# Pixie > Pixie is an open-source, Kubernetes-native application observability and debugging platform built by Pixie Labs (acquired by New Relic, 2020) and now a CNCF sandbox project. It uses dynamic eBPF probes to auto-instrument workloads and capture metrics, events, full-body traces, and logs in seconds without code changes, querying data in-cluster with PxL scripts. The API is gRPC (Pixie Cloud + Pixie Vizier) with first-party Go and Python clients and the px CLI. Note: pixielabs.ai no longer resolves; the project lives at px.dev under the pixie-io GitHub org. Authentication uses an opaque API key (px-api- prefix). Client libraries are v0.x (pre-1.0). ## API - [Pixie API overview](https://docs.px.dev/reference/api/overview/): gRPC API — Cloud (cluster discovery/management) + Vizier (ExecuteScript PxL execution) - [API quick start](https://docs.px.dev/using-pixie/api-quick-start/): create an API key, connect a client, run a PxL script ## Specs - [Pixie Vizier API proto](grpc/pixie-labs-vizierapi.proto): VizierService (ExecuteScript, HealthCheck, GenerateOTelScript), VizierDebugService - [Pixie Cloud API proto](grpc/pixie-labs-cloudapi.proto): VizierClusterInfo, APIKeyManager, ScriptMgr, PluginService, and more ## Docs - [Documentation](https://docs.px.dev) - [Admin: API keys](https://docs.px.dev/reference/admin/api-keys/) - [CLI reference](https://docs.px.dev/installing-pixie/install-schemes/cli/) - [Blog](https://blog.px.dev) ## SDKs & Tools - [Go client (px.dev/pxapi)](https://pkg.go.dev/px.dev/pxapi): `go get px.dev/pxapi` - [Python client (pxapi)](https://pypi.org/project/pxapi/): `pip install pxapi` - [px CLI](https://github.com/pixie-io/pixie): `brew install pixie` ## Repos - [GitHub organization](https://github.com/pixie-io) - [pixie-io/pixie](https://github.com/pixie-io/pixie): core platform (Apache-2.0)