Complete API List
Understanding human text.
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Word Associations
Freemium

What's another word for...?

More than just synonyms. Get related words like "cats" and "dogs" too! Find synonyms and related words for one word or a phrase.

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125,000 / month
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ULTRA
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MONTHLY
750,000 / month
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Sentiment Analysis
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Is this comment positive or negative?

Find out the tone of a user comment or post.

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FREE

FREE
$0
MONTHLY
Unlimited
Free API Key


Topic Tagging
Freemium

What are the topics and keywords?

Automatically generate topics and keywords for articles and blogs.

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10,000 / month
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BEST

PRO
$19
MONTHLY
125,000 / month
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ULTRA
$99
MONTHLY
750,000 / month
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Category Recommendation
Freemium

What category is my shopper trying to look for?

Help customers find what they are looking for by knowing the related product categories.

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BASIC
$0
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10,000 / month
$0.003 PER EXTRA
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BEST

PRO
$19
MONTHLY
125,000 / month
$0.001 PER EXTRA
Details
ULTRA
$99
MONTHLY
750,000 / month
$0.001 PER EXTRA
Details


Lemmatizer
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"Dogs" to "dog", "abilities" to "ability"...

Get the root form of a word.

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FREE

FREE
$0
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Unlimited
Free API Key


Language Scoring
Freemium

What's the difficulty level of this article?

Evaluate the difficulty level of a word, sentence, or paragraph and compare it with another.

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BASIC
$0
MONTHLY
10,000 / month
$0.003 PER EXTRA
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BEST

PRO
$19
MONTHLY
125,000 / month
$0.001 PER EXTRA
Details
ULTRA
$99
MONTHLY
750,000 / month
$0.001 PER EXTRA
Details


Word Graph Dictionary
Freemium

A dictionary and so much more!

Rich information for a word with definitions, associations, examples, and much more.

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BASIC
$0
MONTHLY
10,000 / month
$0.003 PER EXTRA
Details

BEST

PRO
$19
MONTHLY
125,000 / month
$0.001 PER EXTRA
Details
ULTRA
$99
MONTHLY
750,000 / month
$0.001 PER EXTRA
Details


Visual Context Graph
Freemium

Build a graph with words connected to other words.

Diagram information for visualizing concepts or mind maps.

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BASIC
$0
MONTHLY
10,000 / month
$0.003 PER EXTRA
Details

BEST

PRO
$19
MONTHLY
125,000 / month
$0.001 PER EXTRA
Details
ULTRA
$99
MONTHLY
750,000 / month
$0.001 PER EXTRA
Details


Word Quiz
Freemium

Vocabulary test with levels and exam-specific words (SAT, GMAT, etc).

Customized word association quiz for game and e-learning software.

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BASIC
$0
MONTHLY
10,000 / month
$0.003 PER EXTRA
Details

BEST

PRO
$19
MONTHLY
125,000 / month
$0.001 PER EXTRA
Details
ULTRA
$99
MONTHLY
750,000 / month
$0.001 PER EXTRA
Details