Model Context Protocol - An open standard for connecting AI models to external tools and data sources. MCP Registry.
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Vanna is an open source tool that enables users to interact with SQL databases via natural language. It uses large language models and agentic retrieval to generate accurate text-to-SQL queries.
Gitingest converts any Git repository into a prompt-friendly text ingest for LLMs. Users can replace hub with ingest in any GitHub URL to access the corresponding digest. It provides a text digest from a repository URL or directory, with smart formatting for LLM prompts and statistics on file and directory structure, extract size and token count. It is available as a CLI tool and Python package.
Optuna is an open source automatic hyperparameter optimization software framework designed for machine learning. It provides an imperative, define-by-run style user API with eager search spaces, algorithms that prune unpromising trials, and parallelization of searches over multiple threads or processes without modifying code. It is framework agnostic and can be installed with pip on Python 3.10 or newer.
Turns your ML code into microservices with web API, interactive GUI, and more.
Orkas is an open-source, local-first AI desktop app. A commander LLM directs specialist sub-agents and runs installed coding CLIs including Claude Code, Codex, OpenCode, OpenClaw, and Hermes as local sessions. Its agents self-evolve via reflection and skill crystallization, supports bring-your-own keys, and is compatible with macOS, Windows, and Linux.
Ouroboros is an open-source, general-purpose AI agent whose identity, durable memory, and history continue across tasks and restarts. It coordinates a live swarm of specialist agents, works on external projects, and can rewrite its own code, architecture, prompts, tools, and dependencies. It runs as a native desktop app or a headless CLI, keeping its repository, memory, and history on the local machine.
Owlbot is an AI chatbot platform for building AI assistants from documents and websites. It supports deployment on a website, mobile app, WhatsApp, Slack or API, and cites sources in replies. The page states that no code is required and lists 12 LLM models and 95 languages.
LLM Comparator is an interactive data visualization tool for evaluating and analyzing large language model responses side-by-side, developed by the PAIR team. It includes a Python library for creating JSON files and a defined JSON data format.
Paper2Galgame is proprietary software that turns academic papers into interactive visual novels using AI. Users upload PDFs to generate story-driven explanations and can study with anime partners or custom characters. It also offers document parsing, chapter-by-chapter reading, voice, and blackboard notes. Its source code is not publicly available.
Open-source platform to run coding agents as managed workers with tasks, approvals, budgets, and workspaces.
Petals is a GitHub repository or organization with source code, releases, documentation, or project resources.
Petastorm is a library developed by Uber for deep learning model training and evaluation. It supports single-machine and distributed workflows with datasets in Apache Parquet format, is compatible with TensorFlow, PyTorch, and PySpark, and can be used via pure Python code.
Pi is a terminal-based minimal coding agent harness built to adapt to user workflows rather than requiring users to adjust their processes. It supports 15+ providers and hundreds of models, offers tree-structured shareable interaction history, context engineering features, and four operation modes: interactive, print/JSON, RPC, and SDK. Users can customize Pi with extensions, skills, prompt templates, and themes, and share customizations as packages via npm or git. It is installable via curl, PowerShell, npm, pnpm, or bun.
Pieces is a memory layer that runs in the background on a computer, forming a searchable record of work from apps the user already uses. It captures activity chronologically so users can search, filter and revisit moments, and carry context into AI tools. Memories are saved on-device by default, and capture from copy and paste is opt-in.
piia-engram is described as a local-first AI memory that can be seen, edited, and overridden. It is portable across Claude Code, Codex, Cursor, Windsurf, and other MCP coding tools. The project presents a user-owned identity layer stored in local files.
PipeRider is a tool described as code review for data in dbt. It compares data to highlight differences in impacted downstream dbt models, profiles dbt models, and generates a static HTML report each run. The project states that PipeRider has been superseded by Recce and will no longer be updated on a regular basis.
Plandex is an open source AI coding agent built for large projects and real-world tasks. It includes smart context management for large codebases, configurable autonomy levels, and tools to support producing production-ready results.
Ponytail is a GitHub repository or organization with source code, releases, documentation, or project resources.
PR-Agent is an open-source, AI-powered code review agent and a community-maintained legacy project of Qodo. It provides tools such as /review, /improve and /ask, each using a single LLM call, and can run as a GitHub Action or from the CLI. The project states it is not the Qodo free tier.
Prediction Guard is a self-hosted AI control plane described as enforcing NIST and OWASP-aligned runtime controls inside an organization's security boundary. It offers Agent Forge for creating interactive and autonomous agents, and an OpenAI, Anthropic and MCP compatible API. The site lists a Docker Verified Publisher agentic program entry and a verified Agent Control Kit on Docker Hub.
Build tool for data science pipelines.
Product Manager Skills is an open-source resource hosted on GitHub, created for use with AI coding tools including Claude Code, Codex, Cursor, and Windsurf. It provides support for product management tasks such as diagnosing SaaS metrics, critiquing product requirement documents, planning product roadmaps, running discovery work, and coaching product managers through career transitions.
Prompt Engineering Guide is a GitHub repository or organization with source code, releases, documentation, or project resources.