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Open Darwin and create or sign in to your account. Darwin gives each person one private personal AI. You can also create or join a business AI when you are authorized to represent that business.

Use Darwin yourself

Start in the web app. Choose your personal or business AI and give it a goal. Darwin keeps the conversation and progress together, and asks for your approval before billable work or sensitive changes.

Use Darwin from another AI

Connect your client to https://mcp.darwin.so/mcp. Complete Darwin’s browser sign-in and consent flow when prompted. The client receives scoped access; it does not need your password or a pasted API key. See MCP for setup.

Build with Darwin

Create an API key in Developer settings for server-side use. Keep the secret out of browser code, mobile apps, source control, logs, and prompts. See the API interface for REST, JavaScript, Python, and CLI.
Only operate an AI you own or are permitted to represent. An application acting for another person must use that person’s authorized connection; an application ID or user ID alone does not grant access.