One API key. Every model. Zero downtime.
Route across OpenAI, Anthropic, Gemini, and Groq through a single OpenAI-compatible endpoint. When a provider rate-limits or goes down, Sentinel fails over automatically — your users never see an error.
No credit card required · Drop-in OpenAI SDK compatible · Live in 60 seconds.
# Point your existing OpenAI SDK at Sentinel
client = OpenAI(
base_url="https://sentinelgateway.ai/v1",
api_key="sg-...", # one key → every provider
)Live failover simulation
AUTO-REPLAYHow it works
Three stages, executed in-line on every request — no sidecars, no async queues, no added infrastructure.
Ingest & Normalize
Your request arrives in OpenAI chat-completions format. Sentinel validates auth, enforces quotas, and normalizes the payload into a provider-agnostic envelope — regardless of destination.
In-Flight Evaluation
The router resolves the model prefix to a provider, checks health signals, and dispatches. On a 429, 5xx, or timeout, the failover pipeline retries an equivalent model — then a universal safety net if needed.
Upstream Delivery & Audit
The response is translated back to OpenAI wire format — streamed token-by-token when requested — while latency, tokens, cost, and fallback status are written to your audit log.
Enterprise impact, measured
The numbers your platform team will report back after the first month.
99.99%
Effective uptime
Multi-provider failover absorbs single-vendor outages.
~13ms
Gateway overhead
Compiled Go binary. No Python GIL, no framework tax.
0ms
User-facing failover
429s and 5xxs reroute in-line before the client notices.
4
Providers, one key
OpenAI, Anthropic, Gemini, and Groq behind one endpoint.
Stop babysitting provider outages.
Sign up in 60 seconds. Get 10,000 free tokens instantly. Failover included on every tier.
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