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MCP server report

CortexPlus MCP server

io.cortexplus/cortexplus

We checked this server on 2 November 2026 with McpStamp Check engine 1.2.0. It scored 97 of 100 (grade A), higher than 84.8% of the 33,003 registry servers that responded over HTTPS that day. Ready for ChatGPT, Gemini and MCP Registry. Not ready for Claude.

Measured facts

Score
97A
Sign-in
OAuth
Tools listed
11
Protocol version
2025-06-18
Stores

Store readiness

StoreStatusReason
Claude Connectors Directory Not ready Blocked by Resource metadata "resource" equals the server URL.
ChatGPT app directory Ready No blocking check failed.
Gemini Connected Apps Ready No blocking check failed.
Official MCP Registry Ready No blocking check failed.

MCP Registry ready means a valid public remote for the registry, not that the server is listed in a store.

Fixes

One check to fix

  1. Fails

    Resource metadata "resource" equals the server URL

    auth_resource

    Blocks Claude.

    Measured resource https://mcp.cortexplus.io is not the server URL https://mcp.cortexplus.io/mcp

    Serve metadata whose "resource" is exactly https://mcp.cortexplus.io/mcp (Claude requires an exact match, path included), e.g. at /.well-known/oauth-protected-resource/mcp.

25 checks passed, 1 did not run

Passed. Served over HTTPS, initialize over Streamable HTTP, Supported protocol version negotiated, JSON or SSE response Content-Type, JSON-RPC error for unknown method, GET answers SSE or 405, initialize latency, serverInfo name and version, Server instructions, tools capability declared, Sign-in method the store supports (OAuth or none), Protected resource metadata (RFC 9728), 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, 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.

Not run. 401 carries WWW-Authenticate resource_metadata. These need an OAuth sign-in flow the check could not reach.

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.

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McpStamp score for CortexPlus

Markdown

[![McpStamp score](https://www.mcpstamp.com/badge?url=https%3A%2F%2Fmcp.cortexplus.io%2Fmcp)](https://www.mcpstamp.com/r/io-cortexplus-cortexplus/)

HTML

<a href="https://www.mcpstamp.com/r/io-cortexplus-cortexplus/"><img src="https://www.mcpstamp.com/badge?url=https%3A%2F%2Fmcp.cortexplus.io%2Fmcp" alt="McpStamp score" height="20"></a>
Registry entry

About this server

Personal memory layer: files, notes, messages, tasks and email, semantically indexed.
Registry name
io.cortexplus/cortexplus
Remote URL
https://mcp.cortexplus.io/mcp
Version
0.1.0
Website
cortexplus.io/connect
Checked
2 November 2026, engine 1.2.0, no credentials

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.

More grade A servers

All grade A servers · All server reports · State of MCP readiness, November 2026