API Frameworks

public-apis

Python

95

A collective list of free APIs

langchain

Python

95

The agent engineering platform.

ComfyUI

Python

90

The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface.

fastapi

Python

95

FastAPI framework, high performance, easy to learn, fast to code, ready for production

LocalAI

Go

95

LocalAI is the open-source AI engine. Run any model - LLMs, vision, voice, image, video - on any hardware. No GPU required.

eve

TypeScript

85

The Framework for Building Agents

notifuse

Go

90

Notifuse is an open-source & modern emailing platform

bracket

TypeScript

85

Selfhosted tournament system

CCFA-Skills

TeX

82

A skill family for shaping the research storyline of CCF-A papers.

Pythia

TypeScript

85

One local API call gives your agent the entire live state of the planet — every major world event at once, plus forecasts. 40+ free keyless feeds, runs entirely on Ollama. No cloud, no cost. Keyless live feeds into one global view and forecasts what’s likely next. No cloud, no keys, no cost. 1d,1w,1m,1y predictions by Mirofish.

gh-dashboard

TypeScript

77

Open-source Git dashboard built for GIthub and Forgejo on REST and GraphQL APIs: repositories, issues, pull requests, traffic, Actions, contributors, dependents, and a kanban board view.

domain-sdk

TypeScript

82

Add, verify, monitor, and remove customer domains with one TypeScript API.

rockbox-zig

C

73

A modern, network-enabled music player platform built on Rockbox technology https://www.rockbox.org

FreeFrame

TypeScript

72

Open source alternative for frame.io

market-pilot

JavaScript

68

Evidence-grounded market research prototype with traceable AI workflows.

notesme

HTML

63

A lightweight, secure, and self-hosted note-taking application with end-to-end encryption, built with FastAPI and Vanilla JS.

shelftxt

Python

63

Open-source FastAPI recommendation engine for books • backend architecture • data handling • scalable systems