App Store Connect MCP Server

A Model Context Protocol server for the App Store Connect API.
Manage apps, builds, TestFlight, reviews, and more — directly from Claude.

Works with:

Overview

asc-mcp is a Swift-based MCP server that bridges Claude (or any MCP-compatible host) with the App Store Connect API. It exposes 208 tools across 25 workers, enabling you to automate your entire iOS/macOS release workflow through natural language.

Key capabilities

• Multi-account — manage multiple App Store Connect teams from a single server
• Full release pipeline — create versions, attach builds, submit for review, phased rollout
• TestFlight automation — beta groups, testers, build distribution, localized What's New
• Build management — track processing, encryption compliance, readiness checks
• Customer reviews — list, respond, update, delete responses, aggregate statistics
• In-app purchases — CRUD for IAPs, localizations, price points, review screenshots
• Subscriptions — subscription CRUD, groups, localizations, prices, offer codes, win-back offers
• Provisioning — bundle IDs, devices, certificates, profiles, capabilities
• Marketing — screenshots, app previews, custom product pages, A/B testing (PPO), promoted purchases
• Analytics & Metrics — sales/financial reports, analytics reports, performance metrics, diagnostics
• Metadata management — localized descriptions, keywords, What's New across all locales

Quick Start

# 1. Install via Mint
brew install mint
mint install zelentsov-dev/asc-mcp@1.4.0

# 2. Add to Claude Code with env vars (simplest setup)
claude mcp add asc-mcp \
  -e ASC_KEY_ID=XXXXXXXXXX \
  -e ASC_ISSUER_ID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx \
  -e ASC_PRIVATE_KEY_PATH=/path/to/AuthKey.p8 \
  -- ~/.mint/bin/asc-mcp

Or use a JSON config file — see Configuration below.

Prerequisites

Installation

Option A: Mint (recommended)

Mint is the simplest way to install — one command, no manual cloning.

# Install Mint (if you don't have it)
brew install mint

# Install asc-mcp from GitHub
mint install zelentsov-dev/asc-mcp@1.4.0

# Register in Claude Code
claude mcp add asc-mcp -- ~/.mint/bin/asc-mcp

To install a specific branch or tag:

mint install zelentsov-dev/asc-mcp@main      # main branch
mint install zelentsov-dev/asc-mcp@develop    # develop branch
mint install zelentsov-dev/asc-mcp@1.4.0      # specific tag

To update to the latest version:

mint install zelentsov-dev/asc-mcp@1.4.0 --force

Option B: Build from Source

git clone https://github.com/zelentsov-dev/asc-mcp.git
cd asc-mcp
swift build -c release

# Register in Claude Code
claude mcp add asc-mcp -- $(pwd)/.build/release/asc-mcp

cp .build/release/asc-mcp /usr/local/bin/asc-mcp

Configuration

1. App Store Connect API Key

1. Go to App Store Connect → Users and Access → Integrations → Team Keys
2. Click Generate API Key — select appropriate role (Admin or App Manager recommended)
3. Download the .p8 private key file (you can only download it once!)
4. Note the Key ID and Issuer ID

2. Companies Configuration

asc-mcp supports three configuration methods (checked in this order):

Option A: Environment Variables (recommended for MCP clients)

Single company — simplest setup:

export ASC_KEY_ID=XXXXXXXXXX
export ASC_ISSUER_ID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
export ASC_PRIVATE_KEY_PATH=/path/to/AuthKey.p8
# or pass the key content directly:
# export ASC_PRIVATE_KEY="-----BEGIN PRIVATE KEY-----\nMIGT..."
# optional:
# export ASC_COMPANY_NAME="My Company"
# export ASC_VENDOR_NUMBER=YOUR_VENDOR_NUMBER          # for analytics

Multiple companies — numbered variables:

export ASC_COMPANY_1_NAME="My Company"
export ASC_COMPANY_1_KEY_ID=XXXXXXXXXX
export ASC_COMPANY_1_ISSUER_ID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
export ASC_COMPANY_1_KEY_PATH=/path/to/AuthKey1.p8
export ASC_COMPANY_1_VENDOR_NUMBER=YOUR_VENDOR_NUMBER   # optional, for analytics

export ASC_COMPANY_2_NAME="Client Corp"
export ASC_COMPANY_2_KEY_ID=YYYYYYYYYY
export ASC_COMPANY_2_ISSUER_ID=yyyyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy
export ASC_COMPANY_2_KEY_PATH=/path/to/AuthKey2.p8

Numbering starts at 1. The server scans while ASC_COMPANY_{N}_KEY_ID exists.

Option B: JSON Config File

Create ~/.config/asc-mcp/companies.json:

{
  "companies": [
    {
      "id": "my-company",
      "name": "My Company",
      "key_id": "XXXXXXXXXX",
      "issuer_id": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
      "key_path": "/Users/you/.keys/AuthKey_XXXXXXXXXX.p8",
      "vendor_number": "YOUR_VENDOR_NUMBER"
    },
    {
      "id": "client-company",
      "name": "Client Corp",
      "key_id": "YYYYYYYYYY",
      "issuer_id": "yyyyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyyyy",
      "key_path": "/Users/you/.keys/AuthKey_YYYYYYYYYY.p8",
      "vendor_number": "YOUR_VENDOR_NUMBER"
    }
  ]
}

Note: vendor_number is required for analytics tools (analytics_sales_report, analytics_financial_report, analytics_app_summary). Find it in App Store Connect → Sales and Trends → Reports.

Configuration Priority

The server resolves configuration in this order:

1. --companies /path/to/companies.json (CLI argument)
2. Constructor parameter (programmatic)
3. ASC_MCP_COMPANIES=/path/to/companies.json (env var pointing to JSON file)
4. Default JSON file paths (~/.config/asc-mcp/companies.json, etc.)
5. ASC_COMPANY_1_KEY_ID ... (multi-company env vars)
6. ASC_KEY_ID + ASC_ISSUER_ID (single-company env vars)

3. MCP Host Configuration

claude mcp add asc-mcp -- ~/.mint/bin/asc-mcp

{
  "mcpServers": {
    "asc-mcp": {
      "command": "/path/to/asc-mcp",
      "env": {
        "ASC_KEY_ID": "XXXXXXXXXX",
        "ASC_ISSUER_ID": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
        "ASC_PRIVATE_KEY_PATH": "/path/to/AuthKey.p8"
      }
    }
  }
}

{
  "mcpServers": {
    "asc-mcp": {
      "command": "/path/to/asc-mcp",
      "env": {
        "ASC_KEY_ID": "XXXXXXXXXX",
        "ASC_ISSUER_ID": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
        "ASC_PRIVATE_KEY_PATH": "/path/to/AuthKey.p8"
      }
    }
  }
}

[mcp_servers.asc-mcp]
command = "/path/to/asc-mcp"
startup_timeout_sec = 20
tool_timeout_sec = 60
enabled = true

{
  "mcpServers": {
    "asc-mcp": {
      "command": "/path/to/asc-mcp",
      "timeout": 60000,
      "env": {
        "ASC_KEY_ID": "XXXXXXXXXX",
        "ASC_ISSUER_ID": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
        "ASC_PRIVATE_KEY_PATH": "/path/to/AuthKey.p8"
      }
    }
  }
}

{
  "servers": {
    "asc-mcp": {
      "command": "/path/to/asc-mcp",
      "env": {
        "ASC_KEY_ID": "XXXXXXXXXX",
        "ASC_ISSUER_ID": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
        "ASC_PRIVATE_KEY_PATH": "/path/to/AuthKey.p8"
      }
    }
  }
}

{
  "mcpServers": {
    "asc-mcp": {
      "command": "/path/to/asc-mcp",
      "env": {
        "ASC_KEY_ID": "XXXXXXXXXX",
        "ASC_ISSUER_ID": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
        "ASC_PRIVATE_KEY_PATH": "/path/to/AuthKey.p8"
      }
    }
  }
}

{
  "mcpServers": {
    "asc-mcp": {
      "command": "/path/to/asc-mcp",
      "args": ["--workers", "apps,builds,versions,reviews,beta_groups,iap"],
      "env": {
        "ASC_KEY_ID": "XXXXXXXXXX",
        "ASC_ISSUER_ID": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
        "ASC_PRIVATE_KEY_PATH": "/path/to/AuthKey.p8"
      }
    }
  }
}

Worker Filtering

The server exposes 208 tools across 25 workers. Some MCP clients impose a tool limit (e.g., Windsurf caps at 100). Use --workers to enable only the workers you need:

# Only load apps, builds, and version lifecycle tools
asc-mcp --workers apps,builds,versions

# Full release workflow subset (~60 tools, fits within any client limit)
asc-mcp --workers apps,builds,versions,reviews,beta_groups,iap

# Monetization focus
asc-mcp --workers apps,iap,subscriptions,offer_codes,winback,pricing,promoted

company and auth workers are always enabled regardless of the filter (they provide core multi-account and authentication functionality).

When builds is enabled, it automatically includes build_processing and build_beta sub-workers.

Available worker names:

Token Cost

When connected to an LLM client, tool definitions consume context tokens. Here's the approximate footprint:

Heaviest workers: Provisioning (17 tools), InAppPurchases (17 tools), Subscriptions (15 tools), AppLifecycle (13 tools), Screenshots (12 tools).

For Claude (200K context) ~22K tokens is ~5–7% — negligible. For clients with smaller context windows, use --workers to reduce the footprint.

Available Tools

208 tools organized across 25 workers (use --workers to filter — see Worker Filtering):

Usage Examples

Complete Release Workflow

You: "Release version 2.1.0 of my app with build 456"

Claude will:
1. app_versions_create(app_id, platform: "IOS", version_string: "2.1.0")
2. app_versions_attach_build(version_id, build_id)
3. app_versions_set_review_details(version_id, contact_email: "...")
4. app_versions_submit_for_review(version_id)
5. app_versions_create_phased_release(version_id)  # after approval

TestFlight Distribution

You: "Create a beta group 'External Testers' and distribute the latest build"

Claude will:
1. beta_groups_create(app_id, name: "External Testers")
2. builds_list(app_id, limit: 1)  # find latest
3. builds_set_beta_localization(build_id, locale: "en-US", whats_new: "...")
4. beta_groups_add_testers(group_id, tester_ids: [...])

Review Management

You: "Show me all 1-star reviews from the last week and draft responses"

Claude will:
1. reviews_list(app_id, rating: 1, sort: "-createdDate", limit: 50)
2. reviews_create_response(review_id, response_body: "...")  # for each

Multi-Company Workflow

You: "Switch to ClientCorp and check their latest build status"

Claude will:
1. company_switch(company: "ClientCorp")
2. apps_list(limit: 5)
3. builds_list(app_id, limit: 1)
4. builds_get_processing_state(build_id)

API Constraints

Architecture

Sources/asc-mcp/
├── EntryPoint.swift                # Entry point, --workers filtering
├── Core/
│   ├── Application.swift           #   MCP server setup & initialization
│   └── ASCError.swift              #   Custom error types
├── Helpers/                        # JSON formatting, pagination, safe helpers
├── Models/                         # API request/response models
│   ├── AppStoreConnect/            #   Apps, versions, localizations
│   ├── Builds/                     #   Builds, beta details, beta groups
│   ├── AppLifecycle/               #   Version lifecycle models
│   ├── InAppPurchases/             #   IAP models
│   ├── Subscriptions/              #   Subscriptions, offer codes, win-back
│   ├── Marketing/                  #   Screenshots, custom pages, PPO, promoted
│   ├── Metrics/                    #   Performance metrics, diagnostics
│   ├── Analytics/                  #   Sales/financial reports
│   ├── Provisioning/               #   Bundle IDs, devices, certificates
│   ├── Shared/                     #   Shared upload/image types
│   └── ...                         #   AppEvents, AppInfo, Pricing, Users
├── Services/
│   ├── HTTPClient.swift            #   Actor-based HTTP with retry logic
│   ├── JWTService.swift            #   ES256 JWT token generation
│   └── CompaniesManager.swift      #   Multi-account management
└── Workers/                        # MCP tool implementations (25 workers)
    ├── MainWorker/WorkerManager    #   Central tool registry & routing
    ├── CompaniesWorker/            #   company_* tools
    ├── AuthWorker/                 #   auth_* tools
    ├── AppsWorker/                 #   apps_* tools
    ├── BuildsWorker/               #   builds_* tools
    ├── BuildProcessingWorker/      #   builds_*_processing tools
    ├── BuildBetaDetailsWorker/     #   builds_*_beta_* tools
    ├── AppLifecycleWorker/         #   app_versions_* tools
    ├── ReviewsWorker/              #   reviews_* tools
    ├── BetaGroupsWorker/           #   beta_groups_* tools
    ├── BetaTestersWorker/          #   beta_testers_* tools
    ├── InAppPurchasesWorker/       #   iap_* tools
    ├── SubscriptionsWorker/        #   subscriptions_* tools
    ├── OfferCodesWorker/           #   offer_codes_* tools
    ├── WinBackOffersWorker/        #   winback_* tools
    ├── ProvisioningWorker/         #   provisioning_* tools
    ├── AppInfoWorker/              #   app_info_* tools
    ├── PricingWorker/              #   pricing_* tools
    ├── UsersWorker/                #   users_* tools
    ├── AppEventsWorker/            #   app_events_* tools
    ├── AnalyticsWorker/            #   analytics_* tools
    ├── ScreenshotsWorker/          #   screenshots_* tools
    ├── CustomProductPagesWorker/   #   custom_pages_* tools
    ├── ProductPageOptimizationWorker/ # ppo_* tools
    ├── PromotedPurchasesWorker/    #   promoted_* tools
    └── MetricsWorker/              #   metrics_* tools

Design Principles

• Swift 6 strict concurrency — all workers and services are Sendable, proper actor isolation
• Actor-based HTTP client — thread-safe with exponential backoff and retry logic
• Prefix-based routing — WorkerManager routes tool calls by name prefix (zero config)
• Minimal dependencies — only the MCP Swift SDK

Troubleshooting

Development

Building

swift build              # Debug build
swift build -c release   # Release build (optimized)
swift package clean      # Clean build artifacts

Test Mode

.build/debug/asc-mcp --test    # Runs built-in integration tests

Adding a New Tool

1. Create handler method in the appropriate Worker+Handlers.swift
2. Add tool definition in Worker+ToolDefinitions.swift
3. Register in worker's getTools() method
4. Add routing case in worker's handleTool() switch
5. The WorkerManager auto-routes by prefix — no changes needed there

Adding a New Worker

1. Create directory: Workers/MyWorker/
2. Create 3 files: MyWorker.swift, MyWorker+ToolDefinitions.swift, MyWorker+Handlers.swift
3. Add worker property and initialization in WorkerManager.swift
4. Add routing rule in WorkerManager.registerWorkers()
5. Add getMyTools() helper method

Contributing

We welcome contributions! See Contributing Guide for details.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Acknowledgments

• Model Context Protocol — the protocol specification and Swift SDK
• App Store Connect API — Apple's official REST API

_{This is an unofficial, community-maintained tool and is not affiliated with or endorsed by Apple Inc.}