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<header><h1>Langflow CLI</h1></header>
<p>The Langflow command line interface (Langflow CLI) is the main interface for managing and running the Langflow server.</p>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="cli-commands">CLI commands<a href="#cli-commands" class="hash-link" aria-label="Direct link to CLI commands" title="Direct link to CLI commands">​</a></h2>
<p>The following sections describe the available CLI commands and their options, as well as their corresponding <a href="/environment-variables">environment variables</a>.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="langflow">langflow<a href="#langflow" class="hash-link" aria-label="Direct link to langflow" title="Direct link to langflow">​</a></h3>
<p>Running the CLI without any arguments displays a list of available options and commands.</p>
<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>langflow [OPTIONS]</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span># or</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>python -m langflow [OPTIONS]</span></div></div><br></code></div></div>
<h4 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="options">Options<a href="#options" class="hash-link" aria-label="Direct link to Options" title="Direct link to Options">​</a></h4>
<table><thead><tr><th>Option</th><th>Default</th><th>Values</th><th>Description</th></tr></thead><tbody><tr><td><a id="install-completion"></a><code>--install-completion</code></td><td><em>Not applicable</em></td><td><em>Not applicable</em></td><td>Install auto-completion for the current shell.</td></tr><tr><td><a id="show-completion"></a><code>--show-completion</code></td><td><em>Not applicable</em></td><td><em>Not applicable</em></td><td>Show the location of the auto-completion config file, if installed.</td></tr><tr><td><a id="help"></a><code>--help</code></td><td><em>Not applicable</em></td><td><em>Not applicable</em></td><td>Display information about the command usage and its options and arguments.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="langflow-api-key">langflow api-key<a href="#langflow-api-key" class="hash-link" aria-label="Direct link to langflow api-key" title="Direct link to langflow api-key">​</a></h3>
<p>To create API keys with the Langflow CLI, <code>AUTO_LOGIN</code> must be set to <code>TRUE</code>, or you must be logged in as a superuser.</p>
<ul>
<li>If <code>AUTO_LOGIN</code> is <code>FALSE</code>, you must be logged in as a superuser.</li>
<li>If <code>AUTO LOGIN</code> is <code>TRUE</code>, you&#x27;re already logged in as superuser.</li>
</ul>
<p>For more information, see <a href="/configuration-api-keys">API keys</a>.</p>
<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>langflow api-key [OPTIONS]</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span># or</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>uv run langflow api-key [OPTIONS]</span></div></div><br></code></div></div>
<h4 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="options-1">Options<a href="#options-1" class="hash-link" aria-label="Direct link to Options" title="Direct link to Options">​</a></h4>
<table><thead><tr><th>Option</th><th>Default</th><th>Values</th><th>Description</th></tr></thead><tbody><tr><td><a id="install-completion"></a><code>--install-completion</code></td><td><em>Not applicable</em></td><td><em>Not applicable</em></td><td>Install auto-completion for the current shell.</td></tr><tr><td><a id="show-completion"></a><code>--show-completion</code></td><td><em>Not applicable</em></td><td><em>Not applicable</em></td><td>Show the location of the auto-completion config file (if installed).</td></tr><tr><td><a id="help"></a><code>--help</code></td><td><em>Not applicable</em></td><td><em>Not applicable</em></td><td>Display information about the command usage and its options and arguments.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="langflow-copy-db">langflow copy-db<a href="#langflow-copy-db" class="hash-link" aria-label="Direct link to langflow copy-db" title="Direct link to langflow copy-db">​</a></h3>
<p>Copy the database files to the current directory.
Copy the Langflow database files, <code>langflow.db</code> and <code>langflow-pre.db</code> (if they exist), from the cache directory to the current directory.</p>
<div class="theme-admonition theme-admonition-note admonition_xJq3 alert alert--secondary"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M6.3 5.69a.942.942 0 0 1-.28-.7c0-.28.09-.52.28-.7.19-.18.42-.28.7-.28.28 0 .52.09.7.28.18.19.28.42.28.7 0 .28-.09.52-.28.7a1 1 0 0 1-.7.3c-.28 0-.52-.11-.7-.3zM8 7.99c-.02-.25-.11-.48-.31-.69-.2-.19-.42-.3-.69-.31H6c-.27.02-.48.13-.69.31-.2.2-.3.44-.31.69h1v3c.02.27.11.5.31.69.2.2.42.31.69.31h1c.27 0 .48-.11.69-.31.2-.19.3-.42.31-.69H8V7.98v.01zM7 2.3c-3.14 0-5.7 2.54-5.7 5.68 0 3.14 2.56 5.7 5.7 5.7s5.7-2.55 5.7-5.7c0-3.15-2.56-5.69-5.7-5.69v.01zM7 .98c3.86 0 7 3.14 7 7s-3.14 7-7 7-7-3.12-7-7 3.14-7 7-7z"></path></svg></span>note</div><div class="admonitionContent_BuS1"><p>The current directory is the directory containing <code>__main__.py</code>.
You can find this directory by running <code>which langflow</code>.</p></div></div>
<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>langflow copy-db</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span># or</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>python -m langflow copy-db</span></div></div><br></code></div></div>
<h4 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="options-2">Options<a href="#options-2" class="hash-link" aria-label="Direct link to Options" title="Direct link to Options">​</a></h4>
<table><thead><tr><th>Option</th><th>Default</th><th>Values</th><th>Description</th></tr></thead><tbody><tr><td><a id="copy-db-help"></a><code>--help</code></td><td><em>Not applicable</em></td><td><em>Not applicable</em></td><td>Display information about the command usage and its options and arguments.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="langflow-migration">langflow migration<a href="#langflow-migration" class="hash-link" aria-label="Direct link to langflow migration" title="Direct link to langflow migration">​</a></h3>
<p>Run or test database migrations.</p>
<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>langflow migration [OPTIONS]</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span># or</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>python -m langflow migration [OPTIONS]</span></div></div><br></code></div></div>
<h4 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="options-3">Options<a href="#options-3" class="hash-link" aria-label="Direct link to Options" title="Direct link to Options">​</a></h4>
<table><thead><tr><th>Option</th><th>Default</th><th>Values</th><th>Description</th></tr></thead><tbody><tr><td><a id="migration-test"></a><code>--test</code></td><td><code>true</code></td><td>Boolean</td><td>Run migrations in test mode. Use <code>--no-test</code> to disable test mode.</td></tr><tr><td><a id="migration-fix"></a><code>--fix</code></td><td><code>false</code> (<code>--no-fix</code>)</td><td>Boolean</td><td>Fix migrations. This is a destructive operation, and all affected data will be deleted. Only use this option if you know what you are doing.</td></tr><tr><td><a id="migration-help"></a><code>--help</code></td><td><em>Not applicable</em></td><td><em>Not applicable</em></td><td>Display information about the command usage and its options and arguments.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="langflow-run">langflow run<a href="#langflow-run" class="hash-link" aria-label="Direct link to langflow run" title="Direct link to langflow run">​</a></h3>
<p>Start the Langflow server.</p>
<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>langflow run [OPTIONS]</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span># or</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>python -m langflow run [OPTIONS]</span></div></div><br></code></div></div>
<h4 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="options-4">Options<a href="#options-4" class="hash-link" aria-label="Direct link to Options" title="Direct link to Options">​</a></h4>
<table><thead><tr><th>Option</th><th>Default</th><th>Values</th><th>Description</th></tr></thead><tbody><tr><td><a id="run-host"></a><code>--host</code></td><td><code>localhost</code></td><td>String</td><td>The host on which the Langflow server will run.<br>See <a href="/environment-variables#LANGFLOW_HOST"><code>LANGFLOW_HOST</code> variable</a>.</td></tr><tr><td><a id="run-workers"></a><code>--workers</code></td><td><code>1</code></td><td>Integer</td><td>Number of worker processes.<br>See <a href="/environment-variables#LANGFLOW_WORKERS"><code>LANGFLOW_WORKERS</code> variable</a>.</td></tr><tr><td><a id="run-worker-timeout"></a><code>--worker-timeout</code></td><td><code>300</code></td><td>Integer</td><td>Worker timeout in seconds.<br>See <a href="/environment-variables#LANGFLOW_WORKER_TIMEOUT"><code>LANGFLOW_WORKER_TIMEOUT</code> variable</a>.</td></tr><tr><td><a id="run-port"></a><code>--port</code></td><td><code>7860</code></td><td>Integer</td><td>The port on which the Langflow server will run. The server automatically selects a free port if the specified port is in use.<br>See <a href="/environment-variables#LANGFLOW_PORT"><code>LANGFLOW_PORT</code> variable</a>.</td></tr><tr><td><a id="run-components-path"></a><code>--components-path</code></td><td><code>langflow/components</code></td><td>String</td><td>Path to the directory containing custom components.<br>See <a href="/environment-variables#LANGFLOW_COMPONENTS_PATH"><code>LANGFLOW_COMPONENTS_PATH</code> variable</a>.</td></tr><tr><td><a id="run-env-file"></a><code>--env-file</code></td><td>Not set</td><td>String</td><td>Path to the <code>.env</code> file containing environment variables.<br>See <a href="/environment-variables#configure-variables-env-file">Import environment variables from a .env file</a>.</td></tr><tr><td><a id="run-log-level"></a><code>--log-level</code></td><td><code>critical</code></td><td><code>debug</code><br><code>info</code><br><code>warning</code><br><code>error</code><br><code>critical</code></td><td>Set the logging level.<br>See <a href="/environment-variables#LANGFLOW_LOG_LEVEL"><code>LANGFLOW_LOG_LEVEL</code> variable</a>.</td></tr><tr><td><a id="run-log-file"></a><code>--log-file</code></td><td><code>logs/langflow.log</code></td><td>String</td><td>Set the path to the log file for Langflow.<br>See <a href="/environment-variables#LANGFLOW_LOG_FILE"><code>LANGFLOW_LOG_FILE</code> variable</a>.</td></tr><tr><td><a id="run-cache"></a><code>--cache</code></td><td><code>async</code></td><td><code>async</code><br><code>redis</code><br><code>memory</code><br><code>disk</code></td><td>Type of cache to use.<br>See <a href="/environment-variables#LANGFLOW_CACHE_TYPE"><code>LANGFLOW_CACHE_TYPE</code> variable</a>.</td></tr><tr><td><a id="run-frontend-path"></a><code>--frontend-path</code></td><td><code>./frontend</code></td><td>String</td><td>Path to the frontend directory containing build files. This is for development purposes only.<br>See <a href="/environment-variables#LANGFLOW_FRONTEND_PATH"><code>LANGFLOW_FRONTEND_PATH</code> variable</a>.</td></tr><tr><td><a id="run-open-browser"></a><code>--open-browser</code></td><td><code>true</code></td><td>Boolean</td><td>Open the system web browser on startup. Use <code>--no-open-browser</code> to disable opening the system web browser on startup.<br> See <a href="/environment-variables#LANGFLOW_OPEN_BROWSER"><code>LANGFLOW_OPEN_BROWSER</code> variable</a>.</td></tr><tr><td><a id="run-remove-api-keys"></a><code>--remove-api-keys</code></td><td><code>false</code> (<code>--no-remove-api-keys</code>)</td><td>Boolean</td><td>Remove API keys from the projects saved in the database.<br> See <a href="/environment-variables#LANGFLOW_REMOVE_API_KEYS"><code>LANGFLOW_REMOVE_API_KEYS</code> variable</a>.</td></tr><tr><td><a id="run-backend-only"></a><code>--backend-only</code></td><td><code>false</code> (<code>--no-backend-only</code>)</td><td>Boolean</td><td>Only run Langflow&#x27;s backend server (no frontend).<br>See <a href="/environment-variables#LANGFLOW_BACKEND_ONLY"><code>LANGFLOW_BACKEND_ONLY</code> variable</a>.</td></tr><tr><td><a id="run-store"></a><code>--store</code></td><td><code>true</code></td><td>Boolean</td><td>Enable the Langflow Store features. Use <code>--no-store</code> to disable the Langflow Store features.<br>See <a href="/environment-variables#LANGFLOW_STORE"><code>LANGFLOW_STORE</code> variable</a>.</td></tr><tr><td><a id="run-auto-saving"></a><code>--auto-saving</code></td><td><code>true</code></td><td>Boolean</td><td>Enable flow auto-saving. Use <code>--no-auto-saving</code> to disable flow auto-saving.<br>See <a href="/environment-variables#LANGFLOW_AUTO_SAVING"><code>LANGFLOW_AUTO_SAVING</code> variable</a>.</td></tr><tr><td><a id="run-auto-saving-interval"></a><code>--auto-saving-interval</code></td><td><code>1000</code></td><td>Integer</td><td>Set the interval for flow auto-saving in milliseconds.<br>See <a href="/environment-variables#LANGFLOW_AUTO_SAVING_INTERVAL"><code>LANGFLOW_AUTO_SAVING_INTERVAL</code> variable</a>.</td></tr><tr><td><a id="run-health-check-max-retries"></a><code>--health-check-max-retries</code></td><td><code>5</code></td><td>Integer</td><td>Set the maximum number of retries for the health check. Use <code>--no-health-check-max-retries</code> to disable the maximum number of retries for the health check.<br>See <a href="/environment-variables#LANGFLOW_HEALTH_CHECK_MAX_RETRIES"><code>LANGFLOW_HEALTH_CHECK_MAX_RETRIES</code> variable</a>.</td></tr><tr><td><a id="run-max-file-size-upload"></a><code>--max-file-size-upload</code></td><td><code>100</code></td><td>Integer</td><td>Set the maximum file size for the upload in megabytes.<br>See <a href="/environment-variables#LANGFLOW_MAX_FILE_SIZE_UPLOAD"><code>LANGFLOW_MAX_FILE_SIZE_UPLOAD</code> variable</a>.</td></tr><tr><td><a id="run-ssl-cert-file-path"></a><code>--ssl-cert-file-path</code></td><td>Not set</td><td>String</td><td>Path to the SSL certificate file on the local system.</td></tr><tr><td><a id="run-ssl-key-file-path"></a><code>--ssl-key-file-path</code></td><td>Not set</td><td>String</td><td>Path to the SSL key file on the local system.</td></tr><tr><td><a id="run-help"></a><code>--help</code></td><td><em>Not applicable</em></td><td><em>Not applicable</em></td><td>Display information about the command usage and its options and arguments.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="langflow-superuser">langflow superuser<a href="#langflow-superuser" class="hash-link" aria-label="Direct link to langflow superuser" title="Direct link to langflow superuser">​</a></h3>
<p>Create a superuser account.</p>
<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>langflow superuser [OPTIONS]</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span># or</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>python -m langflow superuser [OPTIONS]</span></div></div><br></code></div></div>
<h4 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="options-5">Options<a href="#options-5" class="hash-link" aria-label="Direct link to Options" title="Direct link to Options">​</a></h4>
<table><thead><tr><th>Option</th><th>Default</th><th>Values</th><th>Description</th></tr></thead><tbody><tr><td><a id="superuser-username"></a><code>--username</code></td><td>Required</td><td>String</td><td>Specify the name for the superuser.<br>See <a href="/environment-variables#LANGFLOW_SUPERUSER"><code>LANGFLOW_SUPERUSER</code> variable</a>.</td></tr><tr><td><a id="superuser-password"></a><code>--password</code></td><td>Required</td><td>String</td><td>Specify the password for the superuser.<br>See <a href="/environment-variables#LANGFLOW_SUPERUSER_PASSWORD"><code>LANGFLOW_SUPERUSER_PASSWORD</code> variable</a>.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="precedence">Precedence<a href="#precedence" class="hash-link" aria-label="Direct link to Precedence" title="Direct link to Precedence">​</a></h2>
<p>Langflow CLI options override the values of corresponding <a href="/environment-variables">environment variables</a>.</p>
<p>For example, if you have <code>LANGFLOW_PORT=7860</code> defined as an environment variable, but you run the CLI with <code>--port 7880</code>, Langflow sets the port to <strong><code>7880</code></strong>, the value passed with the CLI.</p>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="assign-values">Assign values<a href="#assign-values" class="hash-link" aria-label="Direct link to Assign values" title="Direct link to Assign values">​</a></h2>
<p>There are two ways you can assign a value to a CLI option.
You can write the option flag and its value with a single space between them: <code>--option value</code>.
Or, you can write them using an equals sign (<code>=</code>) between the option flag and the value: <code>--option=value</code>.</p>
<p>Values that contain spaces must be surrounded by quotation marks: <code>--option &#x27;Value with Spaces&#x27;</code> or <code>--option=&#x27;Value with Spaces&#x27;</code>.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="boolean">Boolean values<a href="#boolean" class="hash-link" aria-label="Direct link to Boolean values" title="Direct link to Boolean values">​</a></h3>
<p>Boolean options turn a behavior on or off, and therefore accept no arguments.
To activate a boolean option, type it on the command line.
For example:</p>
<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>langflow run --remove-api-keys</span></div></div><br></code></div></div>
<p>All boolean options have a corresponding option that negates it.
For example, the negating option for <code>--remove-api-keys</code> is <code>--no-remove-api-keys</code>.
These options let you negate boolean options that you may have set using <a href="/environment-variables">environment variables</a>.</p></div></article><nav class="docusaurus-mt-lg pagination-nav" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/concepts-voice-mode"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Use voice mode</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/deployment-overview"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Langflow deployment overview</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#cli-commands" class="table-of-contents__link toc-highlight">CLI commands</a><ul><li><a href="#langflow" class="table-of-contents__link toc-highlight">langflow</a></li><li><a href="#langflow-api-key" class="table-of-contents__link toc-highlight">langflow api-key</a></li><li><a href="#langflow-copy-db" class="table-of-contents__link toc-highlight">langflow copy-db</a></li><li><a href="#langflow-migration" class="table-of-contents__link toc-highlight">langflow migration</a></li><li><a href="#langflow-run" class="table-of-contents__link toc-highlight">langflow run</a></li><li><a href="#langflow-superuser" class="table-of-contents__link toc-highlight">langflow superuser</a></li></ul></li><li><a href="#precedence" class="table-of-contents__link toc-highlight">Precedence</a></li><li><a href="#assign-values" class="table-of-contents__link toc-highlight">Assign values</a><ul><li><a href="#boolean" class="table-of-contents__link toc-highlight">Boolean values</a></li></ul></li></ul></div></div></div></div></main></div></div></div><footer class="theme-layout-footer footer"><div class="container container-fluid"><div class="row footer__links"><div class="theme-layout-footer-column col footer__col"><div class="footer__title"></div><ul class="footer__items clean-list"><li class="footer__item"><div class="footer-links">
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