A fast, multilingual Model Context Protocol (MCP) server for spell checking
SpellChecker MCP MCP server is a locally run integration for AI assistants that speak the Model Context Protocol. A fast, multilingual Model Context Protocol (MCP) server for spell checking.
A fast, multilingual Model Context Protocol (MCP) server that provides spell-checking capabilities to Large Language Models. This server enables LLMs to check spelling in text, files, and entire projects with syntax-aware parsing for code files.
Once SpellChecker MCP is connected, these are the calls the assistant has available:
check_spelling — Checks text for spelling errors and returns misspellings with suggestionsis_correct — The is_correct tool exposed by this serverget_suggestions — The get_suggestions tool exposed by this serveradd_to_dictionary — The add_to_dictionary tool exposed by this serverlist_languages — The list_languages tool exposed by this servercheck_file — The check_file tool exposed by this servercheck_folder — The check_folder tool exposed by this serverPrerequisites — The Prerequisites tool exposed by this serverSetup — The Setup tool exposed by this serverYou will need one environment variable: SPELLCHECKER_LANGUAGES. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. SpellChecker MCP's toolset — check_spelling, is_correct, get_suggestions and 6 more — is a fair guide to whether it matches your workflow. It is maintained by morahan; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| check_spelling | Checks text for spelling errors and returns misspellings with suggestions. |
| is_correct | The is_correct tool exposed by this server. |
| get_suggestions | The get_suggestions tool exposed by this server. |
| add_to_dictionary | The add_to_dictionary tool exposed by this server. |
| list_languages | The list_languages tool exposed by this server. |
| check_file | The check_file tool exposed by this server. |
| check_folder | The check_folder tool exposed by this server. |
| Prerequisites | The Prerequisites tool exposed by this server. |
| Setup | The Setup tool exposed by this server. |
{
"mcpServers": {
"spellchecker": {
"command": "node",
"args": ["/path/to/spellchecker-mcp-server/dist/index.js"],
"env": {
"SPELLCHECKER_LANGUAGES": "en-US,es,fr"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| SPELLCHECKER_LANGUAGES | Configuration value read at startup. | Optional |
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