When a production run fails or burns cost, Lieva records the trace, pinpoints the broken step, replays the fix, and turns the incident into a regression eval.
Forks run locally. Your keys never leave your env.
Early access
We are building the forensic layer for the agentic era. Founding members get direct engineering support and shape the replay-engine roadmap.
Founder seats are free to claim while they last →
No charge before launch — plus 40% off the Founder plan, locked for life.
No card required
FAQ
No. Forks and replays run locally in your own environment — your provider keys never leave your machine. Lieva works on the trace you import.
TypeScript SDK first, Python next: OpenAI, Anthropic, the Vercel AI SDK, Mastra, and Trigger.dev / Inngest.
Observability shows you the trace. Lieva turns a bad run into a fixed replay and a regression eval — it is the post-incident repair loop, not another dashboard.
Guaranteed early access, a live 1:1 session where we repair one of your real failed runs with you, 40% off the Founder plan locked for life, and a private founder channel with roadmap influence. Claiming a seat is free — just join the waitlist.