io.github.RobertAlsop/companies-house
UK Companies House
Is the UK Companies House MCP server down? No. Installed with mcp<2, it started and listed its tools on 2026-10-31.
UK Companies House with cleaning - 12 tools for search, profiles, officers, PSCs, filings, and more.
needs mcp<2 probed 2026-11-14 · unchanged since 2026-10-31
A plain install of the package stops at the import below. These tool definitions are from a second install with mcp<2, started in a container with the network off, on 2026-10-31.
MCP error -32000: Connection closed ModuleNotFoundError: No module named 'mcp.server.fastmcp'. This is mcp 2.x, where FastMCP was renamed to MCPServer (from mcp
- Run it
- uvx --with 'mcp<2' bartram-companies-house@0.3.3 (stdio, probed in a container with the network off)
- Host
- pypi.org
- Reports itself as
- bartram-companies-house 1.30.0
- Capabilities
- experimental, prompts, resources, tools
- Repository
- https://github.com/RobertAlsop/bartram_foundry
- Registry
- active, updated 2026-04-05 · registry entry
- Changes
- 2 recorded, reachable in 0 of them. A row is added when the result, the tool count or the cost changes.
Most expensive tools
Estimates with the o200k_base tokenizer.
| Tool | o200k estimate | Share of this server |
|---|---|---|
| uk_companies_house_advanced_search | 327 | 19 % |
| uk_companies_house_filings | 171 | 10 % |
| uk_companies_house_disqualified_officer | 153 | 9 % |
| uk_companies_house_officer_search | 139 | 8 % |
| uk_companies_house_psc | 129 | 7 % |
Compare this server with others, or with the servers that share its tool set.
Same tool set as 3 other servers
These registry entries have the same tool names and the same schema sizes.
More servers
Other registry entries on pypi.org, the ones next to this name; all of them.
- io.github.Rinava/umbryn-mcp · needs env
- io.github.RizgarOzan/playcal · alive
- DAiL Marketplace io.github.Rizzzo21/dail-marketplace · timeout
- UK Charity Commission for England and Wales io.github.RobertAlsop/charity-commission · needs mcp<2
- UK Environment Agency Open Data io.github.RobertAlsop/environment-agency · needs mcp<2
- UK FCA Financial Services Register io.github.RobertAlsop/fca-register · needs mcp<2
- io.github.Roberton003/mcp-server-decisions · alive
- taken io.github.RogueAlg0/taken · crashed on start
Servers that mention companies.
- Balanços.AI ai.balancos/mcp · needs auth
- Builders in Fintech ai.buildersinfintech/fintech-data · alive
- Data Center Index ai.datacenterindex/datacenterindex · needs auth
- DataForB2B ai.dataforb2b/dataforb2b · needs auth
- DataMerge MCP ai.datamerge/mcp · alive
- ai.echoloc/company-technographics · alive
- ai.enginy/mcp · needs auth
- Fiber AI ai.fiber/mcp · alive
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-31 07:39 | needs mcp<2 | 1.3 s | 12 | 3.0k | 1.7k |
| 2026-10-17 06:18 | crashed on start |
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The package imports FastMCP from mcp.server.fastmcp. mcp 2.0, the Python SDK of 28 July 2026, renamed FastMCP to MCPServer, and the package asks for mcp with no upper bound, so a plain install (uvx, pip) gets mcp 2.x and the server stops at the import. Installed with mcp<2, it starts and lists its tools. The fix for the publisher: pin mcp<2 in the dependencies, for example mcp>=1.2,<2, and publish a new version, or move to MCPServer as the SDK's migration guide says. Until then, run it with uvx --with 'mcp<2'.
The cause and the fix, with the code before and after: ModuleNotFoundError: No module named 'mcp.server.fastmcp'