Package URL Inspect
Parse a bounded Package URL and normalize generic syntax: type/qualifier case, percent encoding, qualifier order. Preserves name/version case; no ecosystem rules or registry validation. Strict subset rejects empty/dot path segments, whitespace, raw reserved characters, malformed UTF-8, and duplicate qualifiers.
supply-chain · Operation ID: package-url-inspect
Choose this operation when
- Extract package type, namespace, version, qualifiers, and subpath without network access
- Normalize percent escapes and qualifier ordering inside the advertised subset
Outside this profile
- Full ECMA-427 or ecosystem-specific PURL validation/canonicalization
- Registry existence checks or fetching package artifacts
Exact release references
Static JSON contract · Markdown reference · Fixed example response
Complete input schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"purl": {
"type": "string",
"minLength": 1,
"maxLength": 4096
}
},
"required": [
"purl"
],
"additionalProperties": false
}
Complete output-envelope schema
{
"type": "object",
"required": [
"operation",
"version",
"result",
"provenance"
],
"properties": {
"operation": {
"const": "package-url-inspect",
"type": "string"
},
"version": {
"const": "0.29.0",
"type": "string"
},
"result": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"normalized": {
"type": "string",
"maxLength": 12288
},
"type": {
"type": "string",
"maxLength": 100
},
"namespace": {
"maxItems": 32,
"type": "array",
"items": {
"type": "string",
"maxLength": 2048
}
},
"name": {
"type": "string",
"maxLength": 2048
},
"version": {
"anyOf": [
{
"type": "string",
"maxLength": 2048
},
{
"type": "null"
}
]
},
"qualifiers": {
"maxItems": 32,
"type": "array",
"items": {
"type": "object",
"properties": {
"key": {
"type": "string",
"maxLength": 100
},
"value": {
"type": "string",
"maxLength": 2048
}
},
"required": [
"key",
"value"
],
"additionalProperties": false
}
},
"subpath": {
"maxItems": 32,
"type": "array",
"items": {
"type": "string",
"maxLength": 2048
}
},
"profile": {
"type": "string",
"const": "generic-syntax-subset-v1"
},
"ecosystemRulesApplied": {
"type": "boolean",
"const": false
}
},
"required": [
"normalized",
"type",
"namespace",
"name",
"version",
"qualifiers",
"subpath",
"profile",
"ecosystemRulesApplied"
],
"additionalProperties": false
},
"provenance": {
"type": "object",
"required": [
"inputSha256",
"outputSha256",
"deterministic",
"externalRequests"
],
"properties": {
"inputSha256": {
"type": "string",
"pattern": "^[a-f0-9]{64}$"
},
"outputSha256": {
"type": "string",
"pattern": "^[a-f0-9]{64}$"
},
"deterministic": {
"const": true
},
"externalRequests": {
"const": 0
}
}
}
},
"additionalProperties": false
}
Fixed example
One accepted fixed example, not a custom-input trial. No operation runs when this static page is requested.
Example input
{
"purl": "pkg:npm/%40acme/worker-kit@1.2.0?repository_url=https%3A%2F%2Fregistry.example&arch=x64#dist/index.js"
}
Example response
{
"operation": "package-url-inspect",
"version": "0.29.0",
"result": {
"normalized": "pkg:npm/%40acme/worker-kit@1.2.0?arch=x64&repository_url=https%3A%2F%2Fregistry.example#dist/index.js",
"type": "npm",
"namespace": [
"@acme"
],
"name": "worker-kit",
"version": "1.2.0",
"qualifiers": [
{
"key": "arch",
"value": "x64"
},
{
"key": "repository_url",
"value": "https://registry.example"
}
],
"subpath": [
"dist",
"index.js"
],
"profile": "generic-syntax-subset-v1",
"ecosystemRulesApplied": false
},
"provenance": {
"inputSha256": "5c4dfe4d67dbd3df697be9f5119fee7da589fd2f05cf0bf7ea10c6b860c04659",
"outputSha256": "99448916979697e5c9fff32ebdecee9d452e113f95e03134503022f51e86aca1",
"deterministic": true,
"externalRequests": 0
}
}
Bounds and precision
JavaScript IEEE-754 numbers; use strings for large integer IDs/exact decimals where the schema accepts strings. No lossless numeric parsing.
{
"global": {
"requestBytes": 131072,
"responseBytes": 524288,
"jsonDepth": 32,
"jsonNodes": 20000,
"requestsPerMinute": 60,
"paidAttemptsPerMinute": 20,
"idempotencyHours": 24
},
"operation": {
"inputBytes": 100000,
"jsonNodes": 12000,
"jsonDepth": 24,
"outputBytes": 300000,
"purlCharacters": 4096,
"namespaceSegments": 32,
"qualifiers": 32,
"subpathSegments": 32
}
}
Complete schemas, descriptions and cross-field validation may impose additional limits.
Proposed price and protocol definitions
{
"unit": "one successful operation call",
"proposedNominalUsd": "0.003",
"sixDecimalTokenBaseUnits": "3000",
"subscription": false,
"includesPayerWalletOrNetworkFees": false,
"liveQuoteVerified": false,
"condition": "Actual SDK challenge is authoritative only within the caller's explicit authorization; configured six-decimal token peg is an operator assertion, not a conversion guarantee."
}
Protocol definitions: x402, mpp. MPP uses Tempo charge. Paid MCP execution is unsupported. All runtime readiness is not evaluated in this build.
API path templates, not endpoints on this documentation host
{
"x402": "/v1/x402/package-url-inspect",
"mpp": "/v1/mpp/package-url-inspect"
}
Required headers
{
"Content-Type": "application/json",
"Idempotency-Key": "random 16–128 character operation identifier"
}
Actual SDK challenge amount, asset, network, recipient and wallet costs must pass independent authorization. Preserve identical key, body, protocol and credential on retries; on PAYMENT_UNCERTAIN stop and reconcile.
Execution profile and provider conditions
{
"deterministic": true,
"externalRequests": 0,
"maxExternalRequests": 0,
"resultSnapshotPersisted": false,
"fixedExampleIsIllustrativeSnapshot": false,
"requiresPayment": true,
"supportsMcpExecution": false
}
Deterministic supplied-input operation with no external requests or stored request/result bodies. Payment infrastructure retains payment metadata and hashes.
Failure handling
- HTTP 400: Malformed JSON, missing/invalid idempotency key, or payment identifier mismatch Correct the request before payment
- HTTP 402: Payment challenge or rejected payment Use official protocol SDK; inspect payment outcome before another payment
- HTTP 409: Idempotency conflict, duplicate proof, or PAYMENT_UNCERTAIN Keep original key, body, and proof; reconcile uncertainty with operator; never blindly repay
- HTTP 413: Input or generated output too large Reduce input; no payment attempted for validation failure
- HTTP 415: Unsupported media type or compression Send uncompressed application/json
- HTTP 422: Schema or service-specific semantic validation failure Correct input using returned error code; no payment attempted
- HTTP 429: Request/payment-attempt rate exceeded Wait for rate limit window; preserve existing payment identity
- HTTP 503: Payment configuration/provider/state unavailable, or live DNS preparation failed before settlement Check readiness; DNS preparation failures may retry the identical key/body/credential only; uncertainty requires reconciliation
Declared requirements
Before any paid call, refresh the live operation contract and POST the complete bounded budgeted plan to the separate API's /preflight. Unknown requirements block selection; compatible preflight is not permission to spend.