anki anki-connect gpl license japanese python yomichan

The AnkiConnect plugin enables external applications such as Yomichan to communicate with Anki over a network interface. This software makes it possible to execute queries against the user’s card deck, automatically create new vocabulary and Kanji flash cards, and more. AnkiConnect is compatible with the latest stable (2.0.x) and alpha (2.1.x) releases of Anki and works on Linux, Windows, and Mac OS X.

Table of Contents


The installation process is similar to that of other Anki plugins and can be accomplished in three steps:

  1. Open the Install Add-on dialog by selecting Tools > Add-ons > Browse & Install in Anki.
  2. Input 2055492159 into the text box labeled Code and press the OK button to proceed.
  3. Restart Anki when prompted to do so in order to complete the installation of AnkiConnect.

Anki must be kept running in the background in order for other applications to be able to use AnkiConnect. You can verify that AnkiConnect is running at any time by accessing localhost:8765 in your browser. If the server is running, you should see the message AnkiConnect v.6 displayed in your browser window.

Notes for Windows Users

Windows users may see a firewall nag dialog box appear on Anki startup. This occurs because AnkiConnect hosts a local server in order to enable other applications to connect to it. The host application, Anki, must be unblocked for this plugin to function correctly.

Notes for Mac OS X Users

Starting with Mac OS X Mavericks, a feature named App Nap has been introduced to the operating system. This feature causes certain applications which are open (but not visible) to be placed in a suspended state. As this behavior causes AnkiConnect to stop working while you have another window in the foreground, App Nap should be disabled for Anki:

  1. Start the Terminal application.
  2. Execute the following commands in the terminal window:

    defaults write net.ichi2.anki NSAppSleepDisabled -bool true
    defaults write org.qt-project.Qt.QtWebEngineCore NSAppSleepDisabled -bool true
  3. Restart Anki.

Application Interface for Developers

AnkiConnect exposes Anki features to external applications via an easy to use RESTful API. After it is installed, this plugin will initialize a minimal HTTP sever running on port 8765 every time Anki executes. Other applications (including browser extensions) can then communicate with it via HTTP POST requests.

By default, AnkiConnect will only bind the HTTP server to the IP address, so that you will only be able to access it from the same host on which it is running. If you need to access it over a network, you can set the environment variable ANKICONNECT_BIND_ADDRESS to change the binding address. For example, you can set it to in order to bind it to all network interfaces on your host.

Sample Invocation

Every request consists of a JSON-encoded object containing an action, a version, and a set of contextual params. A simple example of a modern JavaScript application communicating with the extension is illustrated below:

function ankiConnectInvoke(action, version, params={}) {
    return new Promise((resolve, reject) => {
        const xhr = new XMLHttpRequest();
        xhr.addEventListener('error', () => reject('failed to connect to AnkiConnect'));
        xhr.addEventListener('load', () => {
            try {
                const response = JSON.parse(xhr.responseText);
                if (response.error) {
                    throw response.error;
                } else {
                    if (response.hasOwnProperty('result')) {
                    } else {
                        reject('failed to get results from AnkiConnect');
            } catch (e) {
        });'POST', '');
        xhr.send(JSON.stringify({action, version, params}));

try {
    const result = await ankiConnectInvoke('deckNames', 6);
    console.log(`got list of decks: ${result}`);
} catch (e) {
    console.log(`error getting decks: ${e}`);

Or using curl from the command line:

curl localhost:8765 -X POST -d "{\"action\": \"deckNames\", \"version\": 6}"

AnkiConnect will respond with an object containing two fields: result and error. The result field contains the return value of the executed API, and the error field is a description of any exception thrown during API execution (the value null is used if execution completed successfully).

Sample successful response:

{"result": ["Default", "Filtered Deck 1"], "error": null}

Samples of failed responses:

{"result": null, "error": "unsupported action"}
{"result": null, "error": "guiBrowse() got an unexpected keyword argument 'foobar'"}

For compatibility with clients designed to work with older versions of AnkiConnect, failing to provide a version field in the request will make the version default to 4. Furthermore, when the provided version is level 4 or below, the API response will only contain the value of the result; no error field is available for error handling.

Supported Actions

Below is a comprehensive list of currently supported actions. Note that deprecated APIs will continue to function despite not being listed on this page as long as your request is labeled with a version number corresponding to when the API was available for use.

This page currently documents version 6 of the API. Make sure to include this version number in your requests to guarantee that your application continues to function properly in the future.









This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see