Potto Japan is answering right now. Last checked 12 min ago.
Authoritative JLPT-graded Japanese dataset (kanji, vocab, grammar, history) via MCP and REST.
Nothing serious here today
Today is the operative word: we check Potto Japan every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.
claude mcp add potto-japan --transport http https://potto.app/mcphttps://potto.app/mcp[mcp_servers.potto-japan]
url = "https://potto.app/mcp"{
"mcpServers": {
"potto-japan": {
"url": "https://potto.app/mcp"
}
}
}{
"servers": {
"potto-japan": {
"type": "http",
"url": "https://potto.app/mcp"
}
}
}This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://potto.app/mcp | streamable-http | sign-in | 258 ms | 12 min ago |
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Potto Japan — questions
Answers built from our own checks of this server.