io.github.kimotostudio/jp-data-mcp

JP Data (Japanese Public Business Data)

Is the JP Data (Japanese Public Business Data) MCP server down? Yes. It has given no valid answer since 2026-11-04: crashed on start.

Japanese open-data MCP server: corporate-number validation, zengin bank codes, national holidays

crashed on start down since 2026-11-04 · probed 2026-11-15 · unchanged since 2026-11-11

MCP error -32000: Connection closed
Using CPython 3.13.18
Creating virtual environment at: .venv
error: failed to create directory `/work/bundle/.venv`: Read-on

Bundle: https://github.com/kimotostudio/jp-data-mcp/releases/download/v0.1.0/jp-data-mcp-0.1.0.mcpb (MCPB, for a client that installs bundles; probed in a container with the network off)
Host: github.com
Repository: https://github.com/kimotostudio/jp-data-mcp
Registry: active, updated 2026-08-05 · registry entry

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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.

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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 2026-11-04, in every probe since then.
The process exited on start before it answered initialize. The error output is above.