Add Perplexity LLM plugin

[rosetta-livekit-bot]

Summary

Adds a livekit-plugins-perplexity plugin that exposes Perplexity's OpenAI-compatible chat completions endpoint as a LiveKit Agents LLM.

The plugin is a thin wrapper around livekit-plugins-openai, mirroring the pattern used by livekit-plugins-cerebras and livekit-plugins-baseten:

• base_url = https://api.perplexity.ai
• Default model: sonar-pro
• API key from the PERPLEXITY_API_KEY env var (or argument)
• Reuses the existing OpenAI plugin transport — no new runtime dependencies

from livekit.plugins import perplexity

llm = perplexity.LLM(model="sonar-pro")  # picks up PERPLEXITY_API_KEY

Attribution header

Every outgoing chat request carries X-Pplx-Integration: livekit-agents/<plugin-version> (forwarded via extra_headers on the underlying OpenAI client) so usage from the LiveKit integration can be attributed upstream. A unit test asserts this header is configured.

Test plan

• uv run --package livekit-plugins-perplexity pytest tests/test_plugin_perplexity.py — 4 passed
• uv run ruff check livekit-plugins/livekit-plugins-perplexity tests/test_plugin_perplexity.py — clean
• Plugin imports and LLM() instantiates with PERPLEXITY_API_KEY set; raises a clear ValueError otherwise
• LLM().provider == "Perplexity" and _client.base_url starts with https://api.perplexity.ai

The added tests are pure mocks (no network) and cover: default model, base URL, attribution header, missing-key error, and provider name.

Files

• livekit-plugins/livekit-plugins-perplexity/ — new package (mirrors cerebras/baseten layout)
• tests/test_plugin_perplexity.py — unit tests
• pyproject.toml — register new workspace member

[changeset-bot]

🦋 Changeset detected

Latest commit: 666701f

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 32 packages

Name	Type
@livekit/agents-plugin-perplexity	Patch
@livekit/agents	Patch
@livekit/agents-plugin-anam	Patch
@livekit/agents-plugin-assemblyai	Patch
@livekit/agents-plugin-baseten	Patch
@livekit/agents-plugin-bey	Patch
@livekit/agents-plugin-cartesia	Patch
@livekit/agents-plugin-cerebras	Patch
@livekit/agents-plugin-deepgram	Patch
@livekit/agents-plugin-elevenlabs	Patch
@livekit/agents-plugin-fishaudio	Patch
@livekit/agents-plugin-google	Patch
@livekit/agents-plugin-hedra	Patch
@livekit/agents-plugin-hume	Patch
@livekit/agents-plugin-inworld	Patch
@livekit/agents-plugin-lemonslice	Patch
@livekit/agents-plugin-liveavatar	Patch
@livekit/agents-plugin-livekit	Patch
@livekit/agents-plugin-minimax	Patch
@livekit/agents-plugin-mistral	Patch
@livekit/agents-plugin-mistralai	Patch
@livekit/agents-plugin-neuphonic	Patch
@livekit/agents-plugin-openai	Patch
@livekit/agents-plugin-phonic	Patch
@livekit/agents-plugin-resemble	Patch
@livekit/agents-plugin-rime	Patch
@livekit/agents-plugin-runway	Patch
@livekit/agents-plugin-sarvam	Patch
@livekit/agents-plugin-silero	Patch
@livekit/agents-plugin-trugen	Patch
@livekit/agents-plugin-xai	Patch
@livekit/agents-plugins-test	Patch

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 3 additional findings.