Katana — Japan Stock Screener

Screen every listed company in Japan by financials, custom formulas, and annual report text.

View on katanascreener.com

Hosted MCP Server

npx add-mcp 'https://mcp.katanascreener.com/mcp'

Installs into Claude Code, Codex, Cursor and more

Documentation

Server URL (works with assistants other than Claude and ChatGPT too)

https://mcp.katanascreener.com/mcp

From the Claude directory

  1. Open Katana's page in the Claude directory
  2. Click Connect to Claude
  3. Katana's sign-in page opens; sign in with your Katana account and click Allow
  4. Turn on the Katana connector from "+" in a conversation In a conversation, open + → Connectors and switch on Katana
  5. Type what you are looking for in a company, in your own words Claude's message box with a question about companies whose profits grow most from interest income when rates rise

If that does not work for you, you can also connect this way.

By entering the URL

  1. Open Claude
  2. Settings → Connectors → Add → Add custom connector Claude's settings, with Connectors on the left and Add at the top right
  3. Enter "Katana" as the name and the URL above, then Continue The Add custom connector dialog with the name and URL filled in, then Continue
  4. Leave the authentication settings as they are and continue The authentication settings, with Sign in now selected
  5. Click Connect. If Claude asks you to confirm the connection, continue The Connect button for the Katana connector
  6. Katana's sign-in page opens; sign in with your Katana account and click Allow Katana's sign-in page for connecting an AI assistant
  7. Turn on the Katana connector from "+" in a conversation In a conversation, open + → Connectors and switch on Katana
  8. Type what you are looking for in a company, in your own words Claude's message box with a question about companies whose profits grow most from interest income when rates rise

In Claude Code (CLI), add it with the command below, then choose Katana in /mcp to sign in.

claude mcp add --transport http katana https://mcp.katanascreener.com/mcp
  1. Open the Plugins page in ChatGPT
  2. Add (top right) → Add custom MCP server ChatGPT's Plugins page, with Add → Add custom MCP server at the top right
  3. Enter "Katana" as the name and the URL above, check "I understand and want to continue", then click Create as a plugin The Add custom MCP server dialog with the name and URL filled in, the checkbox checked, then Create as a plugin
  4. Click the connect button. Katana's sign-in page opens; sign in with your Katana account and click Allow The connect button on ChatGPT's connection screen for Katana
  5. In a new conversation, choose Katana from "+" (or type @) Katana in the + menu of a conversation
  6. Type what you are looking for in a company, in your own words The message box with Katana attached and a question about companies whose profits grow most from interest income when rates rise