UK River Levels, Flow & Rainfall: Environment Agency hydrology gauges across England: river levels and flows (m³/s), rainfall totals and groundwater levels, with 15-minute readings. Find gauges near a postcode, then read the latest or recent series.
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openapi: 3.2.0
info:
title: Fourzerotwo Si Uk Rivers API
version: 1.1.0
contact:
url: https://fourzerotwo.si
description: 'Operations tagged uk-rivers 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-rivers
description: 'UK River Levels, Flow & Rainfall: Environment Agency hydrology gauges across England: river levels and flows (m³/s), rainfall totals and groundwater levels, with 15-minute readings. Find gauges near a postcode, then read the latest or recent series.'
paths:
/v1/uk-rivers/stations-near:
get:
operationId: uk_rivers__stations_near
summary: 'UK River Levels, Flow & Rainfall: Gauges near a point'
description: 'River level, flow, rainfall and groundwater stations within a radius (default 10 km, max 25) of a postcode or point, nearest first. Price: $0.002 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- uk-rivers
externalDocs:
url: https://fourzerotwo.si/apis/uk-rivers/stations-near
parameters:
- name: postcode
in: query
required: false
description: UK postcode (or give lat and lng)
schema:
type: string
maxLength: 8
example: OX1 1DP
- name: lat
in: query
required: false
description: Latitude
schema:
type: string
maxLength: 12
- name: lng
in: query
required: false
description: Longitude
schema:
type: string
maxLength: 12
- name: type
in: query
required: false
description: level | flow | rainfall | groundwater
schema:
type: string
maxLength: 12
example: flow
- name: radius_km
in: query
required: false
description: Radius in km (default 10)
schema:
type: integer
example: 10
- name: limit
in: query
required: false
description: Max results (default 25)
schema:
type: integer
example: 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: '0.002000'
x-free-tier: free
x-mcp-tool: uk-rivers__stations-near
servers:
- url: https://fourzerotwo.si
/v1/uk-rivers/search:
get:
operationId: uk_rivers__search
summary: 'UK River Levels, Flow & Rainfall: Find gauges by name'
description: 'Search hydrology stations by station or river name. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- uk-rivers
externalDocs:
url: https://fourzerotwo.si/apis/uk-rivers/search
parameters:
- name: name
in: query
required: true
description: Station or river name
schema:
type: string
maxLength: 60
example: Thames
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: '0.001000'
x-free-tier: free
x-mcp-tool: uk-rivers__search
servers:
- url: https://fourzerotwo.si
/v1/uk-rivers/station:
get:
operationId: uk_rivers__station
summary: 'UK River Levels, Flow & Rainfall: Gauge details'
description: 'One station: river, location, catchment area, date opened and its measures. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- uk-rivers
externalDocs:
url: https://fourzerotwo.si/apis/uk-rivers/station
parameters:
- name: id
in: query
required: true
description: Hydrology station id (from stations-near or search)
schema:
type: string
maxLength: 60
example: 839866a2-80ca-42a8-a695-8e6d6b165fa6
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: '0.001000'
x-free-tier: free
x-mcp-tool: uk-rivers__station
servers:
- url: https://fourzerotwo.si
/v1/uk-rivers/latest:
get:
operationId: uk_rivers__latest
summary: 'UK River Levels, Flow & Rainfall: Latest reading'
description: 'The latest reading for each measure of a type (level, flow, rainfall or groundwater) at a station. Price: $0.002 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- uk-rivers
externalDocs:
url: https://fourzerotwo.si/apis/uk-rivers/latest
parameters:
- name: id
in: query
required: true
description: Hydrology station id (from stations-near or search)
schema:
type: string
maxLength: 60
example: 839866a2-80ca-42a8-a695-8e6d6b165fa6
- name: type
in: query
required: true
description: level | flow | rainfall | groundwater
schema:
type: string
maxLength: 12
example: level
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-rivers__latest
servers:
- url: https://fourzerotwo.si
/v1/uk-rivers/readings:
get:
operationId: uk_rivers__readings
summary: 'UK River Levels, Flow & Rainfall: Recent readings'
description: 'Recent 15-minute readings (or daily means) for one type at a station, up to 7 days, newest first. Price: $0.002 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- uk-rivers
externalDocs:
url: https://fourzerotwo.si/apis/uk-rivers/readings
parameters:
- name: id
in: query
required: true
description: Hydrology station id (from stations-near or search)
schema:
type: string
maxLength: 60
example: 839866a2-80ca-42a8-a695-8e6d6b165fa6
- name: type
in: query
required: true
description: level | flow | rainfall | groundwater
schema:
type: string
maxLength: 12
example: level
- name: days
in: query
required: false
description: Days back (1–7, default 1)
schema:
type: integer
example: 1
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-rivers__readings
servers:
- url: https://fourzerotwo.si
/v1/uk-rivers/rainfall-near:
get:
operationId: uk_rivers__rainfall_near
summary: 'UK River Levels, Flow & Rainfall: Rainfall near a point'
description: 'The nearest rain gauges to a postcode or point with their latest rainfall totals. Price: $0.003 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- uk-rivers
externalDocs:
url: https://fourzerotwo.si/apis/uk-rivers/rainfall-near
parameters:
- name: postcode
in: query
required: false
description: UK postcode (or give lat and lng)
schema:
type: string
maxLength: 8
example: OX1 1DP
- name: lat
in: query
required: false
description: Latitude
schema:
type: string
maxLength: 12
- name: lng
in: query
required: false
description: Longitude
schema:
type: string
maxLength: 12
- name: radius_km
in: query
required: false
description: Radius in km (default 10)
schema:
type: integer
example: 15
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-rivers__rainfall-near
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