docs.pixeltable.com

# Pixeltable Documentation > The only open source Python library providing declarative data infrastructure for building multimodal AI applications, enabling incremental storage, transformation, indexing, retrieval, and orchestration of data. ## Docs - [Changelog](https://docs.pixeltable.com/changelog/changelog.md): Release history and updates for Pixeltable - [Agentic Patterns](https://docs.pixeltable.com/howto/cookbooks/agents/agentic-patterns.md) - [Use tool calling and MCP servers with LLMs](https://docs.pixeltable.com/howto/cookbooks/agents/llm-tool-calling.md) - [Build an agent with memory](https://docs.pixeltable.com/howto/cookbooks/agents/pattern-agent-memory.md) - [Look up structured data with retrieval UDFs](https://docs.pixeltable.com/howto/cookbooks/agents/pattern-data-lookup.md) - [Build a RAG pipeline](https://docs.pixeltable.com/howto/cookbooks/agents/pattern-rag-pipeline.md) - [Use a table pipeline as a reusable function](https://docs.pixeltable.com/howto/cookbooks/agents/pattern-table-as-udf.md) - [Extract audio from video](https://docs.pixeltable.com/howto/cookbooks/audio/audio-extract-from-video.md) - [Summarize podcasts and audio](https://docs.pixeltable.com/howto/cookbooks/audio/audio-summarize-podcast.md) - [Convert text to speech](https://docs.pixeltable.com/howto/cookbooks/audio/audio-text-to-speech.md) - [Transcribe audio files with Whisper](https://docs.pixeltable.com/howto/cookbooks/audio/audio-transcribe.md) - [Create custom aggregate functions (UDAs)](https://docs.pixeltable.com/howto/cookbooks/core/custom-aggregates-uda.md) - [Custom Iterators](https://docs.pixeltable.com/howto/cookbooks/core/custom-iterators.md) - [Split data into multiple rows with iterators](https://docs.pixeltable.com/howto/cookbooks/core/data-split-rows.md) - [Get fast feedback on transformations](https://docs.pixeltable.com/howto/cookbooks/core/dev-iterative-workflow.md) - [Join tables to combine data](https://docs.pixeltable.com/howto/cookbooks/core/query-join-