Free Public APIs
A collection of 693 Free Public APIs for Students and Developers.
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🧾URL to Markdown
Converts a public web page or PDF into clean Markdown with a short YAML header. Returns Markdown by default and JSON when Accept: application/json is sent.
95 API Health
🎵FreqBlog Music Metadata
FreqBlog provides a music-metadata API that returns detailed audio features (BPM, key, mood, energy, genre, ISRC and more) for tracks. You can look up tracks by artist+title, ISRC, or upload audio for analysis and also resolve up to 50 tracks in a single bulk request.
90 API Health
📈Sharpe API
Sharpe provides real-time crypto derivatives and market data through a REST API, MCP server, and CLI. It publishes funding rates, futures analytics, arbitrage signals, token scanning, narrative tracking, and other trading intelligence.
90 API Health
👑VibeKing API
Public JSON API for VibeKing, a directory of "vibe-coded" products — AI-built apps, tools and SaaS. It returns structured product listings, liveness status, search and pagination, and badge SVGs. No signup or API key is required and CORS is open so it works from browsers.
90 API Health
🏟️HQ Live Sports API
The HQ Live Sports API provides real-time predictions and live sports intelligence for various sports, enabling integration into websites or applications while keeping the prediction engine secure on the Intelligence HQ infrastructure. Users can access endpoints for predictions, scores, and standings across multiple sports with appropriate API key permissions.
95 API Health
🧘♂️Open Mindfulness API
This free, public, read-only REST API offers access to The Holistic Care's open mindfulness resources, including research citations and a plain-language glossary. The API provides structured JSON data to support users in exploring mindfulness-related content without requiring authentication or an API key.
95 API Health
🍏pearOs API
The pearOs API provides access to the features of the pearos.xyz website, which is a free, open-source Linux distribution inspired by macOS. Users can retrieve various data related to the operating system and its functionalities, making it easy to integrate with other applications.
95 API Health
🔄Codex Reset API
The Codex Reset API provides publicly accessible information about Codex usage-limit resets, including a 24-48 hour forecast, verified reset history, and current service status. Users can interact with this read-only MCP server and receive data in JSON format without needing an API key or sign-up.
95 API Health
📧Disposable Email API
GrabMail's Disposable Email API allows users to create temporary email addresses to receive messages without requiring sign-up or API keys on public domains. Messages are accessible via HTTP requests and are automatically deleted after five days. Ideal for developers needing a quick, disposable inbox solution.
95 API Health
🍷Cork & Curve API
This API provides wine travel data for AI agents, including verified places, festivals with dates, and bookable experiences such as stays and car hire. Publicly accessible without a key, it offers an optional attribution feature for users who provide their X-API-Key.
90 API Health
🍽️TableJourney Agent API
This API provides food travel data for AI agents, including verified places, festivals, bookable experiences, and accommodations. Users can access booking links and optional attribution features, with public access and an optional API key for further customization.
82 API Health
🔗Agent Nexus API
The Agent Nexus API provides a continuously verified registry of APIs, MCP servers, and CLIs that AI agents can call. Users can discover capabilities, search the registry, and retrieve detailed information about specific interfaces without needing an account or an API key.
85 API Health
🏢CoworkingView API
The CoworkingView API provides access to a comprehensive catalogue of coworking spaces, allowing users to retrieve information about properties, operators, and local features. It includes endpoints for querying property details, operator profiles, market rates, and geographical data without requiring an API key.
95 API Health
✂️Trimwise Prompt Compression
Trimwise API enables efficient compression of lengthy documents into concise AI prompts while adhering to specified budgets. It supports both queryless and query-aware extraction methods, allowing users to select the most relevant excerpts from multiple sources under defined limits.
95 API Health
🏛️Who Represents Address
This API allows users to input a U.S. street address and retrieve detailed information about congressional districts, state legislative districts, and current officeholders including federal and state legislators, statewide executive officials, and mayors for covered cities. It serves as a replacement for the retired Google Civic Information endpoint, providing results in JSON format for both individual addresses and batch lookups of up to 40 addresses.
61 API Health
🔄GetConverter API
The GetConverter API provides a JavaScript library for accessing conversion services found on getconverter.org. Users can easily convert various units of measurement programmatically with simple function calls.
95 API Health
📊Detection Runs Dataset
This API provides access to a dataset of detection runs performed by AntiBrow against public fingerprinting and anti-bot detectors. Users can retrieve results in JSON and CSV formats, which include detailed information about each run, checks, and their results without the need for an API key.
95 API Health
💰Tax Calculation API
A REST API designed for calculating US federal, state, and local income taxes for the year 2026. It provides deterministic responses with source attribution, requires no API key, and allows up to 60 requests per minute from a single address.
90 API Health