Text Analysis
Every listing carries the same fields in the same order. Counts beside each filter update as you narrow.
| API | Pricing | Auth | Format | Free tier | Status |
|---|---|---|---|---|---|
Cloudmersive Natural Language ProcessingSentiment, entity extraction, POS tagging, language detection and translation via one text API. AI & Machine Learning › Text Analysis | Freemium | API key | JSON | <100/day | Untested |
Code DetectionDetects and labels code snippets inside text, classifies the language, and returns formatted output. AI & Machine Learning › Text Analysis | Free trial | API key | JSON | — | Untested |
Detect LanguageIdentifies the language of a text snippet from 216 supported languages, with a confidence score. AI & Machine Learning › Text Analysis | Freemium | API key | JSON | 1k–10k/day | Live |
DialogflowGoogle's NLU platform for building chatbots and voice agents: intents, entities, multi-turn dialogue. AI & Machine Learning › Text Analysis | Freemium | OAuth | JSON | 10k+/day | Untested |
FinSignalsClassifies Reddit and news posts about stocks into sentiment, bullish/bearish stance, and quality signals. AI & Machine Learning › Text Analysis | Freemium | API key | JSON | <100/day | Live |
Google Cloud Natural Language APISentiment, entity, syntax and content-classification analysis for text via Google Cloud. AI & Machine Learning › Text Analysis | Freemium | OAuth | JSON | 100–1k/day | Live |
languagelayerDetects which of 173 languages a piece of text is written in, with a confidence score. AI & Machine Learning › Text Analysis | Freemium | API key | JSON | <100/day | Live |
LanguageToolChecks grammar, spelling and style in 30+ languages; free public endpoint, paid API for scale. AI & Machine Learning › Text Analysis | Freemium | None | JSON | 10k+/day | Untested |
Sentino Personality APIScores text or survey responses into personality profiles (Big Five, NEO, MBTI, DISC, HEXACO) via NLP. AI & Machine Learning › Text Analysis | Paid | API key | JSON | — | Live |
ToHumanRewrites AI-generated text into natural, human-sounding prose using a self-hosted fine-tuned model. AI & Machine Learning › Text Analysis | Freemium | API key | JSON | — | Untested |
Cloudmersive Natural Language ProcessingFreemiumUntested
Sentiment, entity extraction, POS tagging, language detection and translation via one text API.
API key · JSON
<100/day
OpenAPI spec
Code DetectionFree trialUntested
Detects and labels code snippets inside text, classifies the language, and returns formatted output.
API key · JSON
—
no machine-readable spec
Detect LanguageFreemiumLive
Identifies the language of a text snippet from 216 supported languages, with a confidence score.
API key · JSON
1k–10k/day
no machine-readable spec
DialogflowFreemiumUntested
Google's NLU platform for building chatbots and voice agents: intents, entities, multi-turn dialogue.
OAuth · JSON
10k+/day
OpenAPI spec
FinSignalsFreemiumLive
Classifies Reddit and news posts about stocks into sentiment, bullish/bearish stance, and quality signals.
API key · JSON
<100/day
no machine-readable spec
Google Cloud Natural Language APIFreemiumLive
Sentiment, entity, syntax and content-classification analysis for text via Google Cloud.
OAuth · JSON
100–1k/day
OpenAPI spec
languagelayerFreemiumLive
Detects which of 173 languages a piece of text is written in, with a confidence score.
API key · JSON
<100/day
llms.txt
LanguageToolFreemiumUntested
Checks grammar, spelling and style in 30+ languages; free public endpoint, paid API for scale.
None · JSON
10k+/day
OpenAPI spec
Sentino Personality APIPaidLive
Scores text or survey responses into personality profiles (Big Five, NEO, MBTI, DISC, HEXACO) via NLP.
API key · JSON
—
no machine-readable spec
ToHumanFreemiumUntested
Rewrites AI-generated text into natural, human-sounding prose using a self-hosted fine-tuned model.
API key · JSON
—
no machine-readable spec
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