Documentation
Aggregates UK regulatory data from Companies House into a single normalised JSON response. Designed for AI agents performing due diligence and KYB checks on UK companies.
Quickstart
From signup to your first successful API call in a few minutes — get a key, make a request, read the response.
MCP server
The native integration path for AI agents. Connect an MCP client with a copy-paste config and call the API as tools.
API Reference
Every endpoint, parameter, and response schema — with copy-paste curl examples and machine-readable risk codes.
Error codes
Machine-readable error codes, HTTP statuses, and retry semantics — including the two kinds of 429.
Risk signals
Every risk flag code and severity, how the score is computed, and how to read sources_checked and sources_failed.
Rate limits
Monthly quotas per tier, what counts against them, and how to upgrade without rotating your key.