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Heimdall MCP Server

by erayendes Your server? Claim it
local only

Heimdall runs on your own machine — the client starts it, so there is no endpoint to ping. 380 installs a week from npm. Last commit 18 Sep 2026.

Every App Store Connect + StoreKit 2 endpoint. 890 tools in 13 profiles, narrow to 27.

Installs per day peak 250 · avg 44 · +203% w/w
a month agotoday
380
Installs / week
npm · @erayendes/asc-mcp
47
Stars
0 open issues
18 Sep 2026
Last commit
0 releases in 90 days
MIT
License
TypeScript

What the code does

We read the source, 12 h ago · rules 3dff92dd89df

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.

Runs an external command src/setup.ts:406, src/clients.ts:290
        execFileSync(opener, [KEYS_URL], { stdio: 'ignore' });

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

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

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.

run in your terminal
claude mcp add asc-mcp -- npx -y @erayendes/asc-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "asc-mcp": {
      "args": [
        "-y",
        "@erayendes/asc-mcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.asc-mcp]
command = "npx"
args = ["-y", "@erayendes/asc-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "asc-mcp": {
      "args": [
        "-y",
        "@erayendes/asc-mcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "asc-mcp": {
      "args": [
        "-y",
        "@erayendes/asc-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: ASC_KEY_ID (App Store Connect API Key ID. Normally written for you by `npx -y @erayendes/asc-mcp setup`.), ASC_ISSUER_ID (App Store Connect Issuer ID (a UUID). Normally written for you by `setup`.), ASC_PRIVATE_KEY (The .p8 private key as PEM text. Prefer `setup`, which stores it in the macOS Keychain instead of any config file; set this only where a Keychain is unavailable, such as CI.), ASC_PRIVATE_KEY_PATH (Path to the .p8 file, as an alternative to pasting its contents. Off macOS this is what `setup` records.), ASC_BUNDLE_ID (Bundle ID of one app. Only needed by the StoreKit 2 transaction tools on the monetization profile.). The author declared them in the registry entry; get the values from the project itself.

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Heimdall — questions

Answers built from our own checks of this server.

Why is there no uptime for Heimdall?
Heimdall 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 @erayendes/asc-mcp was installed 380 times last week.
How do I connect Heimdall?
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 @erayendes/asc-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use Heimdall?
The npm package @erayendes/asc-mcp was installed 380 times in the last week. Week over week that is +203%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Heimdall open source?
Yes — it is published under the MIT licence, written in TypeScript and 47 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.