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MCP servers, properly addressed MCP server

Which servers in the official MCP registry are MCP servers, properly addressed's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-26

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Whose server it is
  • Registry nametc.mcp/mcp-tcverified in the MCP registry

The registry name sits under mcp.tc. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-26
  • Stateanswerschecked 2026-10-26
  • Tools3
  • Server calls itselfmcp.tc
  • Server version1.1.0
  • Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 541 ms.

Should an agent connect itNot proven either way yet
  • Its tools do find an MCP server by name or topic, but not follow a server and get emailed when its tools change.
  • Checked on 1 of the 7 days it takes to judge reliability.

Once connected

  • For "find an MCP server by name or topic", the likely first call is search_servers.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 1, the first on 2026-10-26
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 1 so far
  • What an agent can do with it1 of 2 use cases
  • Answeredmeasuring1 of the 7 daily checks it takes to print a share
  • Median first answer509 ms
  • Space in an agent's context≈ 656 tokensthe definitions of all its tools (3), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results3 of 3 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • can do · find an MCP server by name or topic
  • not sure · add an MCP server to Claude, Cursor or VS Code
  • cannot · follow a server and get emailed when its tools change

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers3 tools · read 2026-10-26
  • search_servers

    Search the mcp.tc directory of MCP servers by keyword, category or how they connect. Returns compact results, featured servers first, then the most viewed on mcp.tc, each with its slug and mcp.tc link. Call get_server with a slug for the…

  • get_server

    Everything about one listing: what it does, its tools, how it signs in, the server's own endpoint URL or install command, and setup steps for Claude Code, Claude Desktop, claude.ai, ChatGPT, Cursor, VS Code, Devin Desktop, Codex, Gemini…

  • list_categories

    The directory's categories with their slugs and how many servers each holds. Pass a slug as the category of search_servers.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "mcp-tc": {
      "type": "http",
      "url": "https://mcp.tc/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http mcp https://mcp.tc/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://mcp.tc/mcp as a custom connector in the settings.

OpenAPI spec

13 paths, read 2026-10-26. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.