Get Started
Prompts are code. Treat them like it.
px0 is open-source prompt infrastructure for AI applications. It replaces hardcoded prompt strings with versioned templates, in-process caching, A/B testing, and OpenTelemetry observability - so you can iterate on prompts without touching application code.
Features
Section titled “Features”- Versioned prompt templates with a Draft-Review-Publish workflow and immutable published versions
- Easy templating with variables, conditionals, loops, filters, and macros rendered in a sandbox
- In-process caching with TTL, push-based invalidation, and background refresh before expiry
- A/B testing with traffic splitting by percentage
- OpenTelemetry observability for latency, cache hit rates, and errors
- Sub-2ms p99 render latency
Get Started
Section titled “Get Started”Visit the GitHub Repository to run px0 locally, explore examples, and deploy it in production. In just a few minutes, you can start versioning, testing, caching, and observing prompts without changing application code.
Treat prompts like code. Ship them with confidence.