⚡ SUB-SECOND INFERENCE ROUTING — Now in general availability Get started ->

Build AI apps faster. One API key. Zero downtime.

Route to OpenAI, Anthropic, Gemini, and Groq effortlessly. We handle the fallbacks, semantic caching, and rate limits so you can focus on shipping.

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No credit card required. 10,000 free tokens.

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your_app.py

import openai

client = openai.OpenAI(

base_url = "https://api.sentinelgateway.com/v1",

api_key = "sg_..."# your Sentinel key

)

Works with every major LLM provider out of the box

OpenAI Anthropic Google Gemini Groq LangChain LlamaIndex

The AI infrastructure layer your app needs

Active Fallback Routing

If OpenAI rate-limits you or goes down, we instantly route to Anthropic, Gemini, or Groq. Your users never see an error.

Deterministic Semantic Caching — $0.00 Cache Hits

Stop paying for identical questions. Our Semantic Cache serves repeat prompts in under 50ms for exactly zero tokens.

Zero-Trust PII Scrubbing

Block Prompt Injections, redact email addresses, SSNs, and credit card numbers before they reach any LLM — with a single toggle.

Drop in. No refactoring required.

Add SentinelGateway to your existing AI stack with two lines of code. No new SDK, no breaking changes, no downtime.

Two lines. Every model. Instant security.

Replace your OpenAI base_url with our endpoint. Your existing code instantly gains intelligent fallbacks, semantic caching, and zero-trust PII scrubbing — no SDK changes required.

Compatible with all OpenAI SDK versions
Works with LangChain, LlamaIndex, and AutoGen
Enterprise BYOK — zero platform markups

your_app.py

# Before: standard OpenAI client

import openai

client = openai.OpenAI(
base_url="https://api.sentinelgateway.com/v1",
api_key="sg_..."
)

# After: every model, with fallbacks + cache

resp = client.chat.completions.create(
model="claude-3-opus", # or gpt-4o, gemini
messages=[{"role": "user", "content": "Hello!"}]
)

Find a plan that's right for you

Start free and scale as you grow. No credit card required for the Developer tier.

Developer

$ 0 /mo

For developers evaluating the platform. No credit card required.

Start For Free ->

Includes:

10,000 free tokens / month
OpenAI routing (gpt-* models)
Basic usage dashboard
Community support

Sound too good? Hear what our customers have to say

SentinelGateway always has a head start and introduces cutting-edge AI routing features first. Our fallback coverage has been flawless.

SentinelGateway has made a huge impact on our compliance posture. PII scrubbing runs automatically — we never worry about data leaks reaching our LLMs.

The semantic cache cut our OpenAI spend by 40% in the first week. Identical prompts just fly back instantly — for zero tokens.

SentinelGateway is the tool devs love. The more you make infrastructure invisible, the more they can focus on building great AI products.

SentinelGateway handles every stage of our AI pipeline — routing, caching, security. It's become the de facto infrastructure for everything LLM-related.

With SentinelGateway I can actually ship reliable AI apps without a dedicated MLOps team. Two lines of config and everything just works.

It's not just easier to swap providers — it's also easier to add new team members. Everyone works against the same unified API key.

SentinelGateway's zero-trust security helps keep our team lean. PII blocking and prompt injection detection make us compliant without hiring a security team.

SentinelGateway enables speed and scale. We route millions of tokens a day across three providers and haven't seen a single user-facing error.

Stop juggling API keys. Start building.

Get 10,000 Free Tokens ->