Runway Dev integrations Use Dev MCP for live account context and management when connected. Use the official SDK and current Runway Dev docs for application code. MCP access and an application API key serve different purposes: MCP authenticates the agent with browser OAuth; the SDK uses a project API key on the application server. Start with the project Inspect the existing application, identify its server boundary and intended user flow, and make progress with the information already available. Ask only when a missing choice blocks implementation. For a client-only app, add or identify a ser…