"Methods to Test API Endpoints" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Bring Letterly voice notes and meetings into your AI chat to search, rewrite, translate, and more.
MamuteCloud via OAuth: CDN, SSL, DNS, storage, apps, transcription, translation and billing.
Add burned-in captions to any video in one call: 28 caption styles, transcription, translation, dubbing, silence trimming and AI shorts. REST + MCP, prepaid credits (1 credit = 1 cent), free tools work without a key.
Transcribe audio and video to text, SRT or VTT. Summaries, translation. Optional OAuth sign-in.
Connects an AI assistant to your Lingard account (lingard.app), an app for learning languages with books, news and flashcards. Create topic word collections and add complete cards: translation, part of speech, pronunciation, synonyms, example sentences with translations, and images. Fill in missing fields on existing cards, rewrite example translations, and pause or resume collections, books and news in your daily study sessions. Every change can be previewed before it is saved, and saved words appear in the Lingard apps on iOS, Android and the web. Requires a Lingard account; sign-in uses OAuth.
25 tools: LLM chat, summaries, translation, embeddings, speech, images. 25 free calls.
Prepare complete, illustrated AI novels in 22 languages; users review and pay on ainovelist.app.
CV & resume builder: country formats in 14 languages, ATS checks, cover letters, job tracker.
Connect AI assistants to Tutorial AI to work on your tutorial projects. Read and rewrite scripts, edit slides, translate projects, add comments, and render or publish videos. Connect with OAuth using your own Tutorial AI account; access follows your existing account permissions. Documentation: https://www.tutorial.ai/en/articles/connect-your-ai-assistant
Read-only HSK vocabulary, graded Chinese readings and an HSK level estimate for any Chinese text. Six tools, no API key needed.
Lexpad is a vocabulary notebook with spaced repetition, in 81 languages. Connect it to ChatGPT or Claude and ask the assistant to save a word from your chat, show the words due today or quiz you. Each answer counts as practice and moves the word through its Leitner boxes. Sign-in is OAuth 2.1 with PKCE on a Lexpad page. 20 tools; the ones that overwrite or delete are marked, so the client asks first. Connecting is free. On Lexpad's Free plan the assistant writes 10 cards a day; on Pro it is unlimited, up to 1,000 a day. Guide and example prompts: https://lexpad.app/features/assistants
Localize apps from your AI assistant: translate locale files, set glossaries, connect GitHub repos.
Create and edit saved resumes, make tailored or translated copies, and export PDF or Word.
Find interpreters, quote per-minute prices and get start links on Remoto by ProZ.
LibreTranslate MCP — open-source machine translation (BYO endpoint)
Learn vocabulary from daily life with flashcards, examples, pronunciation and shareable study links.
Plant and flower care for 202 species in ten languages, with source links and editorial status.
Jisho.org Japanese-English dictionary MCP (keyless).
English→Japanese document translation with a certificate. No API key, free quote, fixed ¥980–5,980
European data products with cited sources. Annual bulk access: not open for online purchase yet.
Korean name/text romanization, Korean address to English, business number (BRN) check.
Dictionary MCP — wraps Free Dictionary API (free, no auth)
MyMemory MCP — keyless machine + translation-memory translation.
15 tools, 38 languages, 8 AIs. Apple-approved 3-day Pro trial; subscription renews, no free Sends.
Translate MCP — LibreTranslate-compatible machine translation.
DWDS MCP — German Digital Dictionary.
Study decks for 8 languages plus the K2 spaced-repetition engine, runnable on your items.
Pay-per-call APIs for agents: text analysis, game facts, translation QA, hook scoring via x402.
