API

Open-source SMS gateway. Turn your Android phone into an SMS API: send and receive SMS from your apps over REST and webhooks. Self-hostable, with a free hosted plan.

Multi-account pool proxy for Windsurf — 113+ models (Claude/GPT/Gemini/Grok/Kimi) via OpenAI & Anthropic APIs, image upload, Cursor & Claude Code native / 企业级 Windsurf 多账号池化 API 代理

Directory of OpenAPI specifications for thousands of public APIs. Every API is machine-readable and scored for AI agents. CC0.

Build AI methods with your coding agent, then run them anywhere: as an MCP for chatbots, as a webapp for people, or via API for your software.

Free crypto news API - real-time aggregator for Bitcoin, Ethereum, DeFi, Solana & altcoins. No API key required. RSS/Atom feeds, JSON REST API, historical archive with market context, embeddable widgets, ChatGPT plugin, Claude MCP server, SDKs (Python, TypeScript, Go, React, PHP). AI/LLM ready. Vibe coding friendly. Open source.

The Bank API is a design reference project suitable to bootstrap development for a compliant and modern API.

Audience-aware CLI patterns for Node.js + Commander.js. Build CLIs for humans, AI agents, or both.

pctx is the execution layer for agentic tool calls. It auto-converts agent tools and MCP servers into code that runs in secure sandboxes for token-efficient workflows.

SoftSync for the agentic era

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

Open-source AI skill from https://github.com/guillaumegay13/fieldflow

Self-Hosted API Management for Builders

Easily deploy Haystack pipelines as REST APIs and MCP Tools.

Run any process, on your machine or in an AI agent's environment, as if it were a pod in your Kubernetes cluster: real env vars, DNS, network, traffic.

Tiledesk Server is the main API component of the Tiledesk platform 🚀 Tiledesk is an open-source alternative to Voiceflow, allowing you to build advanced LLM-powered agents with easy human-in-the-loop (HITL) when necessary.

Data API builder provides modern REST, GraphQL endpoints and MCP tools to your Azure Databases and on-prem stores.

Adnify—A lightweight, highly customizable AI Agent Editor.It delivers a superior experience beyond mainstream AI coding tools, featuring instant startup and lag-free performance.

Adnify——Lightweight, highly customized AI Agent editor, the ultimate experience that crushes mainstream AI programming tools! The lightweight architecture starts in seconds without lag, supports full-process customization of AI Agent (logic orchestration/tool ​​approval/intelligent interaction), deeply integrates XTerminal (WebGL acceleration + custom shortcut keys), and is equipped with Markdown multi-mode editing, theme customization, and Git integrated management. Say goodbye to bloated templates and make AI development completely fit your habits.

Free crypto news API - real-time aggregator for Bitcoin, Ethereum, DeFi, Solana & altcoins. No API key required. RSS/Atom feeds, JSON REST API, historical archive with market context, embeddable widgets, ChatGPT plugin, Claude MCP server, SDKs (Python, TypeScript, Go, React, PHP). AI/LLM ready. Vibe coding friendly. Open source.

Automate the Boring Stuff with  Apple Shortcuts

🐑 One command to configure all AI coding tools — Claude Code, Codex, Gemini CLI, Cursor, Aider & more

MCP Server for Facebook ADs Library - Get instant answers from FB's ad library

Google Flights MCP, CLI and Python Library

A sandbox for the third-party APIs you depend on. Built from the provider's spec, it fails on purpose, and it replays the exact failure production hit.