Real-time LLM monitoring

Stop silent AI failures
before users find them.

Sentinel AI monitors every prompt and model response in real time, aggregates weak signals into a unified risk score, and gives you a plain-English explanation for every flag — without black-box complexity.

Integrates in under 10 minutesNo model changes requiredSelf-hostable
sentinel_analyze.py
from sentinel_sdk import SentinelClient
 
client = SentinelClient(api_key="sk-...")
 
# Monitor a prompt before sending to your LLM
result = client.analyze(
prompt=user_message,
response=llm_response,
)
 
if result.risk_score > 0.7:
print(result.explanation)
# "High prompt injection likelihood — unusual
# instruction pattern detected in user input."
Risk AnalysisFLAGGED
Prompt injection
82%
Distribution shift
54%
Policy violation
21%
<10 min
integration time
2 signals
input + output
100%
explainable flags
1 endpoint
/api/analyze
Features

Everything you need to ship LLMs safely.

Lightweight by default. No dashboards you don't need, no agents you can't audit.

Input & output monitoring

Analyze both sides of every LLM exchange. Sentinel catches risky user prompts before they hit your model and unsafe responses before they reach your users.

Unified risk score

Multiple weak signals — embedding drift, heuristic flags, policy checks — aggregate into one 0–1 risk score per exchange. No more stitching together separate tools.

Explainability first

Every flagged exchange gets a plain-English reason. Your team knows exactly why something was flagged, not just that it was. No black-box verdicts.

Distribution shift detection

Track prompt embedding similarity over time. Detect when your user population starts asking questions that deviate from your training baseline.

Real-time alerting

Get notified instantly when risk scores cross configurable thresholds. Slack, webhook, or email — wired to your existing on-call workflow.

Drop-in SDK

One pip install and two lines of code. Works alongside any LLM provider — OpenAI, Anthropic, open-source models. No architectural changes required.

How it works

Up and running in an afternoon.

Install the SDK

pip install sentinelai-sdk. Available on PyPI. One import, one client initialization.

Wrap your LLM calls

Pass your prompt and response to client.analyze(). That's it. No middleware, no proxies, no architectural changes to your existing stack.

Act on risk scores

Receive a risk score and explanation on every call. Route flagged exchanges to a human review queue, block responses, or fire an alert — your call.

Pricing

Start free. Scale when you need to.

No credit card required for free tier. Upgrade or cancel any time.

Free
$0forever

For individual developers validating the integration.

  • 1,000 API calls / month
  • SDK access
  • Basic risk scoring
  • Community support
Start free
Most popular
Team
$49per seat / month

For engineering teams that have shipped LLMs to production.

  • Unlimited API calls
  • Full dashboard
  • Alerting & audit logs
  • Email support
  • SSO (coming soon)
Start 14-day trial
Enterprise
Custom

Self-hosted or cloud, SLA, priority support, and compliance features.

  • Self-hosted deployment
  • Custom SLA
  • Dedicated support
  • Volume pricing
Talk to us

Catch the failures your users would find first.

Start monitoring in under 10 minutes. No model changes, no infrastructure work.