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GrammarBot

Freemium#59 of 88 in Grammar Checkers

GrammarBot: A focused English grammar API with structured edits and usage-based pricing. Ranked #59 of 88 in Grammar Checkers by our editors (3.0/10); pricing: Free plan; best for developers embedding grammar correction.

3.0/10Editor score

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GrammarBot3.0 Visit GrammarBot

At a glance

Editor score
3.0 / 10
Pricing
Free plan
Best for
Developers embedding grammar correction
Free plan
Yes
Paid from
$0.01/unit usage-based
Tone detection
No
Facts checked
21 Sep 2026

Where it wins
- Structured edits include offsets, replacements, and error categories
- Automatic correction plus corrected text in API responses
- Usage-based Neural pricing starts at $0.01 per 1,000 characters
Where it doesn't
- Focused on English API use
- No browser extension, desktop app, or mobile app
- No style suggestions, tone detection, or listed integrations

Our verdict on GrammarBot

GrammarBot is a cloud API for developers adding grammar, spelling, and punctuation correction to applications and services. It accepts text and returns corrected text alongside structured edit information, including positions, replacements, and error categories. The product is aimed at small, mid-market, and enterprise teams that need correction inside their own software rather than a standalone writing application. Its documented language parameter is English, making it a focused option for English-language workflows.

Pricing is usage-based rather than per user or per month. The Free plan provides the first-generation grammar and spelling checker. Neural plans charge $0.02 per 1,000 characters for usage below 3 million characters, $0.015 per 1,000 characters from 3 million to 12 million characters, and $0.01 per 1,000 characters from 12 million to 30 million characters. Usage above 30 million characters has custom pricing. The Neural API provides grammar and spelling correction, while the API also supports JSON requests, automatic correction, optional XML-formatted corrections, usage limits, and rate limiting.

GrammarBot fits products that need an API-first correction layer and the ability to apply or display precise edits programmatically. Its structured offsets and replacements are particularly relevant when an application needs to mark changes or build its own editing experience. Email support and documentation support implementation, while access is available through API keys and RapidAPI for some services. Choose GrammarBot when embedded English correction, structured responses, and character-based pricing are the priority. Choose another grammar checker when users need browser, desktop, or mobile access, style suggestions, tone detection, or a broader language offering.

Your product? Our editors can test GrammarBot in depth and publish a review, labelled as paid · from $149/mo →

GrammarBot pricing

Plans Free planFreemium A usable free plan; paid tiers unlock the limits above. Prices checked 21 Sep 2026.

See plans on grammarbot.io

All 5 GrammarBot plans and prices →

GrammarBot fact sheet

Free plan	Yes
Paid from	$0.01/unit usage-based
Browser extension	No
Desktop app	No
Mobile app	No
Style suggestions	No
Tone detection	No
Languages supported	1
Deployment	Cloud
Support	Email, Docs
Built for	Small business, Mid-market, Enterprise (editorial estimate)
Pricing	Free plan (source)
Website	grammarbot.io
Facts checked	21 Sep 2026

Alternatives to GrammarBot

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Featured on iTechGuides

GrammarBot is listed in our Grammar Checkers directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update