The Openapi Slice API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for openapi slice.
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openapi: 3.2.0
info:
title: WritersLogic Verifiable AI Agent Hub Openapi Slice 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: Openapi Slice
paths:
/api/v1/openapi-slice:
post:
operationId: openapi_slice
summary: Slice one operation out of an OpenAPI 3.0 or 3.1 document with every component…
description: 'Extracts one operation (path plus HTTP method, matching templated paths like /pets/{id}) from an OpenAPI 3.0.x or 3.1.x document, given as JSON, YAML or a parsed object, and returns a smaller valid OpenAPI document holding that operation, its path-level parameters and servers, and the transitive closure of every local $ref it uses: schemas, parameters, requestBodies, responses, headers, examples, links, callbacks, pathItems, securitySchemes and discriminator mappings, cycle safe. For agents that need to put one endpoint of a large API into a prompt or a tool definition. External file or URL references are listed and the status is unsupported, never silently dropped. It does not validate the document and does not dereference (references stay as $ref).
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/openapi-slice
security:
- x402: []
- apiKey: []
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- path
- method
properties:
spec:
description: The OpenAPI document as a JSON object (use specText for YAML).
specText:
type: string
maxLength: 400000
description: The OpenAPI document as JSON text (up to 400000 characters) or YAML text (up to 50000 characters).
path:
type: string
maxLength: 500
description: Concrete or templated path, e.g. /pets/{petId} or /pets/42.
method:
type: string
enum:
- get
- put
- post
- delete
- options
- head
- patch
- trace
example:
specText: "openapi: 3.0.3\ninfo: {title: Pets, version: '1'}\npaths:\n /pets/{id}:\n get:\n operationId: getPet\n parameters:\n - $ref: '#/components/parameters/Id'\n responses:\n '200':\n description: ok\n content:\n application/json:\n schema: {$ref: '#/components/schemas/Pet'}\n /owners:\n get:\n responses:\n '200': {description: ok}\ncomponents:\n parameters:\n Id: {name: id, in: path, required: true, schema: {type: string}}\n schemas:\n Pet: {type: object, properties: {friends: {type: array, items: {$ref: '#/components/schemas/Pet'}}}}\n Unused: {type: string}\n"
path: /pets/42
method: get
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.'
slice:
anyOf:
- description: The sliced OpenAPI document.
- type: 'null'
matchedPath:
anyOf:
- type: string
- type: 'null'
templateMatch:
type: boolean
description: True when path matched a templated key such as /pets/{id}.
operationId:
anyOf:
- type: string
- type: 'null'
openapi:
anyOf:
- type: string
- type: 'null'
included:
type: object
properties:
references:
type: integer
components:
type: array
items:
type: string
securitySchemes:
type: array
items:
type: string
unresolved:
type: array
items:
type: object
properties:
ref:
type: string
from:
type: string
reason:
type: string
sizes:
type: object
properties:
sourceNodes:
type: integer
sliceBytes:
type: integer
sliceNodes:
type: integer
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:
- Openapi Slice
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