The Compensation Coverage API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for compensation coverage.
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openapi: 3.2.0
info:
title: WritersLogic Verifiable AI Agent Hub Compensation Coverage…
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: Compensation Coverage
paths:
/api/v1/compensation-coverage:
post:
operationId: compensation_coverage
summary: Check that every write step in a multi-step plan has an undo step, and give the…
description: 'For an agent plan made of steps with declared effects (read or write), checks every write in the plan, run or not, has a compensation step that exists, is itself a write, is not its own compensation, and that the dependencies have no cycle; flags writes declared irreversible; and, given which steps have completed, returns the compensations to run in reverse completion order. Does not judge whether a compensation really undoes the effect, nor run anything.
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: agent-infra
x-sample-url: https://agents.writerslogic.com/api/v1/samples/compensation-coverage
security:
- x402: []
- apiKey: []
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- steps
properties:
steps:
type: array
minItems: 1
maxItems: 100
items:
type: object
additionalProperties: false
required:
- id
- effect
properties:
id:
type: string
minLength: 1
maxLength: 200
effect:
type: string
enum:
- read
- write
compensation:
type: string
minLength: 1
maxLength: 200
description: Id of the step that undoes this one.
irreversible:
type: boolean
description: Declared impossible to undo (send email, wire transfer).
dependsOn:
type: array
maxItems: 20
items:
type: string
minLength: 1
maxLength: 200
completed:
type: array
maxItems: 100
items:
type: string
minLength: 1
maxLength: 200
description: Step ids completed so far, in completion order. Only used for rollbackOrder and to say an irreversible write has already run; coverage is always checked for the whole plan.
example:
steps:
- id: reserve
effect: write
compensation: release
- id: release
effect: write
irreversible: false
compensation: reserve
- id: charge
effect: write
dependsOn:
- reserve
completed:
- reserve
- charge
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.'
uncovered:
type: array
items:
type: string
description: Write steps with no usable compensation.
irreversible:
type: array
items:
type: string
rollbackOrder:
type: array
items:
type: string
description: Compensation step ids to run, latest completed first. Present when completed is given.
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:
- Compensation Coverage
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