TruLayer is an AI reliability platform for teams shipping LLMs to production. Tracing — OTLP-native plus SDKs for OpenAI, Anthropic, LangChain, Vercel AI SDK, CrewAI, and 11 others. Evals — 25 LLM-judge evaluators inline: hallucination, faithfulness, tool-call correctness, PII, citation density. Control loop (new in v0.1) — eval fires → cluster → prompt diff → A/B → auto-ship → auto-rollback on regression. HITL gate at any step. Free tier: 1M spans/month, no card.