Mast MCP Server

by mrfentmen Your server? Claim it

local only

Mast MCP runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 23 Sep 2026.

Keyless MCP server for MAST: Hubble, Webb, TESS observations by sky position.

—

Installs / week

npm · @mrfentmen/mast-mcp

Stars

0 open issues

23 Sep 2026

Last commit

0 releases in 90 days

—

License

TypeScript

Nothing serious here today

Today is the operative word: we check Mast MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mast-mcp -- npx -y @mrfentmen/mast-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mast-mcp": {
      "args": [
        "-y",
        "@mrfentmen/mast-mcp"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mast-mcp]
command = "npx"
args = ["-y", "@mrfentmen/mast-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "mast-mcp": {
      "args": [
        "-y",
        "@mrfentmen/mast-mcp"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mast-mcp": {
      "args": [
        "-y",
        "@mrfentmen/mast-mcp"
      ],
      "command": "npx"
    }
  }
}

Alternatives to Mast MCP

same job, measured the same way

MCP Server Search

by bytedance

MCP server for web search operations

144 installs/wk local only

Bom MCP

by mrfentmen

Keyless BOM Australia forecasts and station observations.

local only

Inbody API MCP

by rwestergren

MCP server for InBody body-composition data — scans, body fat, muscle mass, body water

117 installs/wk local only

Fred MCP

by mrfentmen

MCP server for FRED economic data: series, observations. Needs a free API key.

local only

HotkeylessAHK MCP Skill

by tim0-12432

MCP server for Hotkeyless AHK HTTP API.

38 installs/wk local only

Chesscom MCP

by mrfentmen

Keyless MCP server for Chess.com: player profiles, ratings by time control, daily puzzle,...

270 installs/wk local only

Harness

by asklokesh

MCP server for Harness API integration

52 installs/wk local only

Alphafold MCP

by mrfentmen

Keyless MCP server for AlphaFold: protein structure predictions by UniProt accession, confidence...

157 installs/wk local only

Mast MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Mast MCP?

Mast MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @mrfentmen/mast-mcp.

How do I connect Mast MCP?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls @mrfentmen/mast-mcp straight from npm; nothing to host, nothing to sign up for.

Is Mast MCP open source?

We cannot say either way: written in TypeScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.