Senthex

Senthex

Secure your LLM API calls. One line of code.

Y
@yohannsidot
Published on May 2, 2026
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About Senthex

Senthex is a transparent reverse proxy that scans every API call to OpenAI, Anthropic, Mistral, Gemini, and OpenRouter in real time. You change one line of code (your base_url) and get 24 security shields: prompt injection detection with multi-turn tracking, PII redaction, secrets scanning, automatic prompt hardening, data classification with provider routing, budget circuit breaker per agent, canary tokens for system prompt leak detection, and response toxicity scoring. Agent-native every response includes metadata headers so autonomous agents can self-monitor. Anti-bypass system with progressive trust levels. 600+ tests, 16ms overhead, Python SDK on PyPI. Free beta.

Product Insights

Senthex is a developer-focused cybersecurity tool that provides a transparent reverse proxy to secure LLM API calls with zero-trust architecture. It integrates via a single-line base URL change to offer 24 security shields including prompt injection detection and automatic PII redaction.

  • Supports major LLM providers including OpenAI, Anthropic, Mistral, Gemini, and OpenRouter.
  • Low-latency performance with only 16ms of overhead for real-time security scanning.
  • Agent-native design with metadata headers for autonomous agent self-monitoring.
  • Comprehensive protection suite featuring canary tokens and budget circuit breakers per agent.

Ideal for: AI developers and founders need a low-friction way to implement LLM security and data classification through a Python SDK.

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Comments (1)

Y
@yohannsidotApr 7, 2026

Built this solo in 3 weeks at 18. Looking for beta testers who use LLM APIs in production. Free access, just reach out at [email protected]