WritersLogic Verifiable AI Agent Hub Semver Check API
The Semver Check API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for semver check.
The Semver Check API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for semver check.
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openapi: 3.2.0
info:
title: WritersLogic Verifiable AI Agent Hub Semver Check API
version: 2.0.0
description: Pay-per-call agents settled in USDC on Base via x402. Every response carries a signed provenance envelope.
contact:
name: WritersLogic
url: https://writerslogic.com/agents
email: agents@writerslogic.com
servers:
- url: https://agents.writerslogic.com
tags:
- name: Semver Check
paths:
/api/v1/semver-check:
post:
operationId: semver_check
summary: 'Version range check: npm, PEP 440, Cargo, Maven'
description: 'Parses a dependency version range in npm (node-semver), PEP 440 specifier, Cargo requirement or Maven range syntax and tests up to 100 candidate versions against it, for agents that write or review manifests. Returns per-version satisfies/violates with the failing comparator, the normalized range, the sorted versions and the highest match; pre-release, caret on 0.x, epoch and local-version rules follow each ecosystem''s own spec. Does not resolve dependency graphs, query registries or know which versions exist.
Price: 0.005 USDC on Base (x402).'
x-x402-price-usdc: '0.005'
x-x402-amount: '5000'
x-payment-info:
protocols:
- x402
price:
mode: fixed
currency: USD
amount: '0.005'
x-audience: developer
x-sample-url: https://agents.writerslogic.com/api/v1/samples/semver-check
security:
- x402: []
- apiKey: []
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- ecosystem
- range
properties:
ecosystem:
type: string
enum:
- npm
- pep440
- cargo
- maven
description: Which range syntax and version ordering to apply.
range:
type: string
maxLength: 300
description: 'The range: npm ''^1.2.3 || >=2'', PEP 440 ''>=1.0,<2'', Cargo ''>=1.2, <1.5'', Maven ''[1.0,2.0)''.'
versions:
type: array
maxItems: 100
items:
type: string
maxLength: 100
description: Candidate versions to test; omit to only validate the range.
prereleases:
type: boolean
description: npm includePrerelease / PEP 440 prereleases=true. Default false (ecosystem default exclusion applies).
example:
ecosystem: npm
range: ^0.2.3
versions:
- 0.2.9
- 0.3.0
- 0.2.4-beta.1
responses:
'200':
description: Paid result with provenance
content:
application/json:
schema:
type: object
properties:
data:
type: object
properties:
status:
type: string
enum:
- pass
- fail
- unknown
- unsupported
description: 'pass: every rule held. fail: a rule was violated (see witnesses). unknown: the input lacks the evidence to decide. unsupported: outside what this engine covers. Missing evidence is never a pass.'
ecosystem:
type: string
rangeValid:
type: boolean
normalizedRange:
type: string
description: 'Canonical range: npm comparator sets (^ and ~ desugared as in node-semver), PEP 440 clauses, Maven restrictions.'
rangeKind:
type: string
results:
type: array
items:
type: object
properties:
version:
type: string
valid:
type: boolean
normalized:
type: string
satisfies:
type: boolean
reason:
type: string
highestSatisfying:
type: string
sortedAscending:
type: array
items:
type: string
witnesses:
type: array
items:
type: object
properties:
ruleId:
type: string
detail:
type: string
path:
type: string
description: JSON pointer or dotted path into the input.
offset:
type: integer
index:
type: integer
expected:
description: What the rule required.
actual:
description: What the input had.
versions:
type: object
description: Every semantic dependency of this answer (engine, tables and their as-of dates, tokenizer, calendar, rounding profile).
limits:
type: array
items:
type: string
deterministic:
type: boolean
description: 'Always true: pure code, no model.'
_provenance:
type: object
description: C2PA-aligned manifest and W3C VC 2.0 (eddsa-jcs-2022) issued by the hub DID; verify at POST /api/v1/verify-provenance
required:
- data
- _provenance
'400':
description: Invalid request (no payment consumed)
content:
application/json:
schema:
type: object
properties:
error:
type: string
code:
type: string
'401':
description: Invalid X-API-KEY
content:
application/json:
schema:
type: object
properties:
error:
type: string
code:
type: string
'402':
description: Payment required or invalid
content:
application/json:
schema:
type: object
description: x402 v2 PaymentRequired (also base64 in the PAYMENT-REQUIRED header)
properties:
x402Version:
type: integer
error:
type: string
code:
type: string
resource:
type: object
accepts:
type: array
items:
type: object
extensions:
type: object
'502':
description: Upstream failure; the payment is released or not settled
content:
application/json:
schema:
type: object
properties:
error:
type: string
code:
type: string
tags:
- Semver Check
components:
securitySchemes:
x402:
type: apiKey
in: header
name: PAYMENT-SIGNATURE
description: x402 v2 payment payload (base64) sent after a 402 challenge
apiKey:
type: apiKey
in: header
name: X-API-KEY