A collective list of free APIs
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The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, load balancing, and logging [Bedrock, Azure, OpenAI, Anthropic, OpenAI, VertexAI, vLLM, Nvidia NIM]
Web APIs for Django. 🎸
Fully Local Manus AI. No APIs, No $200 monthly bills. Enjoy an autonomous agent that thinks, browses the web, and code for the sole cost of electricity.
Universal SEO skill for Claude Code. 26 sub-skills + 19 sub-agents covering technical SEO, E-E-A-T, schema, GEO/AEO, agent readiness (Lighthouse Agentic Browsing, WebMCP, llms.txt), backlinks, local SEO, e-commerce, international SEO, Google APIs, and PDF/Excel reporting. 9 optional extensions for live SEO data.
Open-source data movement for ELT pipelines and AI agents — from APIs, databases & files to warehouses, lakes, and AI applications. Both self-hosted and Cloud.
CVAT is a leading data annotation platform for image, video, audio, and 3D datasets. It offers open-source, cloud, and enterprise products, as well as labeling services, with AI-assisted labeling, quality assurance, team collaboration, analytics, and developer APIs.
📊 APIs for Web Scraping, Browser Automation, and E2E Testing. CDP Mode bypasses bot-detection and handles CAPTCHAs. Adds stealth to Playwright. Includes an MCP server.
Real-time, local speech-to-text with streaming ASR, speaker diarization, translation, and OpenAI/Deepgram-compatible APIs.
💨 Fast, Async-ready, Openapi, type hints based framework for building APIs
Speech recognition module for Python, supporting several engines and APIs, online and offline.
Build powerful, efficient, and flexible GraphQL APIs with seamless Django integration.
A cross platform package to do curses-like operations, plus higher level APIs and widgets to create text UIs and ASCII art animations
RESTler is the first stateful REST API fuzzing tool for automatically testing cloud services through their REST APIs and finding security and reliability bugs in these services.
Open-source low code data preparation library in python. Collect, clean and visualization your data in python with a few lines of code.
Clean APIs for data cleaning. Python implementation of R package Janitor
Don't reverse engineer it twice. 17,000+ open-source tools built by reverse engineering closed apps, APIs, devices, protocols, file formats, games and AI tools. Search site + agent skill + MCP server, refreshed nightly.
ESB, SOA, REST, APIs and Cloud Integrations in Python
Multiple windows for Claude Desktop with different APIs at the same time: keep your official Claude subscription in one window and run other windows on custom / third-party APIs (cc-switch). Windows. 多开 Claude Desktop,多个窗口同时使用不同 API(官方订阅 + 第三方 API 同时工作)。
Security Auditor Utility for GraphQL APIs
An easy-to-use and lightweight API wrapper for Censys APIs.
OASIS TC Open Repository: Python APIs for STIX 2
EveryInfra MCP server & agent plugin: scraper API for TikTok, Instagram, Amazon, YouTube, Xiaohongshu & Douyin. 573 data APIs across 106 platforms, from $0.56/1K calls. For Claude Code, Cursor, Codex.
From a universe of models to Collective Model Intelligence.