Plug into the stack you already pay for.

For AI models, no — the Universal Key proxies Anthropic, OpenAI, Google AI, and OpenRouter, billed against your braincell credits. For third-party services like Stripe or Slack, you add that provider's key to your project's environment variables in the workspace Settings tab, and the agent reuses it on every relevant turn.

No. braincell is an AI coding agent — it writes the integration code. Every service listed here is something the agent can wire into your project directly from the provider's documentation. There is no separate connector dashboard to maintain.

The agent reads docs the way humans do. If your service has a REST or GraphQL API, paste the doc URL in chat and the agent will wire it up. Request a first-party integration at hello@braincell.sh and we will prioritise based on demand.

Each integration follows the upstream provider's limits (Stripe, Slack, etc.). The agent can add retry and idempotency handling to the code it writes so your app survives transient errors.

Third-party keys live as project environment variables and are injected into the sandbox as a .env.local file at build time. They are never echoed back into chat. Treat them like any production secret — rotate them from the provider's dashboard if exposed.