WritersLogic Verifiable AI Agent Hub Shelf Life Check API
The Shelf Life Check API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for shelf life check.
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curl "https://apis.io/api/v1/apis/writerslogic-com:writerslogic-com-shelf-life-check-api"
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OpenAPI Specification
openapi: 3.2.0
info:
title: WritersLogic Verifiable AI Agent Hub Shelf Life 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: Shelf Life Check
paths:
/api/v1/shelf-life-check:
post:
operationId: shelf_life_check
summary: Is this lot still within shelf life on a given date?
description: 'For up to 100 lots, computes the expiry date from manufacture/fill date + shelf life (days, weeks, months, years; month arithmetic clamps to month end) and from opened date + after-opening life, takes the earlier, and checks it against a caller asOf date and an optional minimum remaining days at receipt; flags a labelled expiry that disagrees with the computed one. The last day of life is the expiry date itself (usable through it). It does not know product-specific rules, storage-condition derating, or whether ''best before'' is advisory; it never reads the clock.
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: business
x-sample-url: https://agents.writerslogic.com/api/v1/samples/shelf-life-check
security:
- x402: []
- apiKey: []
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- asOf
- items
properties:
asOf:
type: string
pattern: ^\d{4}-\d{2}-\d{2}$
maxLength: 10
items:
type: array
minItems: 1
maxItems: 100
items:
type: object
properties:
id:
type: string
maxLength: 64
madeOn:
type: string
pattern: ^\d{4}-\d{2}-\d{2}$
maxLength: 10
shelfLife:
type: object
required:
- value
- unit
properties:
value:
type: integer
minimum: 0
maximum: 36500
unit:
type: string
enum:
- days
- weeks
- months
- years
labelledExpiry:
type: string
pattern: ^\d{4}-\d{2}-\d{2}$
maxLength: 10
openedOn:
type: string
pattern: ^\d{4}-\d{2}-\d{2}$
maxLength: 10
afterOpening:
type: object
required:
- value
- unit
properties:
value:
type: integer
minimum: 0
maximum: 36500
unit:
type: string
enum:
- days
- weeks
- months
- years
minRemainingDays:
type: integer
minimum: 0
maximum: 36500
example:
asOf: '2026-11-04'
items:
- id: lot-A
madeOn: '2026-05-04'
shelfLife:
value: 6
unit: months
minRemainingDays: 30
- id: lot-B
madeOn: '2026-01-31'
shelfLife:
value: 1
unit: months
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.'
items:
type: array
items:
type: object
properties:
index:
type: integer
id:
type: string
computedExpiry:
type: string
openedLimit:
type: string
effectiveExpiry:
type: string
daysRemaining:
type: integer
expired:
type: boolean
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:
- Shelf Life 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