Public APIs with no API key — page 25

Estimate the nationality of a first name

Network calculators, including subnets, DNS, binary, and security tools

Database of ICS files for non working days

Query information about your favorite Node.js libraries programatically

Determine if a lat/lon is on water or land

API for Current cases and more stuff about COVID-19 and Influenza

Belgium Government Open Data

Czech Republic Government Open Data

Denmark Government Open Data

Portugal Government Open Data

Slovakia Government Open Data

Slovenia Government Open Data

Sweden Government Open Data

Generate random passwords of varying complexities

API is intended to explore and visualize trends/patterns across the US innovation landscape

PhishStats is a phishing database and real-time feed used in cybersecurity research since 2014. Search verified phishing URLs, IPs, domains, and threat scores via web UI or REST API.

Rest Api for Phone specifications

Noise Background Image Generator

Placeholder bear pictures

Placeholder Dog pictures

Resizable Keanu Reeves placeholder images with grayscale and young Keanu options

Open low-cost PM2.5 sensor data

The Unofficial GraphQL for PokeAPI

Postal code search, country exports, and address validation data