Read Frog

Read Frog is a language-learning system: a browser extension that translates what you read, plus a web app where the words and sentences you save become flashcards you review with FSRS spaced repetition. This connector lets Claude work directly with the study side of your Read Frog account.

What Claude can do with it:

• Capture: save a word or phrase from the conversation, or turn an article or PDF you share into structured notes, written into the notebase you choose with the fields it already uses.
• Organize: create notebases and fields, find notes, backfill missing examples, part of speech or phonetics, and clean up field configuration.
• Build cards: read the card template guide, preview a template on a real note, then create or fix the front and back layouts that turn notes into cards.
• Study: check what is due today, browse rendered cards, run a quick quiz in the conversation and record each rating, undo a misgraded review, suspend or bury a card, and look back over your review history.

How it works: you sign in on Read Frog's own consent page and grant five permission groups separately (account, notebases, notes, card templates, study), each at no access, read, or read and write. Read-only access is enough for lookups and progress reports. Read Frog never asks for your password inside Claude, and you can revoke the connection at any time from the MCP page in the Read Frog web app.

Read Frog only stores what Claude saves. It does not fetch web pages or files and does not see your conversation. Every Read Frog plan can connect: Free accounts get 10 tool calls a day, Pro 50, and Ultra has no limit.