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PromptFiling — UK company deadlines

connects

mcp.promptfiling.co.uk

Free Companies House deadline checks for UK companies: due dates, penalties, dormancy signals.

https://mcp.promptfiling.co.uk/WebsiteNo authMCP 2025-06-18v1.60.03last checked 18 Oct 2026spoke MCP on 100% of 84 checks (30 days)initialize in 179 ms

Will my client connect?

Decided from what the probe found at the endpoint, and from what each client's own documentation says it can complete. Every row carries the day that documentation was read.

✓Claude CodeConnects

The endpoint answers an anonymous handshake, so no credential is needed.

claude mcp add --transport http promptfiling-uk-company-deadlines https://mcp.promptfiling.co.uk/

Claude Code docs · read on 2026-08-30

✓Claude (claude.ai & Desktop)Connects

The endpoint answers an anonymous handshake, so no credential is needed.

Settings → Connectors → Add custom connector, then paste https://mcp.promptfiling.co.uk/.

Claude (claude.ai & Desktop) docs · read on 2026-08-30

✓ChatGPTConnects

The endpoint answers an anonymous handshake, so no credential is needed.

Settings → Apps → Advanced settings → Developer mode, then create a connector pointing at https://mcp.promptfiling.co.uk/.

ChatGPT docs · read on 2026-08-30

✓CursorConnects

The endpoint answers an anonymous handshake, so no credential is needed.

{
  "mcpServers": {
    "promptfiling-uk-company-deadlines": {
      "url": "https://mcp.promptfiling.co.uk/"
    }
  }
}

Cursor docs · read on 2026-08-30

✓VS Code (Copilot)Connects

The endpoint answers an anonymous handshake, so no credential is needed.

{
  "servers": {
    "promptfiling-uk-company-deadlines": {
      "type": "http",
      "url": "https://mcp.promptfiling.co.uk/"
    }
  }
}

VS Code (Copilot) docs · read on 2026-08-30

How to authenticate

Checked against the endpoint by our probe on 18 Oct 2026. These are the capabilities the server advertises, not a prediction about any particular client.

Scheme
No auth
Protected-resource metadata
✕Not found

Without it a client has to guess where the authorization server lives.

Anonymous access
Handshake succeeds; 2 tools listable

Tools

check_company_deadlinesuk_late_filing_penalties

Contract history

14 Oct 2026v1.60.03no contract changes
12 Oct 2026v1.60.02no contract changes
6 Oct 2026v1.59.00no contract changes
30 Sep 2026v1.58.01no contract changes
29 Sep 2026v1.58.00no contract changes
27 Sep 2026v1.57.03no contract changes
27 Sep 2026v1.56.01no contract changes
26 Sep 2026v1.53.001 cosmeticinstructions rewritten

Instructions rewritten: uk_late_filing_penalties. The description an agent follows changed; the callable contract may not have.

24 Sep 2026v1.49.00no contract changes
23 Sep 2026v1.48.00no contract changes
22 Sep 2026v1.47.00no contract changes
21 Sep 2026v1.46.00no contract changes
20 Sep 2026v1.45.00no contract changes
20 Sep 2026v1.43.00no contract changes
18 Sep 2026v1.42.00no contract changes
17 Sep 2026v1.41.00no contract changes
16 Sep 2026v1.39.01no contract changes
10 Sep 2026v1.37.00no contract changes
5 Sep 2026v1.36.00no contract changes
5 Sep 2026v1.35.00no contract changes
4 Sep 2026v1.34.00no contract changes
4 Sep 2026v1.23.01no contract changes
3 Sep 2026v1.22.00no contract changes
2 Sep 2026v1.20.00first recorded contract

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Status badge

Status for a README, from the last probe — cached an hour, so up to seven hours behind the endpoint. Links back to this page.

MCP status badge for PromptFiling — UK company deadlines
[![MCP status](https://mcpi.app/servers/promptfiling-uk-company-deadlines/badge.svg)](https://mcpi.app/servers/promptfiling-uk-company-deadlines)