The backend your agent app needs, and nothing it doesn't.
AgentKit Cloud is the managed backend for apps built with the AgentKit SDK. Plug in your provider keys, point your app at our endpoint, and we run the streaming, the auth passthrough, and the bookkeeping. You keep your keys out of the client and your team out of the infra business.
How it works
Three steps from SDK to production.
Bring your keys
Add your Anthropic, OpenAI, Gemini, and media-provider keys once. We encrypt them at rest and decrypt only in-flight, so they never ship in your client.
Point your app at the endpoint
Swap your SDK provider to AgentKit Cloud. No SDK rewrite. The same agents, tools, and UI, now talking to a backend instead of a key in the binary.
We run the backend
Streaming, auth verified on every turn, rate limits, spend caps, and usage bookkeeping, all server-side. You keep writing the app.
What you get
The backend, fully managed.
Your provider keys, encrypted in our care.
Paste your Anthropic, OpenAI, and Gemini keys once. We hold them in AES-256-GCM with a master key in Fly secrets, decrypt only in-flight, and never log them.
Your auth. Verified, every turn.
Sign in with Apple, Firebase, your own JWKS, or a raw public key. Configure trusted issuers once per project. We validate the user JWT on every request.
See which user burned which tokens.
Every inference call is bucketed by the validated user. Top consumers, monthly spend, error rates per user, all visible in your dashboard in real time.
Spend caps that hold when requests race.
Per-user rate limits in Redis. Monthly spend ceilings with atomic budget reservation, so racing requests can't burst past your cap.