API archive entry · source-reported
Free Dictionary
Definitions, phonetics, pronunciations, parts of speech, examples, synonyms
Other Dictionaries APIs
These records share a directory category and are ordered by similarity of reported access facts. They are a shortlist, not proof of drop-in compatibility.
Chinese Text Project
Online open-access digital library for pre-modern Chinese texts
No auth · HTTPS reported · CORS Unknown
Indonesia Dictionary
Indonesia dictionary many words
No auth · HTTPS reported · CORS Unknown
WordSoHard
Word definitions with Scrabble validity and tile score in one call, built for word games
No auth · HTTPS reported · CORS Yes
Random Lexicon
Random words and definitions using optional filters
No auth · HTTPS reported · CORS Yes
Wiktionary
Collaborative dictionary data
No auth · HTTPS reported · CORS Yes
Collins
Bilingual Dictionary and Thesaurus Data
API key · HTTPS reported · CORS Unknown
How to compare them
Coverage
Compare exact endpoints, fields, geography, history, and update frequency.
Operating cost
Model request volume, caching, overages, support, and migration cost.
Integration risk
Test auth, errors, pagination, latency, versioning, and outage behavior.
Data rights
Review attribution, redistribution, retention, privacy, and commercial-use terms.
Source reference
This page separates source-reported facts from questions that need live provider verification.