HTTP Request & Response Service. Useful for testing HTTP REST tools.
Fake data generator. Can generate names, addresses, phone numbers, etc.
A collection of small corpuses of interesting data.
Semi structured API for the CIA World Factbook, a reference of information for 267 countries.
Dynamic image generator. Can generate png, jpg and gif images at various resolutions.
Various algorithms to mesure the similarity of N strings.
Base32 Geoashing as a service, with geojson support.
Reverse geocoding as a simple offline service.
Microservice to generate a diff (rfc 6902) between two json documents.
Microservice to watch RSS or Atom feeds, and trigger notifications via webhooks for new items.