UK Data: UK Companies House

uk.co.relinessPublished by reliness.co.ukOfficial publisherv1.5.0Updated Nov 7, 2026

UK Companies House and KYB: search, officers, owners (PSC), filings, charges, banned directors

The publisher's own server: UK Data: Compliance and finance checks

VerifiedStreamable HTTPWeb executableFinance Business & Commerce

Server details

Identifier: uk.co.reliness/uk-companies
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Nov 4, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to reliness.co.uk, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

Add a badge to your README

Show readers this MCP server is listed on SourceWeft. The badge links to this page.

[![Listed on SourceWeft](https://sourceweft.com/badge/mcp/uk.co.reliness%2Fuk-companies.svg)](https://sourceweft.com/mcp/uk.co.reliness%2Fuk-companies?utm_source=readme&utm_medium=badge)

Overview

AI-generated overview

Remote MCP server giving assistants UK Companies House data: company search, officers, owners, filings, charges and banned directors for KYB checks.

What you can do: Search UK companies registered with Companies House
Look up officers and persons with significant control (owners)
Retrieve company filings and charges
Check banned directors for due-diligence and KYB work
When to use it: Useful when an assistant needs to verify or research UK businesses: onboarding checks, KYB due diligence, ownership and officer lookups, or reviewing a company's filing and charge history.
Requirements: A remote streamable HTTP endpoint; no local install. Works without credentials under a free daily allowance; an optional Authorization header with a bearer key raises the limit, and a free key is obtained from the provider's key endpoint.

Before you install

The optional Authorization bearer key is a secret and should be stored securely. Results are third-party public-registry data and may be incomplete or out of date, so verify before relying on them for compliance decisions.

Installation

In SourceWeft

Open UK Data: UK Companies House in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/uk.co.reliness%2Fuk-companies/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "uk-data-uk-companies-house": {
      "type": "http",
      "url": "https://ukdata.reliness.co.uk/mcp/uk-companies"
    }
  }
}

Tools

SourceWeft has not read this server's tools yet.

Version history

v1.5.0LatestNov 7, 2026
v1.4.0Nov 4, 2026

Score

67% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
LicenseNot applicable
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.