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</li></ul></nav></div></div></aside><main class="docMainContainer_TBSr"><div class="container padding-top--md padding-bottom--lg"><div class="row"><div class="col docItemCol_VOVn"><div class="docItemContainer_Djhp"><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label="Breadcrumbs"><ul class="breadcrumbs"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Develop</span></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Observability</span></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Monitoring</span></li><li class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link">Arize</span></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Arize</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: #c9d1d9;--ch-t-sideBar-border: #30363d;--ch-t-list-activeSelectionBackground: #6e768166;--ch-t-list-activeSelectionForeground: #c9d1d9;--ch-t-list-hoverBackground: #6e76811a;--ch-t-list-hoverForeground: #c9d1d9; }</style>
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<!-- -->
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<p>Arize is a tool built on <a href="https://opentelemetry.io/" target="_blank" rel="noopener noreferrer">OpenTelemetry</a> and <a href="https://docs.arize.com/phoenix/reference/open-inference" target="_blank" rel="noopener noreferrer">OpenInference</a> for monitoring and optimizing LLM applications.</p>
|
||
<p>To enable Arize tracing, set the required Arize environment variables in your Langflow deployment.
|
||
Arize begins monitoring and collecting telemetry data from your LLM applications automatically.</p>
|
||
<div class="theme-admonition theme-admonition-tip admonition_xJq3 alert alert--success"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 12 16"><path fill-rule="evenodd" d="M6.5 0C3.48 0 1 2.19 1 5c0 .92.55 2.25 1 3 1.34 2.25 1.78 2.78 2 4v1h5v-1c.22-1.22.66-1.75 2-4 .45-.75 1-2.08 1-3 0-2.81-2.48-5-5.5-5zm3.64 7.48c-.25.44-.47.8-.67 1.11-.86 1.41-1.25 2.06-1.45 3.23-.02.05-.02.11-.02.17H5c0-.06 0-.13-.02-.17-.2-1.17-.59-1.83-1.45-3.23-.2-.31-.42-.67-.67-1.11C2.44 6.78 2 5.65 2 5c0-2.2 2.02-4 4.5-4 1.22 0 2.36.42 3.22 1.19C10.55 2.94 11 3.94 11 5c0 .66-.44 1.78-.86 2.48zM4 14h5c-.23 1.14-1.3 2-2.5 2s-2.27-.86-2.5-2z"></path></svg></span>tip</div><div class="admonitionContent_BuS1"><p>Instructions for integrating Langflow and Arize are also available in the Arize documentation:</p><ul>
|
||
<li><a href="https://arize.com/docs/ax/integrations/frameworks-and-platforms/langflow/langflow-tracing" target="_blank" rel="noopener noreferrer">Langflow tracing with Arize Platform</a></li>
|
||
<li><a href="https://arize.com/docs/phoenix/integrations/langflow/langflow-tracing" target="_blank" rel="noopener noreferrer">Langflow tracing with Arize Phoenix</a></li>
|
||
</ul></div></div>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="prerequisites">Prerequisites<a href="#prerequisites" class="hash-link" aria-label="Direct link to Prerequisites" title="Direct link to Prerequisites"></a></h2>
|
||
<ul>
|
||
<li>If you are using the <a href="https://docs.arize.com/arize" target="_blank" rel="noopener noreferrer">standard Arize platform</a>, you need an <strong>Arize Space ID</strong> and <strong>Arize API Key</strong>.</li>
|
||
<li>If you are using the open-source <a href="https://docs.arize.com/phoenix" target="_blank" rel="noopener noreferrer">Arize Phoenix platform</a>, you need an <strong>Arize Phoenix API key</strong>.</li>
|
||
</ul>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="connect-arize-to-langflow">Connect Arize to Langflow<a href="#connect-arize-to-langflow" class="hash-link" aria-label="Direct link to Connect Arize to Langflow" title="Direct link to Connect Arize to Langflow"></a></h2>
|
||
<div class="tabs-container tabList__CuJ"><ul role="tablist" aria-orientation="horizontal" class="tabs"><li role="tab" tabindex="0" aria-selected="true" class="tabs__item tabItem_LNqP tabs__item--active">Arize Platform</li><li role="tab" tabindex="-1" aria-selected="false" class="tabs__item tabItem_LNqP">Arize Phoenix</li></ul><div class="margin-top--md"><div role="tabpanel" class="tabItem_Ymn6"><ol>
|
||
<li>
|
||
<p>In your <a href="https://app.arize.com/" target="_blank" rel="noopener noreferrer">Arize dashboard</a>, copy your <strong>Space ID</strong> and <a href="https://arize.com/docs/ax/security-and-settings/api-keys" target="_blank" rel="noopener noreferrer"><strong>API Key (Ingestion Service Account Key)</strong></a>.</p>
|
||
</li>
|
||
<li>
|
||
<p>In the root of your Langflow application, edit your existing Langflow <code>.env</code> file or create a new one.</p>
|
||
</li>
|
||
<li>
|
||
<p>Add <code>ARIZE_SPACE_ID</code> and <code>ARIZE_API_KEY</code> environment variables:</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>ARIZE_SPACE_ID=SPACE_ID</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>ARIZE_API_KEY=API_KEY</span></div></div><br></code></div></div>
|
||
<p>Replace <code>SPACE_ID</code> and <code>API_KEY</code> with the values you copied from the Arize platform.</p>
|
||
<p>You don't need to specify the Arize project name if you're using the standard Arize platform.</p>
|
||
</li>
|
||
<li>
|
||
<p>Start your Langflow application with your <code>.env</code> file:</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>uv run langflow run --env-file .env</span></div></div><br></code></div></div>
|
||
</li>
|
||
</ol></div><div role="tabpanel" class="tabItem_Ymn6" hidden=""><ol>
|
||
<li>
|
||
<p>In your <a href="https://app.phoenix.arize.com/" target="_blank" rel="noopener noreferrer">Arize Phoenix dashboard</a>, copy your <strong>API Key</strong>.</p>
|
||
</li>
|
||
<li>
|
||
<p>In the root of your Langflow application, edit your existing Langflow <code>.env</code> file or create a new one.</p>
|
||
</li>
|
||
<li>
|
||
<p>Add a <code>PHOENIX_API_KEY</code> environment variable:</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>PHOENIX_API_KEY=API_KEY</span></div></div><br></code></div></div>
|
||
<p>Replace <code>API_KEY</code> with the Arize Phoenix API key that you copied from the Arize Phoenix platform.</p>
|
||
</li>
|
||
<li>
|
||
<p>Start your Langflow application with your <code>.env</code> file:</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>uv run langflow run --env-file .env</span></div></div><br></code></div></div>
|
||
</li>
|
||
</ol></div></div></div>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="run-a-flow-and-view-metrics-in-arize">Run a flow and view metrics in Arize<a href="#run-a-flow-and-view-metrics-in-arize" class="hash-link" aria-label="Direct link to Run a flow and view metrics in Arize" title="Direct link to Run a flow and view metrics in Arize"></a></h2>
|
||
<ol>
|
||
<li>
|
||
<p>In Langflow, run a flow that has an LLM-driven component, such as an <strong>Agent</strong> component or any language model component.
|
||
You must chat with the flow or trigger the LLM to produce traffic for Arize to trace.</p>
|
||
<p>For example, you can create a flow with the <strong>Simple Agent</strong> template, add your OpenAI API key to the <strong>Agent</strong> component, and then click <strong>Playground</strong> to chat with the flow and generate traffic.</p>
|
||
</li>
|
||
<li>
|
||
<p>In Arize, open your project dashboard, and then wait for Arize to process the data.
|
||
This can take a few minutes.</p>
|
||
</li>
|
||
<li>
|
||
<p>To view metrics for your flows, go to the <strong>LLM Tracing</strong> tab.</p>
|
||
<p>Each Langflow execution generates two traces in Arize:</p>
|
||
<ul>
|
||
<li>The <code>AgentExecutor</code> trace is the Arize trace of LangChain's <code>AgentExecutor</code>.</li>
|
||
<li>The <code>UUID</code> trace is the trace of the Langflow components.</li>
|
||
</ul>
|
||
</li>
|
||
<li>
|
||
<p>To view traces, go to the <strong>Traces</strong> tab.</p>
|
||
<p>A <em>trace</em> is the complete journey of a request, made of multiple <em>spans</em>.</p>
|
||
</li>
|
||
<li>
|
||
<p>To view spans, go to the <strong>Spans</strong> tab.</p>
|
||
<p>A <em>span</em> is a single operation within a trace.
|
||
For example, a <em>span</em> could be a single API call to OpenAI or a single function call to a custom tool.</p>
|
||
<p>For information about tracing metrics in Arize, see the <a href="https://docs.arize.com/arize/llm-tracing/tracing" target="_blank" rel="noopener noreferrer">Arize LLM tracing documentation</a>.</p>
|
||
</li>
|
||
<li>
|
||
<p>To add a span to a <a href="https://docs.arize.com/arize/llm-datasets-and-experiments/datasets-and-experiments" target="_blank" rel="noopener noreferrer">dataset</a>, click <strong>Add to Dataset</strong>.</p>
|
||
<p>All metrics on the <strong>LLM Tracing</strong> tab can be added to datasets.</p>
|
||
</li>
|
||
<li>
|
||
<p>To view a dataset, click the <strong>Datasets</strong> tab, and then select your dataset.</p>
|
||
</li>
|
||
</ol></div></article><nav class="docusaurus-mt-lg pagination-nav" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/logging"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Logs</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/integrations-langfuse"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Langfuse</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="#prerequisites" class="table-of-contents__link toc-highlight">Prerequisites</a></li><li><a href="#connect-arize-to-langflow" class="table-of-contents__link toc-highlight">Connect Arize to Langflow</a></li><li><a href="#run-a-flow-and-view-metrics-in-arize" class="table-of-contents__link toc-highlight">Run a flow and view metrics in Arize</a></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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