Keytween for developers and agents

Add it to your agent

{
  "mcpServers": {
    "keytween": {
      "type": "http",
      "url": "https://keytween.com/mcp",
      "headers": {
        "Authorization": "Bearer ${KEYTWEEN_API_KEY}"
      }
    }
  }
}

Save this as .mcp.json in your project root and put your API key in the KEYTWEEN_API_KEY environment variable. Setup for every agent

Get started

• Overview: What you can build, the core concepts and which path to take.
• Connect your agent (MCP): Add the MCP server to Claude Code, Cursor, VS Code, Codex, Gemini CLI and other agent harnesses.
• Workflows and use cases: Which calls to make for images, edits, references, each video mode and multi-shot films.
• Game sprites and icons: Exact-size transparent PNG sprites and UI icons for games: generating, editing, sizes and consistent sets.

Prompting guides

• Prompting images: How to write text-to-image prompts: structure, composition, lighting and text in images.
• Prompting edits and references: Instruction-style edits, what to keep, and carrying subjects over with @references.
• Prompting video and sound: Shot, scene, action, camera and audio for text, image and first-and-last-frame video.

Reference

• Sizes and durations: Every aspect ratio and resolution, clip lengths and frame rates.
• Credits and pricing: What each generation costs, how to estimate a project and how refunds work.
• Jobs, waiting and limits: Statuses, timeouts, queueing, concurrency limits and error codes.
• MCP tool reference: Every MCP tool, resource and prompt the server exposes.
• REST API reference: Authentication, endpoints, request bodies and errors.
• Your data and deleting it: Where API and agent creations are stored, how to review them and how to delete them.