How to connect WaniKani to OpenClaw
Connect WaniKani to OpenClaw with ClawLink: paste your WaniKani key once and 16 tools work from chat. No MCP server to run, nothing stored on your machine.
WaniKaniAPI KEYMCPWaniKani is a spaced-repetition learning platform for studying Japanese radicals, kanji, and vocabulary.. Once connected, OpenClaw can read and act on WaniKani from chat — pairing, token refresh, and tool wiring handled for you.
The usual route to WaniKani access for OpenClaw is an MCP server you configure and keep running, plus your own OAuth app or API keys. ClawLink gives OpenClaw a more practical WaniKani setup: install one ClawHub skill, connect WaniKani in the browser, and OpenClaw can call real WaniKani actions from any chat surface with no auth, token refresh, or tool wiring to build yourself.
Setup
It takes three steps to connect OpenClaw to WaniKani.
1Install the plugin
Paste the setup prompt into OpenClaw, or install from the terminal and ask OpenClaw to pair:
openclaw plugins install clawhub:clawlink-plugin- 2
Connect WaniKani
Paste your API key in the dashboard.
- 3
Use it from chat
Ask OpenClaw: "What can you do with WaniKani?"
Install by command
The setup prompt above does all of this in one paste. By hand, it is one install command plus a browser approval:
openclaw plugins install clawhub:clawlink-pluginThen ask OpenClaw to set up ClawLink. It starts browser pairing and prints an approval link — open it, approve the device, return to the chat, and say done. Finally, connect WaniKani in the ClawLink dashboard — paste your WaniKani API key once.
Verify the connection by asking OpenClaw:
Pull the relevant data from WaniKani, summarize it in plain English, and point out anything that needs attention.
Using a different agent?
The OpenClaw plugin is one client of ClawLink's MCP server. Claude Code, Cursor, Codex, or any agent that can run a shell command pairs with the same ClawLink account through the CLI:
npx -y @useclawlink/cli loginlogin opens the same browser approval and stores a credential locally. Once WaniKani is connected in the dashboard, that agent calls the same 16 WaniKani tools over MCP. Full setup for MCP clients and shell agents: connect apps to any AI agent.
WaniKani MCP for OpenClaw
Looking for a WaniKani MCP server for OpenClaw? ClawLink connects WaniKani to OpenClaw and exposes 16 WaniKani tools your agent can call over MCP, with hosted auth and nothing to run or maintain yourself. Using Hermes instead? The Hermes WaniKani integration works the same way.
What the OpenClaw WaniKani integration can do
16 WaniKani tools are ready for OpenClaw once the account is connected.
All 16 WaniKani tools for OpenClaw
| Tool | What it does |
|---|---|
Get assignments wanikani_get_assignments | Retrieve one assignment by ID, or list the connected user's assignments using progress |
Get level progressions wanikani_get_level_progressions | Retrieve one level-progression record by ID, or list the user's level history with ID and |
Get resets wanikani_get_resets | Retrieve one account-reset record by ID, or list account level-reset history |
Get review statistics wanikani_get_review_statistics | Retrieve one per-subject review statistic by ID, or list answer totals, streaks, and accuracy |
Get reviews wanikani_get_reviews | Retrieve one completed review by ID, or list completed reviews filtered by review IDs, subject |
Get spaced repetition systems wanikani_get_spaced_repetition_systems | Retrieve one spaced-repetition system by ID, or list SRS definitions and their stage intervals |
Get study materials wanikani_get_study_materials | Retrieve one study-material record by ID, or list the user's subject notes and meaning synonyms |
Get study summary wanikani_get_study_summary | Get lessons available now and review availability over the next 24 hours for the connected user |
Get subjects wanikani_get_subjects | Retrieve one WaniKani subject by ID, or search radicals, kanji, vocabulary, and kana vocabulary |
Get user wanikani_get_user | Get the connected user's identity, level, subscription status, vacation state, and application |
Get voice actors wanikani_get_voice_actors | Retrieve one WaniKani pronunciation voice actor by ID, or list voice actors with ID and |
Create study material wanikani_create_study_material | Create the sole study-material record for a subject, optionally with notes or meaning synonyms |
Update study material wanikani_update_study_material | Update at least one note or meaning-synonym field on an existing study-material record without |
Update user preferences wanikani_update_user_preferences | Update one or more supported WaniKani lesson or review preferences |
Start assignment wanikani_start_assignment | Irreversibly mark one unlocked lesson assignment as started and move it into reviews |
Submit review wanikani_submit_review | Irreversibly submit a completed review, changing assignment progress and review statistics |
Try it: find the WaniKani tool you need
Browse the 16 WaniKani tools
Click any tool to see exactly what OpenClaw can do and copy a ready-to-use prompt.
Example prompts
Pull the relevant data from WaniKani, summarize it in plain English, and point out anything that needs attention.
Pull the relevant data from WaniKani, summarize it in plain English, and point out anything that needs attention.
Pull the relevant data from WaniKani, summarize it in plain English, and point out anything that needs attention.
Pull the relevant data from WaniKani, summarize it in plain English, and point out anything that needs attention.
ClawLink vs. building it yourself
The alternative to ClawLink is usually manual API key setup plus your own token handling, permission troubleshooting, and tool plumbing for OpenClaw. That is fine if you want to build and maintain the integration yourself. Most teams just want WaniKani working from chat.
| Manual | ClawLink | |
|---|---|---|
| Credential handling | Collect, validate, store, and rotate the WaniKani API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected WaniKani account becomes available to the agent without you building credential management. |
| Ongoing maintenance | You own refresh logic, permission debugging, environment config, and every provider-specific edge case for WaniKani. | ClawLink handles the repetitive integration plumbing so your team can focus on the workflow instead of the infrastructure. |
| Agent usability | You still need to expose the right WaniKani actions to the runtime in a format your agent can reliably use. | 16 tools for WaniKani are already exposed through ClawLink, so the agent can read and act from chat immediately. |
ClawLink vs. Composio
Composio also exposes WaniKani to AI agents. It is developer infrastructure: Python and TypeScript SDKs, an MCP server, and a catalog past 1,000 apps, aimed at teams shipping agent products. ClawLink is built for OpenClaw users instead. You install the plugin once, connect WaniKani in the browser, and the 16 tools above work from chat. There is no SDK and no config file, and the WaniKani key you paste at setup is stored server-side rather than kept in your environment. Choosing between them? Read the full Composio alternatives comparison.
Troubleshooting
OpenClaw installed the WaniKani skill but can't call the tools
The ClawHub skill teaches OpenClaw about WaniKani, but the calls run through the ClawLink plugin and your connected account. Make sure WaniKani is connected in the dashboard, then start a fresh chat so OpenClaw reloads the tool catalog. If OpenClaw runs as a persistent gateway, restart it so the new tools register.
Connection succeeds but no tools appear
Reconnect WaniKani from the dashboard, then start a fresh chat if the runtime still has the old tool catalog loaded.
"Tool schema not loaded yet" error when calling WaniKani tools
WaniKani tool schemas load on demand the first time a tool runs and are cached after that, so this error usually clears on its own: wait a few seconds and retry the same request. If every WaniKani call keeps failing with it in a fresh chat, reconnect from the dashboard, and contact support if it still persists — that pattern points to a configuration problem on our side, not something you can fix by reconnecting again.
WaniKani returns 403 or "permission denied" on one action while others work
Two usual causes. The connected account may not have access to the specific workspace, inbox, store, or project in the request — check that first. If access looks right, the agent may have sent a placeholder value (like "YOUR_ID" or an example id from documentation) instead of a real one: ask it to run a list or search tool first, then retry the action with a real id from those results. Most failures at this stage are one of these two, not ClawLink bugs.
API key setup works but results look incomplete
Double-check that the API key for WaniKani has the right scopes or account access. A valid key can still be too limited for some reads or writes.
FAQ
Is there a OpenClaw WaniKani integration?
Yes. ClawLink is the fastest way to connect OpenClaw to WaniKani: link your WaniKani account once in the browser and OpenClaw can call the WaniKani API through 16 ready-made tools — no custom code or token handling.
How do I add WaniKani to OpenClaw with ClawLink?
Paste the setup prompt from this page into OpenClaw. It installs the ClawLink WaniKani skill from ClawHub, then you click Connect in the dashboard to authorize WaniKani. OpenClaw calls the tools from the next message — no config files, and the WaniKani key you paste is stored server-side instead of in your environment.
How long does it take to connect WaniKani to OpenClaw?
About two minutes. Sign in, click Connect next to WaniKani in the dashboard, authenticate, and OpenClaw can use it from the next chat message.
Why use ClawLink instead of wiring WaniKani up myself?
The alternative to ClawLink is usually manual API key setup plus your own token handling, permission troubleshooting, and tool plumbing for OpenClaw. That is fine if you want to build and maintain the integration yourself. Most teams just want WaniKani working from chat.
OpenClaw installed the WaniKani skill but can't call the tools
The ClawHub skill teaches OpenClaw about WaniKani, but the calls run through the ClawLink plugin and your connected account. Make sure WaniKani is connected in the dashboard, then start a fresh chat so OpenClaw reloads the tool catalog. If OpenClaw runs as a persistent gateway, restart it so the new tools register.
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