tc39-mcp

What you can do with tc39-mcp

tc39-mcp is a Model Context Protocol (MCP) server published by xyzzylabs. It ranks #4,726 of 167,945 active servers on MCP Toplist, and its repository has 2 GitHub stars. tc39-mcp is listed across 3 registries — Official MCP, PulseMCP and Glama, with 18 tracked versions. It was first listed on May 30, 2026 and most recently updated on Oct 7, 2026.

What tc39-mcp can and cannot do

MCP Toplist connected to the public endpoint on Nov 3, 2026 and it listed 17 tools. Tool names are not stored, so what they do is not catalogued here.

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

What you need before using tc39-mcp

Connect tc39-mcp and confirm it works

claude mcp add --transport http tc39-mcp https://mcp.xyzzylabs.ai/tc39/mcp

claude mcp add tc39-mcp -- npx -y tc39-mcp

[mcp_servers.tc39-mcp]
url = "https://mcp.xyzzylabs.ai/tc39/mcp"

[mcp_servers.tc39-mcp]
command = "npx"
args = ["-y", "tc39-mcp"]

https://mcp.xyzzylabs.ai/tc39/mcp

{
  "mcpServers": {
    "tc39-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "tc39-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "tc39-mcp": {
      "url": "https://mcp.xyzzylabs.ai/tc39/mcp"
    }
  }
}

{
  "mcpServers": {
    "tc39-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "tc39-mcp"
      ]
    }
  }
}

{
  "servers": {
    "tc39-mcp": {
      "type": "http",
      "url": "https://mcp.xyzzylabs.ai/tc39/mcp"
    }
  }
}

{
  "servers": {
    "tc39-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "tc39-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "tc39-mcp": {
      "serverUrl": "https://mcp.xyzzylabs.ai/tc39/mcp"
    }
  }
}

{
  "mcpServers": {
    "tc39-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "tc39-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "tc39-mcp": {
      "url": "https://mcp.xyzzylabs.ai/tc39/mcp"
    }
  }
}

{
  "mcpServers": {
    "tc39-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "tc39-mcp"
      ]
    }
  }
}

When to choose another server

• wasm-mcp#6,685

No task-specific alternatives are catalogued for tc39-mcpyet; the list above is its publisher's other servers.

What changed, and when this was checked

First listed

May 30, 2026

Latest version published

Oct 7, 2026

Version history

18 versions tracked (below)

Requirements evidence

Verified by MCP Toplist on Nov 3, 2026: the public endpoint completed the MCP handshake and listed 17 tools without credentials.

Profile checked

Not yet — purpose, capabilities and requirements above come from registry data only

Ranking data as of

Nov 3, 2026

Do you maintain tc39-mcp? Claim it to correct or enrich this profile.

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

[![MCP Toplist](https://mcptoplist.com/badge/io.github.xyzzylabs%2Ftc39-mcp.svg)](https://mcptoplist.com/server/io.github.xyzzylabs%2Ftc39-mcp)

<a href="https://mcptoplist.com/server/io.github.xyzzylabs%2Ftc39-mcp"><img src="https://mcptoplist.com/badge/io.github.xyzzylabs%2Ftc39-mcp.svg" alt="MCP Toplist: Top 5% of 167,945" /></a>

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