Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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python-sdk
The official Python SDK for building Model Context Protocol servers and clients that expose tools, resources, and prompts to any LLM host.
google-auth
The foundational Python library for authenticating to Google Cloud and Google APIs with OAuth2, service accounts, and Application Default Credentials.
Gunicorn
A fast, lightweight pre-fork WSGI and ASGI HTTP server for running Python web apps in production on UNIX.
OpenTelemetry Python SDK
The reference implementation of the OpenTelemetry API for Python - traces, metrics, and logs
toml
A native Rust encoder and decoder for TOML with first-class Serde support.
mypy
Optional static type checker that catches Python bugs before you run your code
quote
The quasi-quoting library that turns Rust syntax into token streams for procedural macros.
websockets
Build correct, fast WebSocket servers and clients in Python with asyncio, threading, or Sans-I/O APIs.
Psycopg
The modern PostgreSQL adapter for Python, with native async and pipeline support
scikit-learn
Simple and efficient tools for machine learning and data analysis in Python.
axum
Ergonomic and modular HTTP routing and request-handling framework for Rust, built on Tokio, Hyper, and Tower.
pydantic-settings
Type-safe application settings management for Python, built on Pydantic models.
LiteLLM
Call 100+ LLM APIs from OpenAI to Anthropic to Bedrock through one unified, OpenAI-format Python interface.
Typer
Typer is a Python library for building CLI applications, using type hints to generate arguments, options, validation, help text, and shell completion automatically.
asyncpg
A fast PostgreSQL database client library for Python built directly on asyncio, implementing the PostgreSQL binary wire protocol natively for high-throughput async applications.
Alembic
Database migrations tool for SQLAlchemy with autogenerate and transactional DDL
once_cell
Single-assignment cells and lazy statics for Rust, without macros or unsafe code
sentry-sdk
The official Python SDK for Sentry error tracking, performance monitoring, and tracing.
serde_yaml
Strongly typed YAML serialization and deserialization for Rust, built on Serde
idna
Internationalized Domain Names for Python — IDNA 2008 and UTS #46 encoding and decoding
pypdf
A pure-Python library for splitting, merging, cropping, transforming, and extracting content from PDF files.
tenacity
A general-purpose Python retrying library that adds configurable retry behavior to almost anything
rustls
A modern, memory-safe TLS library for Rust with no unsafe code and no legacy crypto by default.
Tower
Modular, reusable Rust components for building async network clients and servers