One API, every major model
OpenAI, Anthropic, Google, and open models — all through a single unified endpoint.
Works with every model — bring your keys, or let us run it
The reliability & accountability layer for your AI spend. We catch failures, show you what they cost, and make sure you don't pay for them. Bring your own keys, or let us run the whole thing.
Join the waitlist
Get early access details for BYOK and Managed.
Early-stage — this previews the concept, not a shipping product.
In the path
Failover · Verify · Report
Provider
OpenAI
Provider
Anthropic
Provider
Provider
Open models
In-path layer
Good calls
Billed normally
Broken calls
Caught & priced
Managed: broken calls credited back
Core capabilities
One API for every major model, automatic failover, a unified usage view, and live cost, latency, and health decisions. The difference: every failed call is measured, priced, and surfaced in a monthly loss report.
OpenAI, Anthropic, Google, and open models — all through a single unified endpoint.
When a provider is down or rate-limited, requests go to the next healthy option automatically, in real time.
Usage tracking and a single activity statement across all providers, no matter how many you use simultaneously.
Choose by cost, latency, and live provider health so every request lands on the best available option.
Convenience is table stakes. Dashboards show activity. Defendr shows what broke, what it cost, and what you can recover.
Two ways in
Either way you get one API, automatic failover, and the monthly loss report from day one. The difference is how far we take accountability.
Platform fee
Parity pricing
Keep your own provider accounts and pay providers directly. Our platform fee is on par with any model router — so switching is low-friction. Your keys, your provider bill, your data.
Managed
Prepaid
Use our managed accounts — prepay us, and we handle the provider relationships. When calls break, we credit you back. "Don't pay for bad calls" becomes fully real: the losses the report identified are recoverable.
The reliability layer
Getting calls to a model is table stakes. Defendr catches failures — measuring them, pricing them, and showing you exactly what they're costing you.
We instrument every call and send you a monthly breakdown — timeouts, empty output, hard refusals, and billing anomalies, each categorized and priced. You see exactly what failures are costing you, not just that they happened.
We flag billing anomalies, redundant calls, and cheaper-model opportunities — and share the resulting savings with you. Your bill becomes verifiable.
A tamper-proof record of every call — inputs, outputs, latency, tokens — so compliance reviews and auditors have the data they need, already organized.
We flag when a provider silently degrades or swaps a model, measured against a fixed reference benchmark. You find out immediately — not when a prompt stops working in production.
Your keys, your data — built with security and compliance in mind. SOC 2 is on the roadmap.
How it works
Bring your own provider API keys — you pay providers directly, and we sit in path. Or let us run the whole thing, with nothing for you to set up.
Bring your provider API keys and continue paying providers directly. Start with the same spend pattern you already know: no new accounts, no lock-in, no new token pricing model to learn.
We instrument every call in-path and send a monthly loss report — every timeout, empty response, and billing anomaly logged, categorized, and priced, so you see exactly what failures cost you.
Move to Managed, prepay us, and use our provider accounts — then we credit you back on broken calls. The report showed what you were losing; the cushion helps you recover it.
Aligned incentives
Basic model access gives you convenience. We add visibility, reliability, and a path to real loss recovery.
We make money when your AI works — we share the savings we find you, and in Managed we credit you back when it breaks. Our incentive is your reliability, not your token count.
Both — one API to every model, with parity platform pricing.
Both. We move around failures in real time.
Us only — either way. Every broken call logged, categorized, and priced.
Us only — Managed mode. We credit you back on broken calls.
Us only — either way. A verifiable record of every call, and an early warning when the model quietly changes behind its version label.
FAQ
What we're building
Bring your own keys to see and price failures from day one. Move to Managed when you're ready to get credits back on broken calls.
Early-stage — this previews the concept, not a shipping product.