Free public APIs
1216 free APIs for your next project, with features and use-case ideas. Page 17 of 51.
Breezometer Pollen API v2
Make every Day Count: Access Pollen Data for Healthy Living
Carbon Interface
Empowering Experiences with the Future of Interfaces
Climatiq
Building a better world with climate data
Cloverly Carbon Offset API
Offset your emissions with Cloverly
EnergiDataService
Your direct connection to climate-friendly energy
Gruenstromindex
Living climate and environment.
IQAir Air Pollution Data API
Help people breathe better - wherever they are.
Luchtmeetnet API
The air quality monitoring network powered by the Open Data project
National Grid Electricity System Operator API
Fueling the world with the power of data
LASS Pollution Monitoring API
Live monitoring of air quality around the world
PVWatts Version 6
An Configurable Solar Power Estimation Tool
SRP Energy API
Harness the Power of Data with the SRP Energy API
SeatGeek Platform API
Ticket discovery with SeatGeek Platform API
Ticketmaster API
Unlock the power of live entertainment
VAT Validation Rates API
Validate VAT numbers in real-time and securely with the Abstract VAT Validation Rates API
AletheiaAPI
Bringing Transparency to Data Through AI
Alpaca Data API v2
The restful market data API for developers, designed for the next generation of fintech apps.
AlphaVantage
Real-Time and Historical Data for Technical Analysis and Machine Learning
Marketstack
Unlock the potential of global financial market data
Atom
Better Investment. Better Life.
BB Contributor API
API for open banking and customer engagement
Billplz API
Faster Payment Processing Solutions
Binlist API
Making Banks and Financial Institutions Smarter with ASN Lookup
Boleto Cloud
One simple API to generate, manage and track payments