# PromptFiling — UK company deadlines

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

- name: uk.co.promptfiling/deadlines
- version: 1.11.03
- connection class: R0 (autonomous)
- trust: 79/100 flags: no-repository
- quality: 85/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/uk.co.promptfiling%2Fdeadlines
- tools: https://api.protogrid.dev/v1/servers/uk.co.promptfiling%2Fdeadlines/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "deadlines": {
      "type": "http",
      "url": "https://mcp.promptfiling.co.uk/"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 99
- freshness: 85
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-98% ~updated-60d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 85/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 2 of 2 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: check_company_deadlines (destructiveHint, idempotentHint); uk_late_filing_penalties (destructiveHint, idempotentHint)
- pass `tools.token_cost`: about 246 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 1 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 2, about 246 tokens to load them all
- tool set hash: 8487d2b6a2fa256482f40539661c25e8
- tools last changed: 2026-09-26T21:19:20.628Z
- badge: [![protogrid quality](https://protogrid.dev/badge/uk.co.promptfiling/deadlines.svg)](https://protogrid.dev/servers/uk.co.promptfiling/deadlines)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-09-26 `uk_late_filing_penalties` changed (description)
  - before: The current Companies House late-filing penalty bands for a private company's annual accounts, the doubling rule for two late years running, and what missing a confirmation statement risks. Static reference — no lookup performed.
  - after: The current Companies House late-filing penalty bands for annual accounts — private companies and public companies (plc) — the doubling rule for two late years running, and what missing a confirmation statement risks. Static reference — no lookup performed.

Full history: https://api.protogrid.dev/v1/servers/uk.co.promptfiling%2Fdeadlines/changes

## Remotes

- https://mcp.promptfiling.co.uk/ (streamable-http, auth none, reachable true, uptime30d 0.9831933)

## Packages

_none_

## Tools (2)

- `check_company_deadlines`: Look up a UK limited company by company number (preferred — e.g. 01234567 or SC123456) or by name, and get its statutory Companies House deadlines: when annual accounts and the confirmation statement are due, days remaining, the automatic late-filing penalty for accounts, and dormancy signals from the public register. Free, no account; data from the official Companies House register.
- `uk_late_filing_penalties`: The current Companies House late-filing penalty bands for annual accounts — private companies and public companies (plc) — the doubling rule for two late years running, and what missing a confirmation statement risks. Static reference — no lookup performed.