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    Save in 1Password Button API

    Save in 1Password brand artwork

    When you add the Save in 1Password button to your website, visitors can easily save their sign-in details, credit cards, or addresses to their 1Password account with a click. If you set up an integration with 1Password, the button can also be used to save API keys.

    The Save in 1Password button on your site communicates directly with 1Password in the browser, so no unencrypted information leaves the customer's browser.

    Step 1: Add the button to your site

    To add the button to your site, you'll need to install the Save in 1Password button, build a save request, and import the button into your file with the required attributes and values. The button is disabled by default. When the page loads, 1Password will check for the button and make it available to the user. Item URLs, if applicable, are determined by 1Password, so a login item can only be filled for the domain on which it was saved.

    The button element specifies the type of item to create and the information it'll contain. The information is a Base64-encoded save request in JSON format.

    1.1 Install the button

    To get started, install the Save in 1Password button using your preferred package manager:


    npm install @1password/save-button --save-dev


    yarn add @1password/save-button -D

    Then import the package into your HTML file. For example:

    <script type="module">
      import "@1password/save-button/index.js";

    1.2 Build a save request

    The save request needs these values:

    Field Type Description
    title string The suggested title for the item to be saved.
    fields array Each object in the array has these properties:
    • autocomplete (string): The type of field to fill.
    • value (string): The value to be filled in the field.

    Use the autocomplete field name and values defined in the "Autofill" section of the HTML Living Standard.



    string Notes to save with the item. These can be formatted with Markdown.

    For example:

    const saveRequest = {
      title: "ACME Credit Card",
      fields: [
          autocomplete: "cc-name",
          value: "Wendy J. Appleseed",
          autocomplete: "cc-number",
          value: "4111111111111111",
          autocomplete: "cc-exp",
          value: "202512",
          autocomplete: "cc-csc",
          value: "123",
          autocomplete: "cc-type",
          value: "visa",
          autocomplete: "street-address",
          value: "512 Main Street",
          autocomplete: "address-level2",
          value: "Cambridge",
          autocomplete: "address-level1",
          value: "MA",
          autocomplete: "postal-code",
          value: "12345",
          autocomplete: "country",
          value: "US",
        "Plain text. You can use [Markdown]( too.",

    To encode the example above to a Base64 string in JSON format, use the built-in encodeOPSaveRequest function:

    const encodedSaveRequest = encodeOPSaveRequest(saveRequest);

    Then copy and paste the resulting Base64-encoded string as the value attribute of the Save in 1Password button. For example:


    Or update the Base64-encoded value of the button:

      .setAttribute("value", encodedSaveRequest);

    1.3 Add the button to your page

    Add the Save in 1Password button to your page with the two required attributes: data-onepassword-type and value.

    You can also add optional attributes to change the button language, color, theme, or padding: lang, class, data-theme, or padding.

    Attribute Value
    data-onepassword-type The type of item the button will create:
    credit-card, api-key, or login
    value The Base64-encoded save request.


    The language code for one of the supported languages.

    If no language attribute is provided, the package will determine the browser language using the NavigatorLanguage Web API. If the browser language isn’t supported, the package will default to English.



    The color of the button:
    black or white

    If no class attribute is provided, the button color will default to blue.



    The optimized button theme for a website with a light or dark background:
    light or dark

    If no theme is provided the package will default to the light theme.



    Controls the padding of the button:
    normal or compact or none

    If no value is provided or a value of normal is provided, the button padding will default to 24 pixels.
    If a value of compact is provided, the padding will be 16px.
    If a value of none is provided, the padding will be 0px.

    For example:


    If you're building a single-page app, you may need to call the activateOPButton() function to activate the button. This will dispatch a custom event on the page to tell 1Password to enable the Save in 1Password button.

    Step 2: Request to be added to the list of allowed sites

    The Save in 1Password button only works on sites approved by 1Password. To request that your site be added to the list or for more information about the Save in 1Password button, contact the 1Password Partnerships team at

    Appendix: Supported language codes

    Language Code Language Code Language Code
    English en Japanese ja Spanish es
    French fr Korean ko Chinese, simplified zh-CN
    German de Portuguese pt Chinese, traditional zh-TW
    Italian it Russian ru




    npm i @1password/save-button

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