Heimdall

Name: Heimdall
Author: erayendes

by erayendesversion 2.8.0i★ –iRuns on your computer

Registry nameio.github.erayendes/asc-mcp

Install

Overview

Description from the maker (original English)

Every App Store Connect + StoreKit 2 endpoint. 929 tools in 13 profiles, narrow to 27.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other
You need to fill in: ASC_PRIVATE_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: ASC_KEY_ID, ASC_ISSUER_ID, ASC_PRIVATE_KEY, ASC_PRIVATE_KEY_PATH, ASC_BUNDLE_ID

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "asc": {
      "command": "npx",
      "args": [
        "-y",
        "@erayendes/asc-mcp"
      ],
      "env": {
        "ASC_KEY_ID": "your-value",
        "ASC_ISSUER_ID": "your-value",
        "ASC_PRIVATE_KEY": "your-value",
        "ASC_PRIVATE_KEY_PATH": "your-value",
        "ASC_BUNDLE_ID": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add asc --env ASC_KEY_ID=your-value --env ASC_ISSUER_ID=your-value --env ASC_PRIVATE_KEY=your-value --env ASC_PRIVATE_KEY_PATH=your-value --env ASC_BUNDLE_ID=your-value -- npx -y @erayendes/asc-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "asc": {
      "command": "npx",
      "args": [
        "-y",
        "@erayendes/asc-mcp"
      ],
      "env": {
        "ASC_KEY_ID": "your-value",
        "ASC_ISSUER_ID": "your-value",
        "ASC_PRIVATE_KEY": "your-value",
        "ASC_PRIVATE_KEY_PATH": "your-value",
        "ASC_BUNDLE_ID": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "asc": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@erayendes/asc-mcp"
      ],
      "env": {
        "ASC_KEY_ID": "your-value",
        "ASC_ISSUER_ID": "your-value",
        "ASC_PRIVATE_KEY": "your-value",
        "ASC_PRIVATE_KEY_PATH": "your-value",
        "ASC_BUNDLE_ID": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

ASC_KEY_ID env
App Store Connect API Key ID. Normally written for you by `npx -y @erayendes/asc-mcp setup`.
ASC_ISSUER_ID env
App Store Connect Issuer ID (a UUID). Normally written for you by `setup`.
ASC_PRIVATE_KEY secret env
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 env
Path to the .p8 file, as an alternative to pasting its contents. Off macOS this is what `setup` records.
ASC_BUNDLE_ID env
Bundle ID of one app. Only needed by the StoreKit 2 transaction tools on the monetization profile.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account erayendes, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32712 servers in this category
Published to the registry more recently than 75% of the other 32712 servers in this category
Basic checks equal to or better than 100% of the other 32712 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Heimdall safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: ASC_PRIVATE_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (2.8.0) reached the registry 12 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Aiterm MCP

Alternatives

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Heimdall — App Store Connect MCP

Your whole App Store Connect account, in one tool.

🇬🇧 English · 🇹🇷 Türkçe

Ask, and it answers. Tell it, and it's done.

- *"Summarize this week's 1-star reviews and draft replies."*

- *"Which builds are stuck in review?"*

- *"Raise this subscription's price in every country."*

- *"What does this subscription cost in each country?"*

- *"Which screenshots are on the store listing?"*

- *"Add build 42 to the Internal and External groups."*

- *"Why did my Xcode Cloud build fail?"*

Almost anything you'd click through App Store Connect to do, you can now just ask your AI to do. More examples in the Guide.

A real AI session, sped up. The App Store Connect account is a stand-in so the recording can be public.

Heimdall

One MCP server for the App Store Connect API and the App Store Server API (StoreKit 2), built from Apple's own OpenAPI specification. 13 profiles, 33 sub-profiles, 929 tools.

Apple's specification lists 1011 API operations. Heimdall leaves out the 123 that Apple has deprecated, so 888 become tools, and adds 41 hand-written ones: 929 tools in all.

Most App Store Connect MCP servers give you a hand-picked slice of the API. That works until you need the one endpoint they left out, and then you're off hunting for yet another tool.

Heimdall does the opposite: it gives you the whole API, organized into profiles. Apps and metadata, versions, TestFlight, subscriptions and in-app purchases, pricing, reviews, Game Center, Xcode Cloud, provisioning, webhooks, sales and finance reports — all of it. You pick what you need, and add or remove profiles whenever you like.

Profiles shows what each one covers. You don't have to memorize any of it, though: ask *"Is there a tool for in-app events?"* and Heimdall tells you which profile has it.

Not sure which profiles you need? The starter packs suggest a set for your role.

Runs on your machine

Most MCP guides recommend remote HTTP servers. Heimdall runs locally instead. It reads your App Store Connect key from the Keychain, signs a short-lived token and talks to Apple directly. Nothing sits in between, so your key stays with you.

[!NOTE]

Give your key the narrowest role that does the job. Roles explains what each App Store Connect role can do.

Asks before risky changes

Before changing a price, giving someone Admin access or deleting something, Heimdall asks you to confirm and shows what will change. This is on by default for changes that are hard to undo: revenue, deletions, infrastructure and access, and for the release steps that reach users: sending a version to review, releasing it, changing a phased rollout, and opening a build to external testers. Everything else goes through your app's own approval.

Works alongside Fastlane

Heimdall doesn't replace Fastlane; it complements it. Fastlane for the pipeline, Heimdall for everything you'd otherwise do by hand.

Setup

One command:

npx -y @erayendes/asc-mcp setup

It asks whether to continue in your browser (recommended) or the terminal. You'll need an App Store Connect API key; the browser page tells you which role to give it from what you pick, so you can run setup before creating the key. Node.js 20.19 or later.

Want your AI to install it for you, or to use it in Xcode 27? Everything else is in Setup.

About the name and the project

In Norse mythology, Heimdall keeps watch over Bifröst, the rainbow bridge that links Asgard to the nine realms. Here, his job is to guard the road between your App Store Connect account and your machine. That's where the name comes from.

I build Heimdall on my own, in the evenings, and release it free and open source under the MIT license. If it gets you out of the App Store Connect dashboard, it has done its job.

License

Heimdall is generated from the App Store Connect OpenAPI specification published by Apple Inc. App Store Connect, TestFlight, StoreKit, Xcode and Game Center are trademarks of Apple Inc. This project is not affiliated with Apple Inc.

Heimdall

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Aiterm MCP

README from the maker

Heimdall — App Store Connect MCP

Heimdall

Runs on your machine

Asks before risky changes

Works alongside Fastlane

Setup

About the name and the project

License