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Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

ACI.dev is the open source tool-calling platform that hooks up 600+ tools into any agentic IDE or custom AI agent through direct function calling or a unified MCP server. The birthplace of VibeOps.

The first AI agent that builds permissionless integrations through reverse engineering platforms' internal APIs.

DeepSeek-Compatible Middleware Interface: A technical exploration project in Go, focusing on high-concurrency protocol adaptation. It serves as a reference implementation for converting diverse web protocols into standardized formats.

📜 A collective list of public GraphQL APIs

PostgreSQL ➕ REST, low-code, simplify and accelerate development, ⚡ instant, realtime, high-performance on any Postgres application, existing or new, MCP server

A generic JSON document store with sharing and synchronisation capabilities.

Creates diagrams from textual descriptions!

PRAW, an acronym for "Python Reddit API Wrapper", is a python package that allows for simple access to Reddit's API.

Cascading runtime for AI agents. Optimize cost, latency, quality, and policy decisions inside the agent loop.

Open-source reporting platform to build and share live dashboards from APIs, SQL and NoSQL databases, with powerful AI assistant, scheduling, and embeddable charts 📈📊

🐬 Beautiful, performant feature flags for Ruby.

TheHive is a Collaborative Case Management Platform, now distributed as a commercial version

A minimal Python framework for building custom AI inference servers with full control over logic, batching, and scaling.

OliveTin gives safe and simple access to predefined shell commands from a web interface.

Input OpenAPI. Output SDKs and Docs.

A simple API client (postman like) in your terminal

Self-hostable travel tracker and trip planner.

Catch API bugs before your users do

A standard API for multi-agent reinforcement learning environments, with popular reference environments and related utilities

✨ Reverse-engineered Python API for Google Gemini web app

blazingly fast backends in zig

The open source and enterprise-ready webhooks service 🦀

A simple and open-source proxy API that allows you to access OpenAI's ChatGPT API for free!

A model set of guidelines for RESTful APIs and Events, created by Zalando

Document (PDF, Word, PPTX ...) extraction and parse API using state of the art modern OCRs + Ollama supported models. Anonymize documents. Remove PII. Convert any document or picture to structured JSON or Markdown

Free LLM API keys for GPT-5.5, Claude, DeepSeek, Gemini, Grok — copy, paste, use. Updated 3-5x daily. No credit card needed.

CheckCle is a self-hosted, open-source monitoring platform for seamless, real-time full-stack systems, applications, and infrastructure. It provides real-time uptime monitoring, distributed checks, incident tracking, and alerts. All deployable anywhere.

Open-source meeting transcription API for Google Meet, Microsoft Teams & Zoom. Auto-join bots, real-time WebSocket transcripts, MCP server for AI agents. Self-host or use hosted SaaS.

Developer-first OpenSource API DevTool, Postman/Insomnia alternative.