Agent C — App Store Screenshots README

Agent C — App Store screenshots MCP server

Ask your AI agent to make your App Store screenshots. Agent C's MCP server lets Claude Code, Cursor, Codex, Claude Desktop (or any MCP client) upload your app's raw screenshots, have Claude design a finished App Store set, edit it, and send it straight into your app's draft version in App Store Connect.

Remote server: https://api.theagentc.io/mcp (Streamable HTTP)
Auth: Authorization: Bearer <your Agent C API key>. Create a key at app.theagentc.io/settings
Website: theagentc.io/mcp

Code

You: make App Store screenshots for my app from the screenshots in ./screens
     Open with a lifestyle photo. Show me the previews before unlocking anything.

What it does

Tool	What it does
`list_apps`	Your apps in Agent C, with how many screenshots each has.
`add_app`	Add an app by its App Store link, or by name if it isn't released yet.
`get_upload_link`	A one-time link your agent `curl`s raw screenshots to, so multi-MB images never pass through the chat.
`upload_screenshots`	Upload screenshots as base64 or public https URLs (for agents without a shell).
`design_set`	Claude art-directs a full set: opening shot (hand, app icon, lifestyle photo or phone), a headline per slide, UI close-ups, colors from your app. Returns preview images the agent can see.
`get_set`	Current slides, unlock status and fresh previews.
`edit_set`	Change a headline, swap a screenshot, reorder or remove a slide, switch the layout, opening shot or device size. Free.
`unlock_set`	Uses a free unlock if available; otherwise returns a $9.99 checkout link for you to open. Studio subscribers are already unlocked.
`export_set`	Clean PNGs at exact App Store Connect sizes (6.9″ 1320×2868, 6.5″ 1284×2778, iPad 13″ 2064×2752).
`send_to_app_store`	Uploads the set into your app's editable version in App Store Connect, replacing that language's screenshots for that device size. Never submits for review.

Setup

Create an API key in Agent C → Settings → Use Agent C from your AI agent. The setup snippets there are pre-filled with your key.

Claude Code

Terminal

claude mcp add --transport http agent-c https://api.theagentc.io/mcp --header "Authorization: Bearer YOUR_AGENT_C_KEY"

Cursor (~/.cursor/mcp.json)

config.json

{
  "mcpServers": {
    "agent-c": {
      "url": "https://api.theagentc.io/mcp",
      "headers": { "Authorization": "Bearer YOUR_AGENT_C_KEY" }
    }
  }
}

Codex (~/.codex/config.toml, then export AGENTC_KEY=...)

toml

[mcp_servers.agent-c]
url = "https://api.theagentc.io/mcp"
bearer_token_env_var = "AGENTC_KEY"
tool_timeout_sec = 300

Claude Desktop (Settings → Developer → Edit Config)

config.json

{
  "mcpServers": {
    "agent-c": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://api.theagentc.io/mcp", "--header", "Authorization:${AGENTC_AUTH}"],
      "env": { "AGENTC_AUTH": "Bearer YOUR_AGENT_C_KEY" }
    }
  }
}

You stay in control

Designing and editing are free; previews are watermarked until a set is unlocked.
Your agent can't pay: unlocking hands you a checkout link.
Nothing is ever submitted for review. Screenshots land in a draft version you check in App Store Connect.
API keys only reach the studio (apps, screenshots, sets, App Store Connect upload), never billing or your account, and can be revoked anytime.
App Store Connect API keys you connect are encrypted at rest and used only when you send.

Pricing

Free to design. $9.99 to unlock a finished set, or Studio ($29.99/month, or $199/year) for every set and the full canvas editor.

Agent C — App Store screenshots MCP server

What it does

Setup

You stay in control

Pricing

Links