You can find your API key by clicking your name at the bottom left of the app and selecting "API key" from the menu.
You can generate a personal API key anytime, regardless of your plan type.
The full API documentation, with all endpoints and examples, is at public.api.twain.ai/v2/docs. Please use the v2 API - v1 is deprecated.
If you work from Claude or another MCP client, you can also connect our MCP server instead: select "Install MCP" from the same menu, or add mcp.api.twain.ai directly.