usefulapi

Crowdin MCP server. MCP server for Crowdin — projects, files, strings, translation progress, tasks, and members.

Claude

Open Settings → Connectors → Add custom connector
Paste this URL:
https://crowdin.usefulapi.io/mcp
Authenticate with Crowdin when prompted

Cursor · VS Code · Windsurf · Cline

Add to your MCP config, then reload & authorize:

{
  "mcpServers": {
    "crowdin": {
      "url": "https://crowdin.usefulapi.io/mcp"
    }
  }
}

live14 toolsFree 100 tool calls / monthPro $9/mo · $90/yr

Tools 14

Tool	Type	What it does
`crowdin_list_projects`	read	List projects List projects the token can access (id, name, source and target languages).
`crowdin_get_project`	read	Get project Get a single project's details by id (settings, languages, counts).
`crowdin_list_files`	read	List files List source files in a project (id, name, path, type, status).
`crowdin_list_branches`	read	List branches List version branches in a project.
`crowdin_list_directories`	read	List directories List directories (folders) in a project.
`crowdin_list_strings`	read	List strings List source strings in a project (id, text, identifier, context).
`crowdin_get_language_progress`	read	Get language progress Per-target-language translation and approval completion percentages.
`crowdin_list_tasks`	read	List tasks List translation and proofreading tasks (title, status, assignees).
`crowdin_list_members`	read	List members List project members with their roles and permissions.
`crowdin_list_supported_languages`	read	List supported languages Crowdin's catalog of supported languages (id, name, locale, code).
`crowdin_add_string`	write	Add string Add a source string to a file in a project (additive).
`crowdin_add_translation`	write	Add translation Add a translation for a source string in a target language (additive).
`crowdin_usage_status`	meta	Usage status (free-tier meter) Report the caller's current free-tier usage this month: calls used, monthly limit, remaining, and whether the cap is reached. Read-only; does not count against the meter.
`crowdin_upgrade`	meta	Upgrade to Pro (unlimited) Subscribe to the Pro plan for UNLIMITED Crowdin tool calls (the free tier caps monthly usage). Choose monthly ($9/month) or yearly ($90/year — 2 months free) billing. Returns a Stripe Checkout link to open in your browser; after payment your account upgrades automatically. Read-only; does not count against the meter.

Pricing

Plan	Price	Limit
Free	$0	100 tool calls / month
Pro	$9/mo · $90/yr	Unlimited

This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.