io.github.MaxMLang/cxg-census-mcp

cxg-census-mcp

Is the cxg-census- MCP server down? Yes. It has given no valid answer since 2026-10-19: crashed on start.

MCP server for the CZ CELLxGENE Census. Single-cell, ontology-aware. Community, unaffiliated.

crashed on start down since 2026-10-19 · probed 2026-11-14 · unchanged since 2026-10-26

MCP error -32000: Connection closed
AttributeError: 'Server' object has no attribute 'list_tools'
  File "/work/uv/cxg-census-mcp/lib/python3.12/site-packages/c

Run it: uvx cxg-census-mcp@0.1.2 (stdio, probed in a container with the network off)
Host: pypi.org
Repository: https://github.com/MaxMLang/cxg-census-mcp
Website: https://github.com/MaxMLang/cxg-census-mcp
Registry: active, updated 2026-04-22 · registry entry

Compare this server with others.

More servers

Other registry entries on pypi.org, the ones next to this name; all of them.

rapidbm25 io.github.Maverick0351a/rapidbm25 · alive
valvur io.github.MaverickHQ/valvur · alive
io.github.MaxEllis/orcaslicer-mcp · alive
Compartment io.github.MaxFreedomPollard/compartment · alive
Maximo Enterprise MCP io.github.MaxisTechnology-Dev/maximo-mcp · needs env
Carbon Footprint Calculator io.github.MayankTalwar0/carbon-footprint-mcp · needs mcp<2
io.github.MayankTalwar0/startup-finance-metrics · needs mcp<2
io.github.Maytrella007/protonlite · needs args

Servers that mention census.

Close API city.close/close-api · alive
AgentNative: Public Data, Government Datasets, Federal Statistics & Official Records com.cazimedia.agentnative/government-public-open-data-datasets-federal-state-city-statistics-census-records-police-education-schools · alive
HiringCensus com.hiringcensus/hiring-census · alive
com.lastminutedealshq/ai-visibility · alive
The MCP Census com.mcpcensus/census · alive
UK Civic & Parliamentary Data MCP Server from MCPBundles com.mcpbundles/uk-civic-parliamentary · needs auth
Census ACS Demographics com.olyport/census · alive
Census County Business Patterns com.olyport/census-cbp · alive

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.

Atom feed

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

No valid answer since 2026-10-19, in every probe since then.
The process exited on start before it answered initialize. The error output is above.

The cause and the fix, with the code before and after: AttributeError: 'Server' object has no attribute 'list_tools'