Proxed AI
Secure AI API management for iOS apps with DeviceCheck
Proxed.AI is a secure proxy backend for iOS apps that protects your AI API keys and controls AI responses. Uses Apple DeviceCheck to lock down API keys and provides a visual schema builder to structure AI outputs.
Braintrust's AI proxy is actually already open source (MIT licensed) and can be self-deployed on Vercel, Cloudflare, AWS Lambda, or a plain Express server — the hosted version at api.braintrust.dev is just a managed convenience layer on top. If you're comparing it to other options because you want to fully decouple from Braintrust's broader observability/eval platform, other independent open-source AI gateways are worth a look.
FAQ
Is there a free, open-source alternative to the Braintrust proxy?
The Braintrust proxy itself is already MIT-licensed and self-hostable. If you want an independent option not tied to the Braintrust platform, Proxed AI (AGPL-3.0) is another self-hostable AI API gateway.
What's the best open-source alternative to the Braintrust proxy?
Proxed AI is a narrower tool, focused on securing AI API access for iOS apps specifically, rather than Braintrust's general multi-provider proxy.
What are the top open-source alternatives to the Braintrust proxy?
Browse all open-source alternatives to Portkey for more AI gateway options, or explore the full Developer Tools category.