fourzerotwo-si Uk Tenders API
UK Public Tenders: UK public-sector tenders and contract awards from Contracts Finder and Find a Tender: search, read a notice, see who won what.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Fourzerotwo Si Uk Tenders API
version: 1.1.0
contact:
url: https://fourzerotwo.si
description: 'Operations tagged uk-tenders across 2 of this provider''s published API definitions: openapi.json, fourzerotwo-si-openapi.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://fourzerotwo.si
tags:
- name: uk-tenders
description: 'UK Public Tenders: UK public-sector tenders and contract awards from Contracts Finder and Find a Tender: search, read a notice, see who won what.'
paths:
/v1/uk-tenders/search:
get:
operationId: uk_tenders__search
summary: 'UK Public Tenders: Search tenders'
description: 'Contracts Finder notices by keyword, status (open, closed, awarded, withdrawn), type and publication date, optionally above a minimum value. Price: $0.003 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- uk-tenders
externalDocs:
url: https://fourzerotwo.si/apis/uk-tenders/search
parameters:
- name: q
in: query
required: false
description: Keywords (title, description, buyer, supplier)
schema:
type: string
maxLength: 200
example: software
- name: status
in: query
required: false
description: open, closed, awarded or withdrawn
schema:
type: string
maxLength: 12
example: open
- name: type
in: query
required: false
description: contract, pipeline, early-engagement or future-opportunity
schema:
type: string
maxLength: 20
- name: published_from
in: query
required: false
description: YYYY-MM-DD
schema:
type: string
maxLength: 10
- name: published_to
in: query
required: false
description: YYYY-MM-DD
schema:
type: string
maxLength: 10
- name: min_value
in: query
required: false
description: Minimum value in £
schema:
type: integer
- name: limit
in: query
required: false
description: Max results (default 20, max 50)
schema:
type: integer
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.003000'
x-free-tier: free
x-mcp-tool: uk-tenders__search
servers:
- url: https://fourzerotwo.si
/v1/uk-tenders/notice:
get:
operationId: uk_tenders__notice
summary: 'UK Public Tenders: Notice'
description: 'One notice in full: description, CPV codes, contract dates, procedure and awards (supplier, value, dates). Accepts a Contracts Finder id (GUID) or a Find a Tender notice number (e.g. 095302-2026). Price: $0.002 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- uk-tenders
externalDocs:
url: https://fourzerotwo.si/apis/uk-tenders/notice
parameters:
- name: id
in: query
required: true
description: Contracts Finder GUID or Find a Tender notice number
schema:
type: string
maxLength: 40
example: 095302-2026
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.002000'
x-free-tier: free
x-mcp-tool: uk-tenders__notice
servers:
- url: https://fourzerotwo.si
/v1/uk-tenders/supplier-awards:
get:
operationId: uk_tenders__supplier_awards
summary: 'UK Public Tenders: Awards to a supplier'
description: 'Contracts Finder awards won by a supplier (name match), newest first, with total value. Price: $0.003 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- uk-tenders
externalDocs:
url: https://fourzerotwo.si/apis/uk-tenders/supplier-awards
parameters:
- name: supplier
in: query
required: true
description: Supplier name (matched as a phrase)
schema:
type: string
maxLength: 120
example: Capita Business Services
- name: published_from
in: query
required: false
description: YYYY-MM-DD
schema:
type: string
maxLength: 10
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.003000'
x-free-tier: free
x-mcp-tool: uk-tenders__supplier-awards
servers:
- url: https://fourzerotwo.si
/v1/uk-tenders/find-a-tender-latest:
get:
operationId: uk_tenders__find_a_tender_latest
summary: 'UK Public Tenders: Latest Find a Tender notices'
description: 'Above-threshold UK notices published or updated on Find a Tender in the last 1–7 days, by stage (planning, tender, award), optionally filtered by keyword. Price: $0.003 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- uk-tenders
externalDocs:
url: https://fourzerotwo.si/apis/uk-tenders/find-a-tender-latest
parameters:
- name: days
in: query
required: false
description: Look back 1–7 days (default 3)
schema:
type: integer
example: 7
- name: stage
in: query
required: false
description: planning, tender (default) or award
schema:
type: string
maxLength: 10
example: tender
- name: q
in: query
required: false
description: Keyword filter on title, description and buyer
schema:
type: string
maxLength: 120
- name: limit
in: query
required: false
description: Max results (default 20, max 50)
schema:
type: integer
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.003000'
x-free-tier: free
x-mcp-tool: uk-tenders__find-a-tender-latest
servers:
- url: https://fourzerotwo.si
components:
responses:
PaymentRequired:
description: x402 payment required. The body (also base64 in the PAYMENT-REQUIRED header) lists accepted payments.
headers:
PAYMENT-REQUIRED:
schema:
type: string
description: Base64 JSON x402 v2 PaymentRequired
content:
application/json:
schema:
type: object
properties:
x402Version:
type: integer
error:
type: string
accepts:
type: array
items:
type: object
Error:
description: 400 = invalid input, 404 = not found at the source, 502 = the source failed. Never charged.
content:
application/json:
schema:
type: object
properties:
error:
type: string
charged:
type: boolean
securitySchemes:
freeKey:
type: apiKey
in: header
name: X-API-Key
description: Optional free key (fzt_…) for the free tier.
x-refined-from:
- openapi.json
- fourzerotwo-si-openapi.json