# deepcrew-ai > Async, LiteLLM-backed multi-agent Python library with a self-improving refinement loop > (verifier-scored, adaptive, self-consistency branching, skill distillation), bounded recursive > agent spawning, APEX multi-agent synthesis, multimodal input, and streaming with selectable > event visibility (StreamPolicy). `pip install deepcrew-ai`. ## Docs - [Overview & quick start](md/index.md): install, core building blocks, documentation map. - [Features index](md/features.md): index of every feature page below. - [Examples](md/examples.md): index of runnable scripts in `examples/`. - [Migration guide](md/migration.md): concept map from CrewAI and Google ADK, plus what deepcrew adds. ## Feature guides - [APEX Synthesizer](md/guides/apex.md) - [Agent Spawning](md/guides/spawning.md) - [Looping](md/guides/looping.md) - [Verifier](md/guides/verifier.md) - [Procedural Memory](md/guides/procedural-memory.md) - [Multimodal Input](md/guides/multimodal.md) - [StreamPolicy](md/guides/streampolicy.md) - [FastAPI Integration](md/guides/fastapi.md) - [Structured Output](md/guides/structured-output.md) - [Human-in-the-Loop Hooks](md/guides/hooks.md) - [Memory Providers](md/guides/memory.md) - [Redis Memory Provider](md/guides/redis-memory.md) - [Skills](md/guides/skills.md) - [Retry & Fallback](md/guides/retry.md) - [Observability](md/guides/observability.md) - [CLI](md/guides/cli.md) ## Optional - [llms-full.txt](llms-full.txt): full concatenated text of every page above, for pasting into an LLM context window in one shot.