Open-Meteo
Global weather forecast API for non-commercial use
Build an agent toolbelt
Keyless and CORS-open — an autonomous agent can call every one of these with no signup step in the way.
Wikipedia
Mediawiki Encyclopedia
Frankfurter
Exchange rates, currency conversion and time series
CoinGecko
Cryptocurrency Price, Market, and Developer/Social Data
Nager.Date
Public holidays for more than 90 countries
Zippopotam.us
Get information about place such as country, city, state, etc
USGS Earthquake Hazards Program
Earthquakes data real-time
Deck of Cards
Deck of Cards
QuickChart
Generate chart and graph images
Kroki
Creates diagrams from textual descriptions
Wandbox
Code compiler supporting 35+ languages mentioned at wandbox.org
Crossref Metadata Search
Books & Articles Metadata