Thesaurus

Find synonyms and antonyms for any word. Perfect for vocabulary building, writing assistance, and educational applications.

Get API Key

Overview

Use Cases

Writing assistance and enrichment tools
Vocabulary learning applications
Word game development
Educational platforms and flashcards
Content creation and SEO tools

Features

Synonyms and antonyms in a single request

Case-insensitive lookup

Curated English word dataset

Fast, low-latency in-memory responses

API Endpoints

Thesaurus Lookup

Returns synonyms and antonyms for the given word.

GET

https://api.requiems.xyz/v1/text/thesaurus/{word}

Parameters

Name	Type	Required	Description
word	`string`	Required	The word to look up in the thesaurus

Try it out

Live Demo

Request

word * (string)

The word to look up in the thesaurus

Response Fields

Field	Type	Description
word	`string`	The normalized (lowercased) word that was looked up
synonyms	`array of strings`	List of words with similar meaning
antonyms	`array of strings`	List of words with opposite meaning

Code Examples

curl https://api.requiems.xyz/v1/text/thesaurus/happy \
  -H "requiems-api-key: YOUR_API_KEY"

import requests

url = "https://api.requiems.xyz/v1/text/thesaurus/happy"
headers = {"requiems-api-key": "YOUR_API_KEY"}

response = requests.get(url, headers=headers)
data = response.json()['data']
print(f"Synonyms: {data['synonyms']}")
print(f"Antonyms: {data['antonyms']}")

const response = await fetch('https://api.requiems.xyz/v1/text/thesaurus/happy', {
  headers: {
    'requiems-api-key': 'YOUR_API_KEY'
  }
});

const { data } = await response.json();
console.log('Synonyms:', data.synonyms);
console.log('Antonyms:', data.antonyms);

require 'net/http'
require 'json'

uri = URI('https://api.requiems.xyz/v1/text/thesaurus/happy')
request = Net::HTTP::Get.new(uri)
request['requiems-api-key'] = 'YOUR_API_KEY'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

data = JSON.parse(response.body)['data']
puts "Synonyms: #{data['synonyms'].join(', ')}"
puts "Antonyms: #{data['antonyms'].join(', ')}"

Error Responses

not_found

The word was not found in the thesaurus dataset.

bad_request

The word path parameter is missing.

No results found