Structured Output Python Packages

json-repair

Repair malformed JSON from LLMs, APIs, logs, and user input in Python.

baml-py

The AI framework that adds the engineering to prompt engineering (Python/TS/Ruby/Java/C#/Rust/Go compatible)

prompture

Prompture is an API-first library for requesting structured JSON output from LLMs (or any structure), validating it against a schema, and running comparative tests between models.

sophia-motor

Smart functions with a brain inside. Inputs in. Pydantic out. Multi-turn agent in the middle.

logsentinelai

LLM-powered security log analyzer: detect threats & anomalies with zero regex — just declare a Pydantic schema. Real-time Telegram alerts, SIEM-ready with Elasticsearch/Kibana. Supports OpenAI, Ollama, vLLM.

afterimage

Generate conversational, tool-calling, structured-output, and preference datasets — easily and at scale

mlx-omni-server

MLX Omni Server is a local inference server powered by Apple's MLX framework, specifically designed for Apple Silicon (M-series) chips. It implements OpenAI-compatible API endpoints, enabling seamless integration with existing OpenAI SDK clients while leveraging the power of local ML inference.

pollux-ai

Multimodal orchestration for LLM analysis

sgr-agent-core

Schema-Guided Reasoning (SGR) has agentic system design created by neuraldeep community

llm-async

Async multi‑provider LLM client for Python

smelt-ai

LLM-powered structured data transformation. Batch process rows through any LLM, get back strictly typed Pydantic models.

gpt-function-decorator

Decorator to define GPT-powered functions

alloy-ai

Alloy (Python): Python for logic. English for intelligence.

ask2api

A minimal CLI tool that turns natural language into instant APIs.

electripy-studio

Production-grade Python toolkit for AI product engineering — LLM gateway, policy guardrails, RAG eval, agent collaboration, telemetry, and more.

xlstruct

LLM-powered Excel parser — define a Pydantic schema, get structured data from any Excel file

tool-parse

Making LLM Tool-Calling Simpler.

websense

A modular AI-powered web scraper for data pipelines.

semantix

Give Superpowers to your python function. GenAI Application development made easy.

kacs

Keep a changelog, stupid! Generate changelogs from git commits using LLM.

dagpipe-core

LLM pipeline crash recovery for Python. Resumes from last successful node instead of restarting from scratch. No database required, just plain JSON files.

llm-tasker

Type-safe LLM output parsing with Pydantic models and Jinja2 prompt templates

opensymbolicai-core

Build LLM-powered systems as typed, testable Python software — not prompt strings

llmwire

Lightweight async Python client for OpenAI, Anthropic, and Ollama with streaming, retries, and structured output