How to integrate WaniKani MCP with Hermes

Hermes is a 24/7 autonomous agent that lives on your computer or server — it remembers what it learns and evolves as your usage grows. This guide explains the easiest and most robust way to connect your WaniKani account to Hermes. You can do this through either Composio Connect CLI or Composio Connect MCP. For personal use we recommend the CLI, but you won't go wrong with MCP either.

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WaniKani is a spaced-repetition platform for learning Japanese radicals, kanji, and vocabulary. It helps learners build long-term retention with structured lessons, reviews, and progress tracking.

16 Tools

Introduction

Hermes is a 24/7 autonomous agent that lives on your computer or server — it remembers what it learns and evolves as your usage grows.

This guide explains the easiest and most robust way to connect your WaniKani account to Hermes. You can do this through either Composio Connect CLI or Composio Connect MCP. For personal use we recommend the CLI, but you won't go wrong with MCP either.

Also integrate WaniKani with

What is Composio Connect?

Composio Connect is a consumer offering that lets anyone plug 1,000+ applications directly into their agent harness — including Hermes. It can:

  • Search and load tools from relevant toolkits on-demand, reducing context usage.
  • Chain multiple tools to accomplish complex workflows via a remote workbench, without excessive back-and-forth with the LLM.
  • Manage app authentication end-to-end with zero manual overhead.

Integrating WaniKani with Hermes

Using Composio Connect CLI

1. Install the Composio CLI

Run the install script directly, or paste https://composio.dev/hermes into your Hermes chat box to have it installed for you.

bash
curl -fsSL https://composio.dev/install | bash
Hermes authenticating with Composio

2. Authenticate

Once the CLI is installed, ask Hermes to authenticate with Composio.

3. Connect to WaniKani

Ask your agent to connect to WaniKani, or simply request any WaniKani-related task. Hermes will prompt you to authenticate and authorize access.

4. Done. You're all set with a new WaniKani connection.


Using Composio Connect MCP

1. Get your MCP URL and API Key

Go to dashboard.composio.dev and copy your Connect MCP URL and API key.

Copy MCP URL and API key from Composio dashboard

2. Open the Hermes config file

bash
nano ~/.hermes/config.yaml

3. Add the Composio Connect MCP server

bash
mcp_servers:
  composio:
    url: "https://connect.composio.dev/mcp"
    headers:
      x-consumer-api-key: "YOUR_COMPOSIO_API_KEY"
    connect_timeout: 60
    timeout: 180

Save with Ctrl + O, Enter, then exit with Ctrl + X.

4. Restart your Hermes agent

Once restarted, ask your agent to connect to WaniKani or request any WaniKani-related task. It will prompt you to authenticate and authorize access.

5. Done!

What is the WaniKani MCP server, and what's possible with it?

The WaniKani MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your WaniKani account. It provides structured and secure access so your agent can perform WaniKani operations on your behalf.

Way Forward

With WaniKani connected, Hermes can now act on your behalf whenever it detects a relevant task or you ask it to.

From here, you can extend Hermes further:

  • Connect more apps: Calendar, Slack, Notion, Linear, and hundreds of others are available through the same Composio Connect setup. Each new integration compounds what Hermes can do for you.
  • Build workflows across tools: Once multiple apps are connected, Hermes can chain actions together — turn an email into a calendar invite, a Slack message into a Linear ticket, or a meeting note into a follow-up draft.
  • Let it learn your patterns: The more you use Hermes, the better it gets at anticipating how you'd handle recurring tasks. Give it feedback on drafts and decisions, and it will adapt.

If you run into trouble or want to share what you've built, join the community or check out the Docs for deeper configuration options.

TOOLS

Supported Tools

Every WaniKani action and event your agent gets out of the box.

Create Study Material

Create the sole study-material record for a subject, optionally with notes or meaning synonyms.

Get Assignments

Retrieve one assignment by ID, or list the connected user's assignments using progress, availability, level, subject, and update filters.

Get Level Progressions

Retrieve one level-progression record by ID, or list the user's level history with ID and update-time filters.

Get Resets

Retrieve one account-reset record by ID, or list account level-reset history.

Get Reviews

Retrieve one completed review by ID, or list completed reviews filtered by review IDs, subject IDs, or update time.

Get Review Statistics

Retrieve one per-subject review statistic by ID, or list answer totals, streaks, and accuracy using subject and percentage filters.

Get Spaced Repetition Systems

Retrieve one spaced-repetition system by ID, or list SRS definitions and their stage intervals.

Get Study Materials

Retrieve one study-material record by ID, or list the user's subject notes and meaning synonyms with subject and update filters.

Get Study Summary

Get lessons available now and review availability over the next 24 hours for the connected user.

Get Subjects

Retrieve one WaniKani subject by ID, or search radicals, kanji, vocabulary, and kana vocabulary by IDs, types, slugs, levels, visibility, or update time.

Get User

Get the connected user's identity, level, subscription status, vacation state, and application preferences.

Get Voice Actors

Retrieve one WaniKani pronunciation voice actor by ID, or list voice actors with ID and update-time filters.

Start Assignment

Irreversibly mark one unlocked lesson assignment as started and move it into reviews.

Submit Review

Irreversibly submit a completed review, changing assignment progress and review statistics.

Update Study Material

Update at least one note or meaning-synonym field on an existing study-material record without changing its subject.

Update User Preferences

Update one or more supported WaniKani lesson or review preferences.

FAQ

Frequently asked questions

With a standalone WaniKani MCP server, the agents and LLMs can only access a fixed set of WaniKani tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from WaniKani and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Hermes fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right WaniKani tools.

Yes, absolutely. You can configure which WaniKani scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your WaniKani data and credentials are handled as safely as possible.

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