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.
Microburbs
Australian property and suburb data: valuations, sales, rents, schools, demographics, risk, zoning
Microlink.io
Extract structured data from any website
Microsoft Graph
Access the data and intelligence in Microsoft 365, Windows 10, and Enterprise Mobility
Microsoft Security Response Center (MSRC)
Programmatic interfaces to engage with the Microsoft Security Response Center (MSRC)
Minecraft Server Status
API to get Information about a Minecraft Server
Mintlify
For programmatically generating documentation for code
Mistral AI
High-performance LLM API by Mistral AI including Mistral and Mixtral models, with a free tier
Mixcloud
Music
MLB Records and Stats
Current and historical MLB statistics
MMO Games
MMO Games Database, News and Giveaways
Mockaroo
Generate fake data to JSON, CSV, TXT, SQL and XML
mod.io
Cross Platform Mod API
Modelfax
LLM pricing, context windows and deprecation dates, schema-validated and updated daily
ModelPartFinder Error Codes
Lookup appliance and equipment error codes by brand and code, with recommended replacement parts
MojoAuth
Secure and modern passwordless authentication platform
monerometrics
Reorg-aware Monero (XMR) network metrics, mining-pool centralization and chain reorganizations
Monitly
Official statistics from Eurostat, World Bank, OECD, IMF and WHO for 150+ countries
Mono
Connect with users’ bank accounts and access transaction data in Africa
Monocrawl
Public posts, profiles, comments and products from 70+ social, shopping and search platforms
Monster Hunter World
Monster Hunter World data
Moov
The Moov API makes it simple for platforms to send, receive, and store money
Moradas
Portuguese address autocomplete and 7-digit postal codes (CP7)
MORVS
Source-linked US regulatory and public records: SEC filings, enforcement actions, recalls
MostExpensiveWatches
Documented luxury watch auction records, live listings, valuations and price indices
Movebank
Movement and Migration data of animals
Movie Quote
Random Movie and Series Quotes
MoviOdds
Real-time bet365 soccer odds, every market, pre-match and in-play, over REST and WebSocket
Mozilla http scanner
Mozilla observatory http scanner
Mozilla tls scanner
Mozilla observatory tls scanner
msgboard
Public message board for agent-to-agent messaging, no account or key
MusicBrainz
Music
Musixmatch
Music
MY IP
Get IP address information
MyAnimeList
Anime and Manga Database and Community
Mycelium
Corporate carbon emissions disclosures (scope 1, 2 and 3), company-reported and estimated
MyGene.info
Gene annotation queries and ID lookup
MyIPRightNow
Public IP address with network, location, and connection details
MyVaccination
Vaccination data for Malaysia
Météo-France
French weather forecasts and alerts
Nager.Date
Public holidays for more than 90 countries
Namedays Calendar
Provides namedays for multiple countries
NameGender
Gender from a first name, full name, email or username, with probability
NaMoMemes
Memes on Narendra Modi
NASA
NASA data, including imagery
NASA ADS
NASA Astrophysics Data System
NASA InSight
Mars weather data from InSight lander
NASA POWER
Global solar and weather data for energy and agriculture
Nasdaq Data Link
Stock market data
National Park Service, US
Data from the US National Park Service
National Vulnerability Database
U.S. National Vulnerability Database
Nationalize.io
Estimate the nationality of a first name
NAVER
NAVER Login, Share on NAVER, Social Plugins and more
Navitia
The open API for building cool stuff with transport data
NBA Data
All NBA Stats DATA, Games, Livescore, Standings, Statistics
NBA Stats
Current and historical NBA Statistics
NCBI E-utilities
Biomedical literature, sequences and gene databases
Neetix Liveliness
Face liveness, presentation-attack detection and 1:1 face match for identity verification
NekosBest
Neko Images & Anime roleplaying GIFs
Neotimo DGFiP Mirror
French DGFiP registry of certified e-invoicing platforms (Plateformes Agréées), searchable by SIRET
Nerkhsanj
Iran free-market USD, EUR, CNY, gold and coin rates in toman, live and daily archive since 2010
Netlify
Netlify is a hosting service for the programmable web
Network Data Labs
IP geolocation with accuracy radius, ASN, and flags for Tor exits, known VPN networks and hosting
NetworkCalc
Network calculators, including subnets, DNS, binary, and security tools
Neuronto ARD Registry
Search index of MCP servers, agents and APIs, with the tools each server actually exposes
New York Times
The New York Times Developer Network
News
Headlines currently published on a range of news sources and blogs
NewsData
News data API for live-breaking news and headlines from reputed news sources
Newsflash
Deduplicated news events from 260+ sources with corroboration/confidence scores for AI agents
NewsMesh
Premium news data from thousands of sources
NewsX
Get or Search Latest Breaking News with ML Powered Summaries 🤖
Newton
Symbolic and Arithmetic Math Calculator
Nexchange
Automated cryptocurrency exchange service
NexWall
Curated 4K portrait phone wallpapers across 50+ categories
NHL Records and Stats
NHL historical data and statistics
NHS Health A-Z
NHS conditions, medicines and guidance
NHTSA
NHTSA Product Information Catalog and Vehicle Listing
NHTSA Vehicle Recalls
NHTSA safety recalls by model year, make and model with component, consequence and remedy
Nigeria PAYE
Nigerian income tax (PAYE) and take-home pay under the Nigeria Tax Act 2025
NLP Cloud
NLP API using spaCy and transformers for NER, sentiments, classification, summarization, and more
NOAA CO-OPS
US coastal tides, water levels, currents and meteorological observations
Nobel Prize
Open data about nobel prizes and events
Nominatim
Provides worldwide forward / reverse geocoding
Noms
Nutrition data for 3.7M foods and 298K brands across 230 countries, with barcodes and images
Non-Working Days
Database of ICS files for non working days
Non-Working Days
Simple REST API for checking working, non-working or short days for Russia, CIS, USA and other
Nonobench
Open-source benchmark of how well LLMs solve nonogram puzzles
Noozra
Free news headlines from 200+ curated RSS sources
NoPhishy
Check links to see if they're known phishing attempts
NoPunt
Weekly NFL game picks with model win probability, confidence tier and spread
NORTH7 Agent
Trading signals, market analysis and geopolitical intelligence
Not Human Search
AI tool discovery with agentic scoring for 8,600+ tools and MCP servers
Notion
Integrate with Notion
NovaDax
NovaDAX API to access all market data, trading management endpoints
NovaFortix Dev
Zero-auth REST endpoints for mock user profiles, UUIDs and HTTP status codes
Nownodes
Blockchain-as-a-service solution that provides high-quality connection via API
npm Registry
Query information about your favorite Node.js libraries programatically
NPPES
National Plan & Provider Enumeration System, info on healthcare providers registered in US
NuGet
.NET package versions, metadata and search
Numlookup
Phone number validation and carrier lookup API with global coverage
Numverify
Phone number validation