languagetool.org
LanguageTool is a grammar, spelling, and style checking service for more than 30 languages. It offers hosted proofreading APIs as well as open-source software that can be self-hosted.
LanguageTool exposes two developer-facing HTTP surfaces: a Premium REST API documented by an OpenAPI spec at `api.languagetoolplus.com/v2`, authenticated with a username/email plus API key, and a separate public unauthenticated proofreading endpoint at `api.languagetool.org/v2/check`.
- LanguageTool HTTP APIdiscovered
Sign in to your LanguageTool account, then open Access Tokens in the editor settings to create or copy your API key. Use it together with your LanguageTool login email/username as the username form field and the token as the apiKey form field when calling the Premium API.
conventions · 0/8 published
- integrations.json✗
/.well-known/integrations.json - llms.txt✗
/llms.txt - API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✗
/.well-known/oauth-protected-resource - Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing