SOUNDTRACK // IRON UNDER PRESSURE
JEZWEB // GRID OSv2026
JEZWEB

> mcp // utilities

Spell Checker
for AI.

Multi-language spell checking and AI-powered grammar correction for AI agents (53 languages)

Spell checking sounds simple until you need it across dozens of languages, integrated into an AI workflow. This server handles spelling, grammar and style checking across 53 languages, with fast dictionary-based spell checking for speed, and an AI grammar pass for the nuanced stuff. It corrects in-place and returns a full change log, so your agent knows exactly what was fixed.

GOOD FOR // AI agents and workflows that need reliable text quality checking, for content pipelines, multilingual customer communications, or any system where clean, correct copy matters.

Spell checking in 53 languages

Detect misspelled words with line and column positions, plus correction suggestions. Language auto-detection means you don't need to specify it: the server figures it out. Fast and free, using dictionaries rather than AI.

Automatic correction

Apply the first suggestion for every spelling error automatically, with a full change log showing what was corrected. Results are stored with a 30-day expiry so they can be retrieved or audited later.

AI grammar and style checking

For grammar, punctuation and style issues beyond simple spelling, an AI model (DeepSeek R1 32B) analyses the text with language-aware prompts and returns detailed errors with suggestions and context.

Check this product description for spelling errors.

Correct the spelling and grammar in this customer email draft.

What language is this text written in, and are there any errors?

Run a grammar check on this French support message.

Spell Check Analyze Analyze text for spelling errors with line/column positions and suggestions. Supports 53 languages with auto-detection. Uses Hunspell dictionaries.
Grammar Check Check text for grammar, punctuation, and style issues using AI. Returns detailed errors with context, suggestions, and rule categorization.
Auto-Correct Automatically correct spelling and/or grammar errors. Supports spelling-only, grammar-only, or combined modes. Documents stored in R2.

Works with Claude (Code, Desktop, claude.ai), and any MCP-compatible client. OAuth on first connect: no keys to paste.

claude mcp add --transport http spell-checker-mcp https://spellcheck.mcp.jezweb.ai/mcp

claude.ai: Settings → Connectors → Add connector → https://spellcheck.mcp.jezweb.ai/mcp