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UK Civil Aviation Authority

CAA Consultations API

The Citizen Space (Delib) public consultation API deployed on the CAA's consultations domain. Two documented methods — json_search_results and json_consultation_details — return published CAA consultation activities as JSON with no API key and no signup. Versions 2.0 through 2.4 are served concurrently. Verified live 2026-07-28 (HTTP 200, JSON array). This is the only documented, publicly callable API on a caa.co.uk domain; it is the vendor's platform API, not a CAA aviation data API.

Documentation Provider Profile APIs.io OpenAPI GitHub

CAA Consultations API is published by UK Civil Aviation Authority on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 4 JSON Schema definitions.

Tagged areas include Consultations, Government, and United Kingdom. The published artifact set on APIs.io includes API documentation, an API reference, a getting-started guide, an OpenAPI specification, and 4 JSON Schemas.

This API exposes 2 operations across 2 paths, and defines 4 schemas. It is described by OpenAPI 3.2.0, at version 2.4.

Requests are made against 5 base URLs: https://consultations.caa.co.uk/api/2.4, https://consultations.caa.co.uk/api/2.3, https://consultations.caa.co.uk/api/2.2, https://consultations.caa.co.uk/api/2.1, https://consultations.caa.co.uk/api/2.0.

2 operations 2 paths 4 schemas 2 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2.4
Base URL
https://consultations.caa.co.uk/api/2.4
Contact
UK Civil Aviation Authority
Resource Areas
1

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 GET. Each is listed below with its method, path, parameters, and response codes.

Consultations 2

Published CAA consultation and engagement activities.

GET
/json_search_results
Search published consultation activities
json_search_results 13 params → 200
GET
/json_consultation_details
Get one consultation activity by department and activity ID
json_consultation_details 3 params → 200404

Schemas 4

The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are Activity (32 properties), SupportingDocument (3 properties), Term (2 properties), RelatedLink (2 properties). Each schema is shown below with its type and property counts.

RelatedLink
object
2 properties
Term
object
An audience, area or interest term.
2 properties
SupportingDocument
object
3 properties
Activity
object
A published consultation or engagement activity. Field groups follow the fields parameter: basic fields are always present, fields marked extended require fiel…
32 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

uk-caa-consultations-api-openapi.yml Raw ↑
#Consultations#Government#United Kingdom
← Back to C APIs
API Details
ID
uk-caa:caa-consultations-api
Base URL
https://consultations.caa.co.uk/api/2.4
Docs
https://consultations.caa.co.uk/api/2.4/
Provider
UK Civil Aviation Authority
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