@mindstone-engineering/mcp-server-runway

@mindstone-engineering/mcp-server-runway

Runway ML MCP server for Model Context Protocol hosts. Generate AI video, images, audio, speech, sound effects, and manage custom voices — all through a standardised MCP interface powered by Runway's generative AI models.

Requirements

• Node.js 20+
• npm

Quick Start

Install & build

cd <path-to-repo>/connectors/runway
npm install
npm run build

npx (once published)

npx -y @mindstone-engineering/mcp-server-runway

Local

node dist/index.js

Configuration

Environment variables

• RUNWAYML_API_SECRET — Runway API key (from dev.runwayml.com)
• MCP_HOST_BRIDGE_STATE — optional path to a host bridge state file used for credential management
• MINDSTONE_REBEL_BRIDGE_STATE — backwards-compatible alias for MCP_HOST_BRIDGE_STATE
• RUNWAY_REQUEST_TIMEOUT_MS — optional override (positive integer ms, max 30 min) for the outbound HTTP request timeout applied to Runway JSON API and host-bridge calls. Default: 60000 (60s). Raise this if you see TIMEOUT errors on slow submits; lower it if you want tighter bounds.
• RUNWAY_UPLOAD_TIMEOUT_MS — optional override (positive integer ms, max 30 min) for the signed-URL upload leg of uploadEphemeral (large local-file uploads). Default: 600000 (10 min). Sized for up-to-200MB uploads on typical consumer uplinks (~5 Mbps) with comfortable headroom; raise for slower connections or lower for tighter bounds.

Host configuration examples

Claude Desktop / Cursor

{
  "mcpServers": {
    "Runway": {
      "command": "npx",
      "args": ["-y", "@mindstone-engineering/mcp-server-runway"],
      "env": {
        "RUNWAYML_API_SECRET": "your-api-key"
      }
    }
  }
}

Local development (no npm publish needed)

{
  "mcpServers": {
    "Runway": {
      "command": "node",
      "args": ["<path-to-repo>/connectors/runway/dist/index.js"],
      "env": {
        "RUNWAYML_API_SECRET": "your-api-key"
      }
    }
  }
}

Tools (22)

Configuration

• configure_runway_api_key — Save your Runway API key

Video

• generate_video_from_image — Animate a still image into a video
• generate_video_from_text — Create a video from a text description
• generate_video_from_video — Re-style or transform an existing video
• character_performance — Animate a character with facial expressions and body movements (Act-Two)

Image

• generate_image — Generate an image from text, optionally with reference images

Audio

• generate_speech — Generate spoken audio from text using ElevenLabs voices
• generate_sound_effect — Generate sound effects from a text description
• swap_voice — Replace the voice in an audio or video file
• dub_audio — Translate and dub audio into a different language
• isolate_voice — Isolate voice from background audio

Voices

• list_custom_voices — List all custom voices you've created
• create_custom_voice — Create a custom voice from a text description
• preview_voice — Generate a short audio preview of a voice
• delete_custom_voice — Delete a custom voice

Task management

• check_runway_task — Check the status of a generation task
• wait_for_runway_task — Wait for a task to complete (auto-poll)
• cancel_runway_task — Cancel or delete a task
• download_runway_output — Download a Runway output to a local file
• upload_media — Upload a local file to Runway's ephemeral storage

Account

• get_runway_balance — Check credit balance, tier limits, and usage
• query_credit_usage — Query detailed credit usage by model and day

Licence

FSL-1.1-MIT — Functional Source License, Version 1.1, with MIT future licence. The software converts to MIT licence on 2030-04-08.