Cosmonote MCP server
ai.cosmonote/notes
We checked this server on 2 November 2026 with McpStamp Check engine 1.2.0. It scored 46 of 100 (grade F), higher than 6.8% of the 33,003 registry servers that responded over HTTPS that day. Not ready for Claude, ChatGPT, Gemini and MCP Registry.
Measured facts
- Score
- 46F
- Sign-in
- Not detected
- Tools listed
- 0
- Protocol version
- None returned
Store readiness
| Store | Status | Reason |
|---|---|---|
| Claude Connectors Directory | Not ready | Blocked by initialize over Streamable HTTP. |
| ChatGPT app directory | Not ready | Blocked by initialize over Streamable HTTP. |
| Gemini Connected Apps | Not ready | Blocked by initialize over Streamable HTTP. |
| Official MCP Registry | Not ready | Blocked by initialize over Streamable HTTP. |
MCP Registry ready means a valid public remote for the registry, not that the server is listed in a store.
One check to fix
- Fails
initialize over Streamable HTTP
initializeBlocks Claude, ChatGPT, Gemini and MCP Registry.
Measured
HTTP 400, text/plain body without a JSON-RPC resultAnswer POST {"method":"initialize"} with a JSON-RPC result (application/json or text/event-stream) on this exact URL.
2 checks passed, 24 did not run
Passed. Served over HTTPS, GET answers SSE or 405.
Not run. Sign-in method the store supports (OAuth or none), 401 carries WWW-Authenticate resource_metadata, Protected resource metadata (RFC 9728), Resource metadata "resource" equals the server URL, Authorization server metadata (RFC 8414 / OIDC), First metadata URL Gemini tries answers 200 with the required fields, issuer equals the authorization_servers entry; token_endpoint_auth_methods_supported (ChatGPT), PKCE S256 advertised, Client registration (DCR or Client ID Metadata Documents), refresh_token grant advertised. These need an OAuth sign-in flow the check could not reach.
Not run. Supported protocol version negotiated, JSON or SSE response Content-Type, JSON-RPC error for unknown method, initialize latency, serverInfo name and version, Server instructions, tools capability declared, tools/list returns tools, inputSchema is an object schema, Tool names are valid and portable, readOnlyHint or destructiveHint on every tool, Explicit readOnlyHint, destructiveHint and openWorldHint (ChatGPT), Human-readable title on every tool, Tool descriptions. An earlier step did not return what these checks need.
Run a fresh check
This page is the 2 November 2026 snapshot. If you maintain this server and have shipped fixes since then, re-check it. The live check and the badge show the current result, and the next snapshot will pick up the change.
README badge
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Markdown
[](https://www.mcpstamp.com/r/ai-cosmonote-notes/)
HTML
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About this server
Access your Cosmonote audio notes, transcriptions, summaries, and action items.
The description above is the server's own text from the official MCP Registry. If a result looks wrong, run a fresh check and email support@zovo.one with the report link.
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All grade F servers · All server reports · State of MCP readiness, November 2026