The Quote Normalize API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for quote normalize.
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openapi: 3.2.0
info:
title: WritersLogic Verifiable AI Agent Hub Quote Normalize 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: Quote Normalize
paths:
/api/v1/quote-normalize:
post:
operationId: quote_normalize
summary: Normalise supplier quotes to one comparable unit price (currency, unit of…
description: 'Converts up to 200 quoted prices to a net price per base unit in one currency, for an agent comparing supplier quotes. Each line: price for `per` units of a unit of measure, optional tax-inclusive flag and rate, optional percentage discount, any currency. Uses only the caller''s exchange rates and unit factors (1 uom = factor base units); a currency without a rate, a unit without a factor, or a tax-inclusive price without a tax rate returns unknown for that line with a witness naming what is missing. Never fetches an FX rate and never assumes a unit conversion (a pack, a cup, a case). Output prices carry 8 decimal places (half-even) because unit prices are often below the minor unit. Does not choose a supplier or check quote validity dates.
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/quote-normalize
security:
- x402: []
- apiKey: []
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- targetCurrency
- lines
properties:
targetCurrency:
type: string
pattern: ^[A-Z]{3}$
description: ISO 4217 alphabetic code, upper case.
baseUom:
type: string
minLength: 1
maxLength: 16
description: Name of the base unit prices are normalised to (default "unit").
lines:
type: array
minItems: 1
maxItems: 200
items:
type: object
required:
- id
- currency
- price
properties:
id:
type: string
minLength: 1
maxLength: 80
currency:
type: string
pattern: ^[A-Z]{3}$
description: ISO 4217 alphabetic code, upper case.
price:
type: string
pattern: ^-?\d{1,15}(\.\d{1,12})?$
maxLength: 30
description: Quoted price in major units of `currency`, for `per` units of `uom`.
per:
type: string
pattern: ^-?\d{1,15}(\.\d{1,12})?$
maxLength: 30
description: Quantity the price covers (default 1), e.g. "1000" for a per-thousand price.
uom:
type: string
minLength: 1
maxLength: 16
description: Unit of measure of `per`; the base unit when omitted.
taxIncluded:
type: boolean
description: True if the price already includes tax; then taxRate is required.
taxRate:
type: string
pattern: ^-?\d{1,15}(\.\d{1,12})?$
maxLength: 30
description: Percent, e.g. "20".
discountPercent:
type: string
pattern: ^-?\d{1,15}(\.\d{1,12})?$
maxLength: 30
description: Percent discount off the net price.
additionalProperties: false
fxRates:
type: array
maxItems: 50
items:
type: object
required:
- from
- rate
properties:
from:
type: string
pattern: ^[A-Z]{3}$
description: ISO 4217 alphabetic code, upper case.
rate:
type: string
pattern: ^-?\d{1,15}(\.\d{1,12})?$
maxLength: 30
description: Target-currency units per one unit of `from`.
additionalProperties: false
uomFactors:
type: array
maxItems: 50
items:
type: object
required:
- uom
- factor
properties:
uom:
type: string
minLength: 1
maxLength: 16
factor:
type: string
pattern: ^-?\d{1,15}(\.\d{1,12})?$
maxLength: 30
description: Base units in one `uom`.
additionalProperties: false
example:
targetCurrency: USD
baseUom: each
fxRates:
- from: EUR
rate: '1.10'
uomFactors:
- uom: case
factor: '12'
lines:
- id: A
currency: USD
price: '24.00'
uom: case
- id: B
currency: EUR
price: '2.40'
taxIncluded: true
taxRate: '20'
uom: each
- id: C
currency: GBP
price: '2.00'
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.'
lines:
type: array
items:
type: object
properties:
id:
type: string
status:
type: string
enum:
- pass
- fail
- unknown
- unsupported
unitPrice:
type: string
description: Net price per base unit in the target currency, 8 decimal places.
missing:
type: array
items:
type: string
cheapest:
type: string
description: Id of the lowest normalised unit price among resolved lines (first on ties); absent if none resolved.
targetCurrency:
type: string
baseUom:
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:
- Quote Normalize
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