> ## Documentation Index
> Fetch the complete documentation index at: https://docs.plyra.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Plyra

> Open-source infrastructure for agentic AI

Plyra is the infrastructure layer that sits between your AI agents and the
world. Policy enforcement, persistent memory, and full-stack observability —
open source, local-first, production-grade.

<CardGroup cols={3}>
  <Card title="Guard" icon="shield-check" href="/guard/overview" color="#2dd4bf">
    Policy enforcement for every tool call. Block, log, or escalate before
    execution. Live on PyPI at v0.1.9.
  </Card>

  <Card title="Memory" icon="database" href="/memory/overview" color="#818cf8">
    Persistent episodic, semantic, and working memory across agent sessions.
    Live on PyPI at v0.1.0.
  </Card>

  <Card title="Trace" icon="chart-network" color="#6366f1">
    Full-stack observability. Spans, cost, and policy events in one graph.
    Coming soon.
  </Card>
</CardGroup>

<CodeGroup>
  ```bash Guard (live) theme={null}
  pip install plyra-guard
  ```

  ```bash Memory (alpha) theme={null}
  pip install plyra-memory
  ```

  ```bash Trace theme={null}
  pip install plyra-trace
  ```
</CodeGroup>

<Note>
  Apache 2.0 — no telemetry, no tracking, no lock-in. Run it anywhere your
  agents run.
</Note>