- vendor
- Pydantic Services
- whatItIs
- Type-safe Python agent framework with built-in validation, tool integration, observability via Logfire, and MCP support.
- hosting
- both
- pricingModel
- open-source + Logfire subscription
- modelProviders
- multi-model (OpenAI, Anthropic, Google, Groq, Cohere, Mistral, Azure, Bedrock, Ollama)
- stateModel
- in-process
- toolModel
- function-calling + MCP
- includesBrowser
- false
- includesMemory
- false
- longRunning
- caller-managed
- hitlSupport
- true
- observability
- Logfire (evals + traces)
- maturity
- ga
- notes
- MIT-licensed. FastAPI-style ergonomics, type hints drive IDE auto-completion, structured outputs via Pydantic models. ~17k+ GitHub stars in 2026.
- launched
- 2024-12
