Stop scattering prompts across config files and code. Endprompt gives you versioned, tested, and observable LLM endpoints with strong contracts and intelligent caching.
Treat prompts like code with versioning, testing, and observability without polluting your codebase. Integrate once, iterate forever.
Define AI behavior without waiting on engineers. Test, refine, and promote changes safely. The domain expert owns the outcome.
What should this AI feature do?
Iterate and test with real inputs
Safe, versioned, and auditable deployment
Stable API with OpenAPI spec
Logs, cost, latency, replay
Automatic versioning with draft to live promotion and instant rollbacks
Typed inputs and outputs with enforced JSON schemas
Domain experts define behavior, developers consume APIs
Track costs by endpoint, not just model. See exactly what each feature costs you.
Automatic caching prevents redundant LLM calls and reduces costs without extra complexity
Advanced prompt templating with conditional logic and loops for maximum flexibility
Automatic caching prevents redundant LLM calls for repeated inputs, saving you money without adding complexity to your code.
LLM providers show you model costs. Endprompt shows you feature costs.
See exactly what your "article summarization" feature costs versus "email generation" — something impossible to track when calling LLMs directly.
Create your first versioned, observable LLM endpoint in minutes.
Start free trial