io.github.popapidev/pop-mcp
io.github.popapidev/pop-mcp
Is the io.github.popapidev/pop-mcp MCP server down? No. It is up and needs auth (HTTP 401), probed 2026-11-15.
Italian e-invoicing (FatturaPA/SdI), Peppol, KSeF, ZUGFeRD, and PDF invoice generation via POP
needs auth probed 2026-11-15 · HTTP 401
Streamable HTTP error: Error POSTing to endpoint: {"error_code":"unauthorized_user","message":"Missing or invalid Authorization header. Expected: Authorization:- Endpoint
- https://mcp.popapi.io/mcp (streamable-http)
- Host
- mcp.popapi.io
- Package
- The publisher's package npm:@getpopapi/pop-mcp did not list its tools in the container: error, MCP error -32022: Unsupported protocol version: 2025-11-25 POP MCP Server running on stdio.
- Getting access
- The server answers HTTP 401 with no WWW-Authenticate header and no OAuth metadata, so the publisher's documentation is the only guide.
Read from the server's public OAuth metadata, without a token. Method. - Repository
- https://github.com/getpopapi/pop-mcp
- Registry
- active, updated 2026-10-29 · registry entry
- Changes
- 3 recorded, reachable in 3 of them. A row is added when the result, the tool count or the cost changes.
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History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-30 10:40 | needs auth | ||||
| 2026-10-27 06:57 | alive | 482 ms | 13 | 25k | 14k |
| 2026-10-20 06:44 | alive | 348 ms | 13 | 14k |
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 server answers HTTP 401 to an unauthenticated initialize, so the probe cannot list its tools. That is correct for a private server. Some public servers answer initialize and tools/list without credentials and ask for auth on tool calls only; those get a token count here.
Fixed something? Probe it now, with the same steps as the daily run. This page updates with the next daily run.