Top Text Analysis APIs on API.market

Browse our collection of high-quality Text Analysis APIs

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Text classification
5.0(1)

The Stem Text API reduces words to their root or stem form, helping to normalize text for search, indexing, and natural language processing (NLP) tasks.

3•1
1.5K FREE API units
Text classification
5.0(1)

The Singularize Word API converts plural nouns into their singular form, making it an essential tool for text processing, grammar-checking, and natural language

2•1
1.5K FREE API units
Translation
5.0(1)

The List Word Synonyms API provides alternative word choices for a given noun, enhancing vocabulary variety, SEO optimization, and content creation.

2•1
1.5K FREE API units
Language detection
5.0(1)

The Detect Language API identifies the language of a given text, ranking possible languages by confidence score.

5•2
1.5K FREE API units
Text classification
5.0(1)

The Tag Part of Speech API assigns grammatical labels to words in a sentence, helping applications analyze text structure and meaning.

4•2
1.5K FREE API units
Language detection
5.0(1)

Quickly and accurately detect languages with confidence values, boosting translation and communication efficiency.

2•0
200 FREE API units
Entity extraction

The Extract Publish Date API retrieves the publication date of an article, such as a news story, blog post, or online publication.

2•12
1.5K FREE API units
Entity extraction

The Extract Entities API analyzes text to identify and extract key entities, such as people, locations, and organizations.

4•1
1.5K FREE API units
Entity extraction

The Extract Dates API identifies and normalizes date expressions found in text, making it ideal for calendar applications, data extraction, and NLP pipelines.

2•1
1.5K FREE API units
Sentiment analysis

The Detect Sentiment API analyzes text to determine emotional tone, providing sentiment classification for entire documents and individual sentences.

5•1
1.5K FREE API units
Text classification

The Score Readability API evaluates the complexity and clarity of a given text using multiple standard readability metrics.

3•1
1.5K FREE API units
Entity extraction

The Extract Authors API identifies and retrieves author information from articles, blogs, and news pages, making it easy to track and display contributor detail

2•1
1.5K FREE API units
Text classification

Intelligent Survey Response Analyzer API detects and flags bot patterns, automating data cleaning and fraud detection for surveys.

3•6
10 FREE API units
Grammar & spelling

The Correct Spelling API identifies and corrects spelling errors in text, supporting multiple languages. This API is perfect for content creation and chatbots.

2•1
1.5K FREE API units
Sentiment analysis

Classify the sentiment of a text and get a label with a confidence score.

2•10
$0.001 per API unit
Translation

Translate speech to speech, speech to text, text to speech or text to text, or transcribe speech, across dozens of languages with Meta's SeamlessM4T.

2•24
$0.0065 per API unit
Text classification

Rate the toxicity of text-to-image prompts from 0 (safe) to 10 (toxic) with a Llama 13B fine-tune.

2•6
$0.0022 per API unit
Language detection

Count words, characters and punctuation in Arabic, English or mixed text, and get the Arabic and English words as separate lists.

2•172
1K FREE API units
Text classification

Count words, sentences and reading time, score Flesch readability, build URL slugs, hash text with SHA and encode or decode Base64 in one API.

1•5
$5/month
Language detection

Detect the language of any text and get the ISO 639-3 code, English name, confidence, a reliability flag and the top 5 candidate languages.

1•2
$5/month
Grammar & spelling

Score English or Spanish text with Flesch, Flesch-Kincaid, Gunning Fog, SMOG and more, plus word counts, grade level and reading time.

1•3
$5/month
Grammar & spelling

Look up 147,000 English words: definitions, examples, synonyms, antonyms, IPA and ARPAbet pronunciation, syllables, rhymes and autocomplete.

1•6
$5/month
Text classification

Search 1,949 Emoji 17 emojis by keyword and get names, keywords, category, shortcodes, codepoints and HTML entities in 6 languages.

1•11
$5/month
Grammar & spelling

Check English text (US or UK) for misspellings and get ranked suggestions, offsets and auto-corrected text. Bing Spell Check compatible.

1•3
$5/month
Text classification

Score English text as positive, negative or neutral with a -1 to +1 score, class proportions and per-sentence results, using VADER rules.

1•3
$5/month
Text classification

Extract the key phrases and most frequent words from any text in 50+ languages with RAKE, language detection, scores and counts.

1•3
$5/month
Grammar & spelling

Look up synonyms, antonyms and broader terms for 147,000 English words and phrases, grouped by meaning with part of speech and definitions.

1•2
$5/month
Grammar & spelling

Find perfect rhymes and pronunciation (ARPAbet and IPA) for English words, and count syllables per word and per line with haiku detection.

1•3
$5/month
Text classification

Summarize any text or article URL by picking its most important sentences with TextRank, plus keywords and reading time saved, in 50+ languages.

1•3
$5/month
Sentiment analysis

Label customer reviews and social comments with complaint type, sentiment, return intent and reply needed, each with a probability.

1•2
50 FREE API units
Entity extraction

AI Output Guardrail & Content Compliance Check. Check a document or landing page for readable content, SEO readiness, and valid contact addresses before publ.

2•4
3 FREE API units
Translation

The official Korean Basic Dictionary for learners: 56,555 words, 594,578 examples, translations in 11 languages, graded by learner level.

1•6
500 FREE API units
Text classification

Extract summary, decisions, and action items from meeting transcripts using AI. Supports Korean and English input.

2•7
300 FREE API units
Sentiment analysis

NLP aggregate — sentiment, toxicity, language detection, NER, semantic similarity, and spellcheck.

1•3
1K FREE API units
Text classification

Classify content into IAB categories using tiered and unified prediction endpoints.

1•5
100 FREE API units
Sentiment analysis

Accurately analyze emotional tone in any text using the VADER model, delivering compound, positive, negative, and neutral sentiment breakdowns, optimized for so

1•4
100 FREE API units
Language detection

Instantly detect the language of any text across 55+ languages with high confidence, performing real-time, offline analysis.

1•6
100 FREE API units
Text classification

Comprehensive text processing API offers Markdown conversion, hashing, base64, and more with fast performance, so enhance your apps now.

2•5
3K FREE API units
Text classification

Analyze text for readability, skimmability, style, and interestingness with advanced metrics and fast performance, enabling optimized content.

1•2
1.5K FREE API units
Text classification

Quickly pluralize any English word with high accuracy using this API, improving text processing and ensuring grammatically correct content.

2•1
1.5K FREE API units
Text classification

Curated legal contract intelligence, 250+ records covering clause types, risk patterns, governing laws, document types, and real sample analyses.

2•12
$29/month
Text classification

Our AI Content Detector API offers rapid and accurate detection across 26 languages using 4 models.

9•45
100 FREE API units
Text classification

Detect AI-generated content from GPT, Claude, Gemini, and other LLMs. Get sentence-level scores, overall confidence, and writing pattern analysis via API.

1•0
50 FREE API units