WritersLogic Verifiable AI Agent Hub Bid Coverage API
The Bid Coverage API from WritersLogic Verifiable AI Agent Hub — 1 operation(s) for bid coverage.
Work with this as data
Every API here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for apis
7 MCP tools reach this
find_apisBrowse and filter every API in the catalog.get_api_artifactsOne API's artifacts, grouped by type.get_openapiThe primary OpenAPI for this API.find_similar_apisAPIs that look like this one.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This API
curl "https://apis.io/api/v1/apis/writerslogic-com:writerslogic-com-bid-coverage-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.
OpenAPI Specification
openapi: 3.2.0
info:
title: WritersLogic Verifiable AI Agent Hub Bid Coverage 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: Bid Coverage
paths:
/api/v1/bid-coverage:
post:
operationId: bid_coverage
summary: 'Bid coverage: uncovered lines, substitutions, partial quantities and…'
description: 'Checks which required lines of a tender or RFQ are covered by the bids received (up to 200 lines, 30 bidders, 2000 offers), for an agent comparing responses. A line is covered when firm offers (exact item, no condition, no bundle) sum to the required quantity; substitute offers, offers bound to a bundle (all-or-nothing across the lines in that bundle) and offers with a stated condition are reported separately and never count as firm. Returns per line the firm quantity, which bidders cover it and what else is on offer, and per bidder the lines they fully cover. pass: every line has enough firm quantity. fail: some line has no offers or too little quantity even counting every offer. unknown: every line is coverable only by counting substitutes, bundles or conditions, which need a human decision. Duplicate bidder names, and a second firm offer for the same line from one bidder, are refused rather than summed. Does not price or rank bids.
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/bid-coverage
security:
- x402: []
- apiKey: []
requestBody:
required: true
content:
application/json:
schema:
type: object
additionalProperties: false
required:
- lines
- bids
properties:
lines:
type: array
minItems: 1
maxItems: 200
items:
type: object
required:
- id
- quantity
properties:
id:
type: string
minLength: 1
maxLength: 80
quantity:
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.'
additionalProperties: false
bids:
type: array
minItems: 1
maxItems: 30
items:
type: object
required:
- bidder
- offers
properties:
bidder:
type: string
minLength: 1
maxLength: 80
offers:
type: array
maxItems: 400
items:
type: object
required:
- line
- quantity
properties:
line:
type: string
minLength: 1
maxLength: 80
quantity:
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.'
substitute:
type: boolean
description: The bidder offers a different item than specified.
bundle:
type: string
maxLength: 80
description: 'Bundle id: the offer holds only if the bidder is awarded every line carrying the same bundle id.'
condition:
type: string
maxLength: 200
description: Any stated condition (minimum spend, lead time, award of another lot).
additionalProperties: false
additionalProperties: false
example:
lines:
- id: L1
quantity: '100'
- id: L2
quantity: '50'
- id: L3
quantity: '10'
bids:
- bidder: Acme
offers:
- line: L1
quantity: '100'
- line: L2
quantity: '20'
- bidder: Birch
offers:
- line: L2
quantity: '30'
- line: L3
quantity: '10'
bundle: B1
- line: L1
quantity: '100'
substitute: true
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
required:
type: string
firmQuantity:
type: string
coverage:
type: string
enum:
- firm
- uncovered
- short
- substitute-or-conditional-only
firmBidders:
type: array
items:
type: string
other:
type: array
items:
type: object
properties:
bidder:
type: string
quantity:
type: string
kind:
type: string
enum:
- substitute
- bundle
- conditional
note:
type: string
bidders:
type: array
items:
type: object
properties:
bidder:
type: string
fullyCovers:
type: array
items:
type: string
missing:
type: array
items:
type: string
uncoveredLines:
type: array
items:
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:
- Bid 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