What is Proxed.AI?
Proxed.AI is a security proxy that protects AI provider API keys inside mobile apps, especially iOS apps that call OpenAI, Anthropic, or other LLM providers directly. Developers replace the provider URL with a Proxed endpoint so the real API key stays server side and every call passes Apple DeviceCheck attestation. The product is offered as a hosted service and an open source self hosted build.
Why Proxed.AI works
Bundling an AI provider key in a mobile app guarantees that someone will extract it from the binary and burn through the developer's billing. Proxed solves that by holding the real key behind a proxy that verifies each request comes from a legitimate iOS device, then enforces per user and per project rate limits. That replaces a custom backend a solo iOS developer would otherwise have to build and maintain.
Proxed.AI features
- URL only integration. Swap the AI provider's base URL for a Proxed endpoint so the iOS app needs one line of change instead of a new SDK or backend.
- DeviceCheck attestation. Each request is verified through Apple DeviceCheck so only real iOS devices can consume the key, blocking attackers replaying it from a script.
- Per user and per device rate limits. Granular limits on calls per user, device, or endpoint so a runaway prompt loop cannot drain the AI budget overnight.
- Response format enforcement. Lock outgoing responses to a structured format so the mobile client receives predictable JSON instead of free form model output.
- Cost guardrails and alerts. Set per project spending caps with real time alerts so a developer is notified before a usage spike turns into a five figure bill.
- Self hosted option. Open source build lets teams run Proxed inside their own infrastructure for compliance heavy use cases, free of subscription cost.
Who Proxed.AI is for
- Indie iOS developers shipping their first AI feature who cannot justify building a key proxy backend themselves.
- Production mobile teams adding LLM features to existing iOS apps that need DeviceCheck level abuse prevention.
- Privacy focused organisations that want a self hosted proxy inside their own VPC for regulated workloads.
- Hackathon and side project builders who need a free trial path before committing to a paid AI infrastructure plan.
Similar micro SaaS ideas you can build
- Android Play Integrity proxy. Equivalent service for Android developers that fronts AI provider calls with Play Integrity attestation and per device limits, sold annually.
- AI usage billing splitter for agencies. Proxy that lets an agency front their clients' AI keys, meter usage per client, and bill them with markup, priced per active client.
- Per feature kill switch dashboard. Operator console for product managers that toggles AI features off remotely when costs spike, sold to mobile product teams.
- Edge proxy for AI search apps. Lightweight gateway aimed at search SaaS that combines key proxying with semantic cache, billed per million tokens routed.
