io.github.adelaidasofia/substack-mcp

FastMCP server for Substack — publish Notes and posts, pull analytics, manage dr

Is the FastMCP server for Substack MCP server down? Yes. It has given no valid answer since 2026-10-31: crashed on start.

FastMCP server for Substack — publish Notes and posts, pull analytics, manage drafts, pluggable…

crashed on start down since 2026-10-31 · probed 2026-11-14 · unchanged since 2026-11-07

MCP error -32000: Connection closed
ModuleNotFoundError: No module named 'httpx'
Traceback (most recent call last):
  File "/work/bundle/server.py", line 18, in

Bundle: https://github.com/adelaidasofia/substack-mcp/releases/download/v0.1.0/substack-mcp.mcpb (MCPB, for a client that installs bundles; probed in a container with the network off)
Host: github.com
Repository: https://github.com/adelaidasofia/substack-mcp
Registry: active, updated 2026-05-20 · registry entry

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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 2026-10-31, in every probe since then.
The process exited on start before it answered initialize. The error output is above.