langfn 0.0.1

AI development SDK for LLM-based workflows (Python)

LangFn (Python)

Comprehensive AI Development SDK for LLM-based workflows.

Features

• Model Abstraction: Unified interface for OpenAI, Anthropic, Ollama, and more.
• Orchestration: Sequential, Parallel, and Map-Reduce chains.
• Graph Workflows: Stateful workflows with StateGraph.
• Agents: Functional ToolAgent and ReActAgent.
• Structured Output: Type-safe output parsing with Pydantic.
• RAG: Embeddings and Vector Store support.
• Observability: Built-in tracing with watchfn integration.

Usage

from langfn import LangFn
from langfn.models.openai import OpenAIChatModel

lang = LangFn(
    model=OpenAIChatModel(api_key="your-api-key")
)

response = await lang.complete("Hello world")
print(response.content)

Documentation

See the main documentation for more details.