LLM Test Server
Your LLM tests, without the provider
LLM Test Server is a local, deterministic stand-in for 13 LLM provider APIs. Your app keeps its official SDK and points it at namespaced routes like /openai/v1; answers, tool calls, streams and failures come from fixtures your test sets up. The dashboard shows where every token goes: system prompt, tool schemas, conversation turns, prompt-cache reads and writes. Built forNET and Aspire, and shipped as a Docker image so any stack can use it. Free and open source.
LLM Test Server is a Open Source company. It launched on Product Hunt on Oct 22, 2026, with 22 upvotes. Adamlead has 1 person on file at LLM Test Server.
LLM Test Server timeline
- Your LLM tests, without the provider
People at LLM Test Server
Emails are shown masked, with whether each one has been verified. They're unlocked in the app with Lifetime access.
| Name | Title | |
|---|---|---|
Maker | – |
Frequently asked questions
Who works at LLM Test Server?
Adamlead has 1 person on file at LLM Test Server, including Alina Kostiuk (Maker). Each email shows whether it has been verified.