Tools

OpenCage's official MCP: geocode addresses and place names, reverse geocode coordinates (with admin area, time zone and more), and check API quota. For small lookups; use its CLI for batches. Needs an OpenCage API key (free trial), Node.js 20+, and manual setup from a repo clone.

Cartesia's official voice MCP: turn text into natural speech, transcribe recordings, clone voices and localize a voice into other languages from chat, for course narration, audio content and voiceovers. Hosted; sign in with your Cartesia account in the browser. Free tier available.

Free SEO plugin from SearchFit.ai: site SEO audits, technical SEO and broken link checks, content planning and writing briefs, keyword clustering, structured data generation, multilingual localization and AI search visibility analysis. No account needed; just give it a URL or your site's source.

Reviews, rewrites, generates or harmonizes interface copy inside a Figma file, covering buttons, forms, errors, empty states, onboarding, confirmations and consent; edits only the selection, preserves components and Auto Layout, and never invents product facts.

Official MCP for LibreTranslate, the open-source machine translation engine: translate text, detect languages and list supported languages. Use libretranslate.com (paid API key) or your own free self-hosted instance so text never leaves your machine or network. Needs Node.js.

Mintlify's official plugin: reference for Mintlify components, docs.json config, navigation and API docs, plus Mintlify docs search and site management, for building and updating product docs and help centers. Needs a Mintlify docs project; management needs browser sign-in.

DeepL's official Claude Code plugin: uses DeepL's hosted service to translate text and Word, PowerPoint, Excel and PDF files with formatting intact, rephrase and polish, fix grammar and apply glossaries. Needs an eligible DeepL subscription; browser sign-in on first use.

Pendo's official product analytics plugin: summarize account activity and feedback before customer meetings, analyze feature adoption, group user feedback into themes and find session replays. Needs a Pendo subscription; authorize via /mcp after install.

Phrase's official plugin for localization managers and reviewers: splits a mixed style guide into separate guides by content type, audience and more, with terminology pulled out on its own; also generates .phrase.yml config for the Phrase CLI for dev teams. Syncing strings needs a Phrase account.

Windsor.ai's official plugin: connects ad accounts on Google, Meta, TikTok and more plus 350+ data sources such as GA4 and CRMs for quick cross-channel performance reports and wasted-spend detection; asks before changing budgets or pausing ads. Needs a Windsor.ai account with data sources connected.