Free Public APIs for Developers and Agents
Free public web APIs that developers and AI agents can call. Entries come from the open public-apis list; each link was checked automatically (HTTP status) on the date shown, which says the site responded, not that the API is good.
Fun Fact
A simple HTTPS api that can randomly select and return a fact from the FFA database
Funding Signals
Companies that just raised funding, scored as sales leads, from public SEC filings
FunTranslations
Translate Text into funny languages
Futures Clock
Trading hours and session windows for 65 futures products on 16 global exchanges
FXNewsBias
AI-scored news sentiment for the 8 major forex currencies, refreshed every 3 hours
FXpeek
Source-linked historical reference exchange rates with CSV, JSON and an MCP server
Gaana
API to retrieve song information from Gaana
Game of Thrones Quotes
Some Game of Thrones quotes
GamerPower
Game Giveaways Tracker
Ganjoor
Classic Persian poetry works including access to related manuscripts, recitations and music tracks
gankdat
UK & EU tenders, UK planning, UK sanctions, US exclusions, UK insolvency and incorporations as JSON
Gateio
API provides spot, margin and futures trading operations
Gazette Data, UK
UK official public record API
GBIF
Global Biodiversity Information Facility
GcrawlAI
Web scraping, SERP API, screenshots, URL to Markdown and prebuilt extractors
GDBrowser
Easy way to use the Geometry Dash Servers
Geek-Jokes
Fetch a random geeky/programming related joke for use in all sorts of applications
GeekFlare
Provide numerous capabilities for important testing and monitoring methods for websites
Gemini
Cryptocurrencies Exchange
GEN
Create and edit video projects, with credit-based AI media generation
Genderize.io
Estimates a gender from a first name
GeneradorDNI
Data generator API. Profiles, vehicles, banks and cards, etc
Genius
Crowdsourced lyrics and music knowledge
Genrenator
Music genre generator
Genshin Impact
Genshin Impact game data
GeoApi
French geographical data
Geoapify
Forward and reverse geocoding, address autocomplete
Geocod.io
Address geocoding / reverse geocoding in bulk
Geocode.xyz
Provides worldwide forward/reverse geocoding, batch geocoding and geoparsing
Geocodify.com
Worldwide geocoding, geoparsing and autocomplete for addresses
GeoDataSource
Geocoding of city name by using latitude and longitude coordinates
GeographQL
A Country, State, and City GraphQL API
GeoJS
IP geolocation with ChatOps integration
Geokeo
Geokeo geocoding service- with 2500 free api requests daily
geoPlugin
IP geolocation and currency conversion
GeoScore
Score content for AI search citation readiness with a 0-100 GEO score and 8 structural metrics
GeraCode
Barcode (EAN-13, UPC-A, Code 128, ITF-14) and QR code images, PNG or SVG. Docs in Portuguese
Get Started with Web3
Bilingual Web3 lessons, glossary search and role-based learning paths
GetOTP
Implement OTP flow quickly
GetXAPI
Read Twitter / X data and post tweets, likes, retweets, follows, DMs via REST
Ghost
Get Published content into your Website, App or other embedded media
Giant Bomb
Video Games
Giphy
Get all your gifs
Git.io
Git.io URL shortener
GitHub
Repos, issues, PRs, code search
GitHub
Make use of GitHub repositories, code and user info programmatically
GitHub Contribution Chart Generator
Create an image of your GitHub contributions
GitHub ReadMe Stats
Add dynamically generated statistics to your GitHub profile ReadMe
GithubTrends
GitHub Trending repositories with star history and open-source alternatives to paid tools
Gitlab
Automate GitLab interaction programmatically
GlobalEntity
Official company data from 56 European business registers as normalized JSON
Gmail
Flexible, RESTful access to the user's inbox
GNews
Search for news from various sources
Go Module Proxy
Go module versions and source metadata
GoFile
Unlimited size file uploads for free
Goldprice.dev
Cross-validated gold, silver & copper spot, futures & 30-year history in 13 currencies
Google Analytics
Collect, configure and analyze your data to reach the right audience
Google Books
Books
Google Calendar
Display, create and modify Google calendar events
Google Cloud Natural
Natural language understanding technology, including sentiment, entity and syntax analysis
Google Docs
API to read, write, and format Google Docs documents
Google Drive
File Sharing and Storage
Google Earth Engine
A cloud-based platform for planetary-scale environmental data analysis
Google Firebase
Google's mobile application development platform that helps build, improve, and grow app
Google Fonts
Metadata for all families served by Google Fonts
Google Gemini
Multimodal generative AI for text, vision, and code generation
Google Keep
API to read, write, and format Google Keep notes
Google Maps
Create/customize digital maps based on Google Maps data
Google PageSpeed Insights
Website performance and Lighthouse audit scores
Google Photos
Integrate Google Photos with your apps or devices
Google Safe Browsing
Google Link/Domain Flagging
Google Sheets
API to read, write, and format Google Sheets data
Google Slides
API to read, write, and format Google Slides presentations
GoTiny
A lightweight URL shortener, focused on ease-of-use for the developer and end-user
GovContractScout
US state & local government contracts: search, details, NAICS lookup and AI match scoring
Grab
Track deliveries, ride fares, payments and loyalty points
GramScraper
Instagram and TikTok data API with 91 endpoints for profiles, posts, stories, reels, and comments
Graph Countries
Country-related data like currencies, languages, flags, regions+subregions and bordering countries
GraphHopper
A-to-B routing with turn-by-turn instructions
GraphQL Pokemon
GraphQL powered Pokemon API. Supports generations 1 through 8
Greenlit Books
Catalog of practical AI books with search, series, glossary and a claim ledger
GreyNoise
Query IPs in the GreyNoise dataset and retrieve a subset of the full IP context data
GridHub
Live wholesale electricity prices and demand across 25 grid zones
GridVigil
Pressure scores, demand, generation mix and alerts for the 10 major U.S. power grids
Groq
Fast AI inference API with free tier, supports Llama, Mixtral, Gemma models
GrünstromIndex
Green Power Index for Germany (Grünstromindex/GSI)
gstinapi
Verify Indian GST numbers (GSTIN): legal name, status, address and return filing history; free tier
GTFS Scorecard
Data-quality grades and prioritized fixes for 2,400+ public transit GTFS feed records
Guerrilla Mail
Disposable temporary Email addresses
Guild Wars 2
Guild Wars 2 Game Information
Gun Policy
International firearm injury prevention and policy
Gutendex
Web-API for fetching data from Project Gutenberg Books Library
GW2Spidy
GW2Spidy API, Items data on the Guild Wars 2 Trade Market
Gyazo
Save & Share screen captures instantly
GZW Data
Gray Zone Warfare weapons, missions, loot, armor and game data
Hackerearth
For compiling and running code in several languages
HackerNews
Social news for CS and entrepreneurship
HackerOne
The industry’s first hacker API that helps increase productivity towards creative bug bounty hunting
HackMyIP
IP geolocation, ISP and privacy/VPN scoring, email breach checks, DNS and WHOIS lookups
Hail History
Radar-detected hail history for any US address from NOAA NEXRAD Level-III hail detections, by year