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keys</h1></header><style>[data-ch-theme="github-dark"] { --ch-t-colorScheme: dark;--ch-t-foreground: #c9d1d9;--ch-t-background: #0d1117;--ch-t-lighter-inlineBackground: #0d1117e6;--ch-t-editor-background: #0d1117;--ch-t-editor-foreground: #c9d1d9;--ch-t-editor-lineHighlightBackground: #6e76811a;--ch-t-editor-rangeHighlightBackground: #ffffff0b;--ch-t-editor-infoForeground: #3794FF;--ch-t-editor-selectionBackground: #264F78;--ch-t-focusBorder: #1f6feb;--ch-t-tab-activeBackground: #0d1117;--ch-t-tab-activeForeground: #c9d1d9;--ch-t-tab-inactiveBackground: #010409;--ch-t-tab-inactiveForeground: #8b949e;--ch-t-tab-border: #30363d;--ch-t-tab-activeBorder: #0d1117;--ch-t-editorGroup-border: #30363d;--ch-t-editorGroupHeader-tabsBackground: #010409;--ch-t-editorLineNumber-foreground: #6e7681;--ch-t-input-background: #0d1117;--ch-t-input-foreground: #c9d1d9;--ch-t-input-border: #30363d;--ch-t-icon-foreground: #8b949e;--ch-t-sideBar-background: #010409;--ch-t-sideBar-foreground: 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<p>Langflow provides an API key functionality that allows users to access their individual components and flows without traditional login authentication. The API key is a user-specific token that can be included in the request header, query parameter, or as a command line argument to authenticate API calls. This documentation outlines how to generate, use, and manage API keys in Langflow.</p>
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<div class="theme-admonition theme-admonition-info admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>info</div><div class="admonitionContent_BuS1"><p>The default user and password are set using the LANGFLOW_SUPERUSER and LANGFLOW_SUPERUSER_PASSWORD environment variables. The default values are <code>langflow</code> and <code>langflow</code>, respectively.</p></div></div>
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<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="generate-an-api-key">Generate an API key<a href="#generate-an-api-key" class="hash-link" aria-label="Direct link to Generate an API key" title="Direct link to Generate an API key"></a></h2>
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<p>Generate a user-specific token to use with Langflow.</p>
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<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="generate-an-api-key-with-the-langflow-ui">Generate an API key with the Langflow UI<a href="#generate-an-api-key-with-the-langflow-ui" class="hash-link" aria-label="Direct link to Generate an API key with the Langflow UI" title="Direct link to Generate an API key with the Langflow UI"></a></h3>
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<ol>
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<li>Click your user icon and select <strong>Settings</strong>.</li>
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<li>Click <strong>Langflow API</strong>, and then click <strong>Add New</strong>.</li>
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<li>Name your key, and then click <strong>Create Secret Key</strong>.</li>
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<li>Copy the API key and store it in a secure location.</li>
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</ol>
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<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="generate-an-api-key-with-the-langflow-cli">Generate an API key with the Langflow CLI<a href="#generate-an-api-key-with-the-langflow-cli" class="hash-link" aria-label="Direct link to Generate an API key with the Langflow CLI" title="Direct link to Generate an API key with the Langflow CLI"></a></h3>
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||
<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">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span>langflow api-key</span></div></div><div><span class="ch-code-line-number">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span># or</span></div></div><div><span class="ch-code-line-number">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span>python -m langflow api-key</span></div></div><div><span class="ch-code-line-number">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span>╭─────────────────────────────────────────────────────────────────────╮</span></div></div><div><span class="ch-code-line-number">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span>│ API Key Created Successfully: │</span></div></div><div><span class="ch-code-line-number">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span>│ │</span></div></div><div><span class="ch-code-line-number">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span>│ sk-O0elzoWID1izAH8RUKrnnvyyMwIzHi2Wk-uXWoNJ2Ro │</span></div></div><div><span class="ch-code-line-number">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span>│ │</span></div></div><div><span class="ch-code-line-number">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span>│ This is the only time the API key will be displayed. │</span></div></div><div><span class="ch-code-line-number">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span>│ Make sure to store it in a secure location. │</span></div></div><div><span class="ch-code-line-number">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span>│ │</span></div></div><div><span class="ch-code-line-number">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span>│ The API key has been copied to your clipboard. Cmd + V to paste it. │</span></div></div><div><span class="ch-code-line-number">_<!-- -->13</span><div style="display:inline-block;margin-left:16px"><span>╰──────────────────────────────</span></div></div><br></code></div></div>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="authenticate-requests-with-the-langflow-api-key">Authenticate requests with the Langflow API key<a href="#authenticate-requests-with-the-langflow-api-key" class="hash-link" aria-label="Direct link to Authenticate requests with the Langflow API key" title="Direct link to Authenticate requests with the Langflow API key"></a></h2>
|
||
<p>Include your API key in API requests to authenticate requests to Langflow.</p>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="include-the-api-key-in-the-http-header">Include the API key in the HTTP header<a href="#include-the-api-key-in-the-http-header" class="hash-link" aria-label="Direct link to Include the API key in the HTTP header" title="Direct link to Include the API key in the HTTP header"></a></h3>
|
||
<p>To use the API key when making API requests with cURL, include the API key in the HTTP header.</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>curl -X POST \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> "http://127.0.0.1:7860/api/v1/run/*`YOUR_FLOW_ID`*?stream=false" \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> -H 'Content-Type: application/json' \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> -H 'x-api-key: *`YOUR_API_KEY`*' \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> -d '{"inputs": {"text":""}, "tweaks": {}}'</span></div></div><br></code></div></div>
|
||
<p>To instead pass the API key as a query parameter, do the following:</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>curl -X POST \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> "http://127.0.0.1:7860/api/v1/run/*`YOUR_FLOW_ID`*?x-api-key=*`YOUR_API_KEY`*?stream=false" \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> -H 'Content-Type: application/json' \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> -d '{"inputs": {"text":""}, "tweaks": {}}'</span></div></div><br></code></div></div>
|
||
<p>To use the API key when making API requests with the Python <code>requests</code> library, include the API key as a variable string.</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">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>import argparse</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>import json</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>from argparse import RawTextHelpFormatter</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>import requests</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>from typing import Optional</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>import warnings</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>try:</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> from langflow.load import upload_file</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>except ImportError:</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> warnings.warn("Langflow provides a function to help you upload files to the flow. Please install langflow to use it.")</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> upload_file = None</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span></span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>BASE_API_URL = "http://127.0.0.1:7860"</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>FLOW_ID = "*`YOUR_FLOW_ID`*"</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>ENDPOINT = "" # You can set a specific endpoint name in the flow settings</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span></span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span># You can tweak the flow by adding a tweaks dictionary</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span># e.g {"OpenAI-XXXXX": {"model_name": "gpt-4"}}</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>TWEAKS = {</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> "ChatInput-8a86T": {},</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> "Prompt-pKfl9": {},</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> "ChatOutput-WcGpD": {},</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> "OpenAIModel-5UyvQ": {}</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>}</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span></span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>def run_flow(message: str,</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> endpoint: str,</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> output_type: str = "chat",</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> input_type: str = "chat",</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> tweaks: Optional[dict] = None,</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> api_key: Optional[str] = None) -> dict:</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> """</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> Run a flow with a given message and optional tweaks.</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span></span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> :param message: The message to send to the flow</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> :param endpoint: The ID or the endpoint name of the flow</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> :param tweaks: Optional tweaks to customize the flow</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> :return: The JSON response from the flow</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> """</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> api_url = f"{BASE_API_URL}/api/v1/run/{endpoint}"</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span></span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> payload = {</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> "input_value": message,</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> "output_type": output_type,</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> "input_type": input_type,</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> }</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> headers = None</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> if tweaks:</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> payload["tweaks"] = tweaks</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> if api_key:</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> headers = {"x-api-key": api_key}</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> response = requests.post(api_url, json=payload, headers=headers)</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> return response.json()</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span></span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>def main():</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> parser = argparse.ArgumentParser(description="""Run a flow with a given message and optional tweaks.</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>Run it like: python <your file>.py "your message here" --endpoint "your_endpoint" --tweaks '{"key": "value"}'""",</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> formatter_class=RawTextHelpFormatter)</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> parser.add_argument("message", type=str, help="The message to send to the flow")</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> parser.add_argument("--endpoint", type=str, default=ENDPOINT or FLOW_ID, help="The ID or the endpoint name of the flow")</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> parser.add_argument("--tweaks", type=str, help="JSON string representing the tweaks to customize the flow", default=json.dumps(TWEAKS))</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> parser.add_argument("--api_key", type=str, help="API key for authentication", default=None)</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> parser.add_argument("--output_type", type=str, default="chat", help="The output type")</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> parser.add_argument("--input_type", type=str, default="chat", help="The input type")</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> parser.add_argument("--upload_file", type=str, help="Path to the file to upload", default=None)</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> parser.add_argument("--components", type=str, help="Components to upload the file to", default=None)</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span></span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> args = parser.parse_args()</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> try:</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> tweaks = json.loads(args.tweaks)</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> except json.JSONDecodeError:</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> raise ValueError("Invalid tweaks JSON string")</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span></span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> if args.upload_file:</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> if not upload_file:</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> raise ImportError("Langflow is not installed. Please install it to use the upload_file function.")</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> elif not args.components:</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> raise ValueError("You need to provide the components to upload the file to.")</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> tweaks = upload_file(file_path=args.upload_file, host=BASE_API_URL, flow_id=args.endpoint, components=[args.components], tweaks=tweaks)</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span></span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> response = run_flow(</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> message=args.message,</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> endpoint=args.endpoint,</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> output_type=args.output_type,</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> input_type=args.input_type,</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> tweaks=tweaks,</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> api_key=args.api_key</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> )</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span></span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> print(json.dumps(response, indent=2))</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span></span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span>if __name__ == "__main__":</span></div></div><div><span class="ch-code-line-number">_<!-- -->93</span><div style="display:inline-block;margin-left:16px"><span> main()</span></div></div><br></code></div></div>
|
||
<p>To pass the API key to your script with a command line argument, do the following:</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>python your_script.py "*`YOUR_INPUT_MESSAGE`*" --api_key "*`YOUR_API_KEY`*"</span></div></div><br></code></div></div>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="security-considerations">Security considerations<a href="#security-considerations" class="hash-link" aria-label="Direct link to Security considerations" title="Direct link to Security considerations"></a></h2>
|
||
<ul>
|
||
<li><strong>Visibility</strong>: For security reasons, the API key cannot be retrieved again through the UI.</li>
|
||
<li><strong>Scope</strong>: The key allows access only to the flows and components of the specific user to whom it was issued.</li>
|
||
</ul>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="custom-api-endpoint">Custom API endpoint<a href="#custom-api-endpoint" class="hash-link" aria-label="Direct link to Custom API endpoint" title="Direct link to Custom API endpoint"></a></h2>
|
||
<p>To choose a custom name for your API endpoint, select <strong>Project Settings</strong> > <strong>Endpoint Name</strong> and name your endpoint.</p>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="revoke-an-api-key">Revoke an API key<a href="#revoke-an-api-key" class="hash-link" aria-label="Direct link to Revoke an API key" title="Direct link to Revoke an API key"></a></h2>
|
||
<p>To revoke an API key, delete it from the list of keys in the <strong>Settings</strong> menu.</p>
|
||
<ol>
|
||
<li>Click your user icon and select <strong>Settings</strong>.</li>
|
||
<li>Click <strong>Langflow API</strong>.</li>
|
||
<li>Select the keys you want to delete and click the trash can icon.</li>
|
||
</ol>
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<p>This action immediately invalidates the key and prevents it from being used again.</p></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/agents-tool-calling-agent-component"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Create a problem-solving agent</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/configuration-authentication"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Authentication</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="#generate-an-api-key" class="table-of-contents__link toc-highlight">Generate an API key</a><ul><li><a href="#generate-an-api-key-with-the-langflow-ui" class="table-of-contents__link toc-highlight">Generate an API key with the Langflow UI</a></li><li><a href="#generate-an-api-key-with-the-langflow-cli" class="table-of-contents__link toc-highlight">Generate an API key with the Langflow CLI</a></li></ul></li><li><a href="#authenticate-requests-with-the-langflow-api-key" class="table-of-contents__link toc-highlight">Authenticate requests with the Langflow API key</a><ul><li><a href="#include-the-api-key-in-the-http-header" class="table-of-contents__link toc-highlight">Include the API key in the HTTP header</a></li></ul></li><li><a href="#security-considerations" class="table-of-contents__link toc-highlight">Security considerations</a></li><li><a href="#custom-api-endpoint" class="table-of-contents__link toc-highlight">Custom API endpoint</a></li><li><a href="#revoke-an-api-key" class="table-of-contents__link toc-highlight">Revoke an API key</a></li></ul></div></div></div></div></main></div></div></div><div style="position:fixed;right:20px;bottom:20px;z-index:100;display:flex;align-items:center;gap:10px;cursor:pointer"><div style="background-color:#f6f6f6;border-radius:50%;width:48px;height:48px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px rgba(0,0,0,0.1)"><img src="/img/langflow-icon-black-transparent.svg" style="width:40px" alt="Search"></div></div></div>
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