Is the Merriam-Webster API free to use?

A free tier with limited requests is available; higher volumes require a paid plan.

How do I access the Merriam-Webster API?

Register for a developer account on their site, generate an API key, and include it in HTTPS requests to the endpoints.

JSON responses containing word definitions, pronunciations, synonyms, antonyms, and example usage.

The Merriam-Webster API provides structured access to dictionary definitions and thesaurus synonyms.

It serves developers building NLP pipelines, reference tools, and language learning platforms that need reliable word data.

Embed word definitions and pronunciations directly into text editors or note-taking tools to help users verify meanings without leaving the app.

Power synonym and antonym suggestions in SEO writers, email composers, or creative writing platforms to improve vocabulary variety.

Supply accurate dictionary entries and related word data to flashcard or vocabulary-building applications for learners.

1Sign up on the Merriam-Webster developer portal and obtain an API key
2Review the available endpoints for dictionary and thesaurus in the documentation
3Construct HTTPS requests including your API key as the authentication parameter
4Test calls with sample words to retrieve definitions or synonyms
5Handle JSON responses and integrate the lexical data into your application logic

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