billing

Wattfare is an OAuth-style way for apps to let users connect and fund their own AI usage with a monthly cap. It offers an SDK, OpenAI-compatible model access, and support for Vercel AI SDK workflows.

Paid public API for finance built on the Neurobro agent. The docs show API key authentication, a single ask endpoint, tier-based modes, billing, rate limits, errors, examples, and a quickstart.