WritersLogic Verifiable AI Agent Hub Allocate API
The Allocate API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for allocate.
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OpenAPI Specification
openapi: 3.2.0
info:
title: WritersLogic Verifiable AI Agent Hub Allocate 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: Allocate
paths:
/api/v1/allocate:
post:
operationId: allocate
summary: Split a money amount into parts that sum exactly to the total
description: 'Splits one signed amount into up to 500 parts by weights (or equal parts), in integer minor units of its currency, for an agent dividing a bill, a refund, a fee or a tax. Each share is rounded under the declared mode, then the leftover minor units are assigned by the declared remainder policy, so the parts always sum to the total exactly. Negative totals (refunds) are supported; zero-weight parts get zero. Fails when the total has more fraction digits than the currency, or the weights sum to zero. Does not choose a policy for you and does not apply cash rounding or tax.
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/allocate
security:
- x402: []
- apiKey: []
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- total
properties:
total:
type: string
pattern: ^-?\d{1,15}(\.\d{1,12})?$
maxLength: 30
description: 'Decimal string such as "-12.50" (up to 15 integer and 12 fraction digits). JSON numbers are not accepted: they are binary floats.'
currency:
type: string
pattern: ^[A-Z]{3}$
description: ISO 4217 alphabetic code, upper case.
exponent:
type: integer
minimum: 0
maximum: 8
description: Override the ISO 4217 exponent; required for codes not on the list.
weights:
type: array
minItems: 1
maxItems: 500
items:
type: string
pattern: ^\d{1,15}(\.\d{1,12})?$
maxLength: 28
description: Non-negative decimal-string weights, e.g. ["1","1","2"] or percentages. Give weights or parts.
parts:
type: integer
minimum: 1
maximum: 500
description: Equal split into this many parts.
rounding:
type: string
enum:
- half-up
- half-down
- half-even
- up
- down
- ceiling
- floor
description: 'Rounding of each share before the residual is moved. Default half-even. half-up: ties away from zero. half-down: ties toward zero. half-even: ties to the even neighbour. up: away from zero. down: toward zero. ceiling: toward +infinity. floor: toward -infinity.'
remainder:
type: string
enum:
- largest-remainder
- first
- last
description: 'largest-remainder (default): one unit at a time to the part with the largest rounding claim, ties to the lowest index. first / last: the whole residual to the first / last part with positive weight.'
example:
total: '100.00'
currency: USD
weights:
- '1'
- '1'
- '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.'
allocations:
type: array
items:
type: object
properties:
index:
type: integer
weight:
type: string
minor:
type: integer
amount:
type: string
totalMinor:
type: integer
sumMinor:
type: integer
description: Sum of the parts; equals totalMinor.
residualMinor:
type: integer
description: Minor units moved after per-share rounding (signed).
exponent:
type: integer
rounding:
type: string
remainder:
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:
- Allocate
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