] } ] }, "properties": { "kty": { "const": "RSA" } }, "required": [ "n", "e" ] }, { "not": { "anyOf": [ { "required": [ "n" ] }, { "required": [ "e" ] } ] }, "properties": { "kty": { "const": "EC" } }, "required": [ "crv", "x", "y" ] }, { "not": { "anyOf": [ { "required": [ "n" ] }, { "required": [ "e" ] }, { "required": [ "y" ] } ] }, "properties": { "kty": { "const": "OKP" } }, "required": [ "crv", "x" ] } ], "properties": { "alg": { "description": "Optional advertised signing algorithm, checked for key compatibility but not endorsed", "type": "string" }, "crv": { "description": "EC or OKP curve", "enum": [ "P-256", "P-384", "P-521", "Ed25519" ], "type": "string" }, "e": { "description": "RSA exponent as canonical base64urlUInt", "type": "string" }, "key_ops": { "description": "Optional singleton verify operation", "items": { "const": "verify", "description": "Public verification operation", "type": "string" }, "maxItems": 1, "minItems": 1, "type": "array" }, "kid": { "description": "Optional nonempty public key identifier; unique within a set", "maxLength": 128, "minLength": 1, "type": "string" }, "kty": { "description": "Supported public key type", "enum": [ "RSA", "EC", "OKP" ], "type": "string" }, "n": { "description": "RSA modulus as canonical base64urlUInt", "type": "string" }, "use": { "const": "sig", "description": "Optional signing-key use", "type": "string" }, "x": { "description": "Canonical base64url x coordinate or Ed25519 public bytes", "type": "string" }, "x5c": { "description": "Untrusted certificate strings; never parsed or trusted", "items": { "description": "Base64 certificate metadata", "type": "string" }, "maxItems": 8, "type": "array" }, "x5t": { "description": "Untrusted SHA-1 certificate thumbprint metadata", "type": "string" }, "x5t#S256": { "description": "Untrusted SHA-256 certificate thumbprint metadata", "type": "string" }, "x5u": { "description": "Untrusted certificate URL metadata; never fetched", "type": "string" }, "y": { "description": "Canonical base64url EC y coordinate", "type": "string" } }, "required": [ "kty" ], "type": "object" } }, "required": [ "jwk" ], "type": "object" }, "bodyType": { "enum": [ "json", "form-data", "text" ], "type": "string" }, "method": { "enum": [ "POST" ], "type": "string" }, "type": { "const": "http", "type": "string" } }, "required": [ "type", "method", "bodyType", "body" ], "type": "object" }, "output": { "properties": { "example": { "additionalProperties": false, "properties": { "_atlas": { "additionalProperties": false, "description": "Atlas documentation and related-route metadata added after deployment", "properties": { "docs": { "description": "Documentation URL for this bridge", "format": "uri", "maxLength": 512, "type": "string" }, "related": { "description": "Bounded related Atlas routes", "items": { "additionalProperties": false, "description": "One related Atlas route", "properties": { "bridge": { "description": "Related bridge name", "maxLength": 64, "type": "string" }, "docs": { "description": "Related bridge documentation URL", "format": "uri", "maxLength": 512, "type": "string" }, "summary": { "description": "Short capability summary", "maxLength": 256, "type": "string" }, "url": { "description": "Related route URL", "format": "uri", "maxLength": 512, "type": "string" } }, "required": [ "bridge", "url", "docs", "summary" ], "type": "object" }, "maxItems": 3, "type": "array" } }, "required": [ "docs" ], "type": "object" }, "algorithm_version": { "const": "rfc7638-public-jwk-inspect-v1", "description": "Pinned public JWK and thumbprint contract", "type": "string" }, "key_count": { "description": "Number of validated public keys", "maximum": 32, "minimum": 1, "type": "integer" }, "keys": { "description": "Normalized public key metadata and thumbprints", "items": { "additionalProperties": false, "description": "Normalized validated public JWK metadata", "properties": { "alg": { "description": "Compatible advertised algorithm or empty; not a security endorsement", "type": "string" }, "bits": { "description": "Validated public key or curve bit size", "maximum": 8192, "minimum": 256, "type": "integer" }, "curve": { "description": "Validated curve or empty for RSA", "type": "string" }, "key_ops": { "description": "Validated public operations", "items": { "description": "verify operation", "type": "string" }, "maxItems": 1, "type": "array" }, "kid": { "description": "Public key identifier or empty", "type": "string" }, "kty": { "description": "Validated key type", "type": "string" }, "thumbprint_sha256": { "description": "RFC 7638 SHA-256 JWK Thumbprint in base64url form", "pattern": "^[A-Za-z0-9_-]{43}$", "type": "string" }, "use": { "description": "Validated sig use or empty", "type": "string" }, "warnings": { "description": "Key-local certificate URL/chain handling warnings", "items": { "description": "Human-readable warning", "type": "string" }, "maxItems": 8, "type": "array" } }, "required": [ "kty", "kid", "use", "key_ops", "alg", "curve", "bits", "thumbprint_sha256", "warnings" ], "type": "object" }, "maxItems": 32, "minItems": 1, "type": "array" }, "kind": { "description": "Selected request branch", "enum": [ "single", "set" ], "type": "string" }, "operation": { "const": "jwk-inspect", "description": "Stable operation name", "type": "string" }, "warnings": { "description": "Route-level trust and suitability limitations", "items": { "description": "Human-readable warning", "type": "string" }, "maxItems": 8, "type": "array" } }, "required": [ "operation", "algorithm_version", "kind", "key_count", "keys", "warnings" ], "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" } }, "required": [ "input" ], "type": "object" }, "tags": [ "jwk-inspect", "json-web-key", "public-key", "rfc7638", "thumbprint" ] } }, "tags": [ "bazaar" ], "sourceHost": "artifact-inspector.use.x402atlas.com", "lastUpdated": "2026-09-15T06:32:39.717Z", "quality": { "calls30d": 2, "uniquePayers30d": 1, "lastCalledAt": "2026-09-15T06:32:39.604Z" }, "liveness": {}, "verified": false, "featured": false, "provider": { "host": "artifact-inspector.use.x402atlas.com", "manifest_name": "artifact-inspector.use.x402atlas.com", "source": "cdp-mirror", "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources", "submitted_at": "2026-09-18T22:00:31.484Z" } }