App Store Connect MCP Server

The App Store Connect intelligence layer for your coding agent. 13 tools that think, 3 slash-command workflows, and a bundled Claude Skill. Not another API wrapper.

Maintained successor to JoshuaRileyDev/app-store-connect-mcp-server (archived Feb 2026). Different angle, same API surface plus more.

npm install -g @pofky/asc-mcp
asc-mcp install-skill   # one-line, optional, for auto-routed review questions

What Makes This Different

Other ASC MCP servers wrap the API and give you 80 to 293 raw endpoints. This one gives you 13 opinionated tools, 3 slash-command Prompts, and a Claude Skill that all think. Two of the tools use MCP Sampling: your own client's model does the LLM work, so there is no extra cost from this server.

No context switching. No portal. Just ask.

Setup (3 minutes)

Step 1. Create an API key in App Store Connect > Integrations > App Store Connect API (Admin or App Manager role), then grab three things from that same page:

• Issuer ID (ASC_ISSUER_ID): the UUID shown at the top of the page, with a copy button next to it.

• Key ID (ASC_KEY_ID): the 10-character ID next to your key, also in the filename AuthKey_XXXXXXXXXX.p8.

• .p8 file (ASC_PRIVATE_KEY_PATH): click Download and point this at the saved file. Apple lets you download it only once, so keep it safe.

Step 2. Install:

npm install -g @pofky/asc-mcp

Add to ~/.claude/settings.json (Claude Code) or your agent's MCP config:

{
  "mcpServers": {
    "appstore-connect": {
      "command": "asc-mcp",
      "env": {
        "ASC_KEY_ID": "YOUR_KEY_ID",
        "ASC_ISSUER_ID": "YOUR_ISSUER_ID",
        "ASC_PRIVATE_KEY_PATH": "~/.appstore/AuthKey_XXXX.p8"
      }
    }
  }
}

Step 3. Ask your agent: "List my App Store Connect apps"

Works with Claude Code, Cursor, Windsurf, Cline, and any MCP-compatible client.

Tools

Free (no account needed)

Pro ($9/mo)

Coming next (Week 3): rejection-risk scoring against the 2026 corpus (guideline 2.3 metadata, 4.0 design, privacy-AI 5.1.2).

Get Pro | Retrieve your license key

How Sampling works (zero extra cost)

triage_reviews and draft_review_response use the MCP Sampling primitive. When you call one of these tools, this server sends a sampling/createMessage request back to your own MCP client. Your client runs the LLM locally (Claude Desktop uses your account; Claude Code uses its session). We never call Anthropic from our side.

Outcome: review clustering and reply drafting cost you exactly what you would pay for any other Claude request, not a penny more from this server.

If your MCP client does not support Sampling yet, both tools return a structured degraded: true result with a clear explanation. Upgrade Claude Desktop or Claude Code to a recent version for full functionality.

Slash Commands (Prompts)

Type these in Claude Desktop or Claude Code and the agent runs a pre-built multi-tool workflow:

These are MCP Prompts per the spec. Zero other App Store Connect MCP ships with them.

Claude Skill (one-line install)

After installing the MCP, run:

asc-mcp install-skill

This copies a small asc-review-triage Skill to ~/.claude/skills/ so Claude automatically picks up review-related questions ("any bad reviews lately?", "what do my users say?", "ratings this week?") and calls the right ASC tools without you having to explain the workflow each time.

Works on macOS, Linux, and Windows. To remove: asc-mcp uninstall-skill.

Real Output Examples

"Run a preflight check before I submit"

Release Preflight: v2.3

State: PREPARE_FOR_SUBMISSION
Platform: IOS

PASS (with 1 warning)

Warnings (recommended):
- Missing screenshot set for APP_IPHONE_67. May be required.

Passing checks: 4
- [en-US] Description OK (3874/4000 chars).
- [en-US] Keywords OK (96/100 chars).
- 2 screenshot set(s) found across 1 locale(s).
- Build 40 attached and valid.

Total: 4 pass, 1 warn, 0 fail

"Morning briefing"

Daily Briefing - 2026-04-13

2 apps in your account

Tempo: Habit Builder
- Latest: v2.3 (IOS) - Waiting for Review
- Action needed: v2.3 is Waiting for Review
- Reviews (last 3d): 5 new, avg 4.2 stars

NightOwl Weather
- Latest: v1.1 (IOS) - Live
- No new reviews in the last 3 days

"Generate release notes from git"

Git History for Release Notes

Since: v2.2.0
Commits: 8
Character limit: 4000 chars for "What's New"

New Features (3)
- feat: add habit streak calendar view
- feat: dark mode support
- add widget for home screen

Bug Fixes (2)
- fix: notification timing off by 1 hour
- fix: crash on iPad when rotating

Instructions: Write user-facing "What's New" text.
Lead with the most impactful change. Keep under 4000 chars.

Why This One Over the Free Alternatives?

Raw wrappers give you endpoints. This gives you answers.

Security

Your credentials never leave your machine:

• The .p8 private key is read locally. JWT tokens are generated on your computer.

• API calls go directly from your machine to api.appstoreconnect.apple.com.

• The license server sees only your license key string. Zero Apple data, zero credentials.

• Fully open source. Read the code.

Works With

• Claude Code (Anthropic)

• Cursor

• Windsurf

• Cline

• Any client supporting the Model Context Protocol

Requirements

• Node.js 18+

• Apple Developer Program membership

• App Store Connect API key (Admin or App Manager role)

Legal

• Privacy Policy

• Terms of Service

This project is not affiliated with, endorsed by, or sponsored by Apple Inc. Apple, App Store, App Store Connect, TestFlight, iOS, and macOS are trademarks of Apple Inc.

License

MIT