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treg.to MCP Server

by superdesigndev Your server? Claim it
answering

treg.to is answering right now. Last checked 4 min ago. Last commit 24 Oct 2026.

OpenRouter for tools and data. Compare catalog providers and call them from one hosted MCP endpoint.

Uptime history 56 days of history · worst day 99%
56 days agonow
100.0%
Uptime 24h
91 of 91 checks
—
Tools
hidden behind auth
410 ms
Response time
average over 24h
6 033
Stars
last commit 24 Oct 2026

What the code does

We read the source, 57 min ago · rules 995398eba69f

Evidence

Things with no honest explanation: a promise that contradicts the code, code that runs at install time while hiding what it does, data leaving the machine.

Reads secrets and sends them out src/treg/cli.py:2993
    env = dict(os.environ)
Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

  const probe = spawnSync(process.platform === 'win32' ? 'where' : 'which', ['treg'], {
    proc = subprocess.Popen(argv, env=env)
Executes code built at runtime src/treg/application/web_arena_quality.py:33
        insert = __import__(f"sqlalchemy.dialects.{dialect}", fromlist=["insert"]).insert
Unsafe deserialization src/treg/domain/catalog/store.py:339
        data = yaml.load(path.read_text(encoding="utf-8"), Loader=_Loader)
Dumps the whole environment src/treg/shell.py:279, src/treg/cli.py:2993
    env = dict(os.environ)
    tb.innerHTML = d.endpoints.map(e => {
Reads files and sends them to the network src/treg/cli.py:698
            cands = sorted((d.name for d in base.iterdir() if d.is_dir()

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

We found things in this code

Code changes quietly between releases, and nobody reads the diff of a dependency. We do, on every release — watch treg.to and you get told the day something new turns up.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.

run in your terminal
claude mcp add treg --transport http https://treg.to/mcp
Settings → Connectors → Add custom connector, then paste this address
https://treg.to/mcp
~/.codex/config.toml
[mcp_servers.treg]
url = "https://treg.to/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "treg": {
      "url": "https://treg.to/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "treg": {
      "type": "http",
      "url": "https://treg.to/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URLTransportStateLatencyChecked
https://treg.to/mcp streamable-http sign-in 373 ms 4 min ago

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treg.to — questions

Answers built from our own checks of this server.

Why is there no tool list for treg.to?
The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.
Is treg.to working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 410 ms. The bar chart above shows every period we have measured.
How do I connect treg.to?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.
How do you sign in to treg.to?
No API key is involved. treg.to answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.
How fast is treg.to?
It answers our handshake in 410 ms on average, which is faster than 34% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is treg.to open source?
We cannot say either way: written in Python, 6 033 stars on GitHub and 21 open issues, but we could not determine the licence, and without one the code is not open source by default.