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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_z5aJ"><div class="theme-doc-version-banner alert alert--warning margin-bottom--md" role="alert"><div>This is unreleased documentation for <!-- -->Langflow Documentation<!-- --> <b>1.11.x (Next)</b> version.</div><div class="margin-top--md">For up-to-date documentation, see the <b><a href="/memory-base">latest version</a></b> (<!-- -->1.10.x<!-- -->).</div></div><div class="docItemContainer_c0TR"><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" aria-hidden="true" focusable="false" role="presentation" class="breadcrumbHomeIcon_xK9p"><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">Components reference</span></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Core components</span></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Files and Knowledge</span></li><li class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link">Memory Base</span></li></ul></nav><div class="docMetaRow_c2hx"><div class="root_Eutc"><button type="button" class="button_gpNY"><span aria-hidden="true" class="icon_Bm9L"><svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-copy"><rect width="14" height="14" x="8" y="8" rx="2" ry="2"></rect><path d="M4 16c-1.1 0-2-.9-2-2V4c0-1.1.9-2 2-2h10c1.1 0 2 .9 2 2"></path></svg></span><span class="label_LzDG">Copy page</span></button></div><span class="theme-doc-version-badge badge badge--secondary">Version: 1.11.x (Next)</span></div><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>Memory Base</h1></header><p>A memory base is a per-flow vector store that automatically ingests conversation messages after each flow run.
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The Memory Base component retrieves context from a <a class="" href="/next/memory-bases">memory base</a> attached to the current flow using semantic search.
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The most relevant conversation chunks are returned as a <a class="" href="/data-types#dataframe">DataFrame</a>.</p>
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<h2 class="anchor anchorTargetStickyNavbar_Vzrq" id="memory-base-parameters">Memory Base parameters<a href="#memory-base-parameters" class="hash-link" aria-label="Direct link to Memory Base parameters" title="Direct link to Memory Base parameters" translate="no"></a></h2>
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<p>Some parameters are hidden by default in the visual editor.
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You can modify all component parameters through the <a class="" href="/concepts-components#component-inspection-panel">component inspection panel</a> that appears when you select a component.</p>
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<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td><code>memory_base</code></td><td>Memory Base</td><td>Input parameter. Select the memory base to search. Only memory bases attached to the current flow are listed. Click the refresh button to reload the list after creating a new memory base.</td></tr><tr><td><code>search_query</code></td><td>Search Query</td><td>Input parameter. The query string used for semantic retrieval. If empty, no results are returned. Supports tool mode for agent use.</td></tr><tr><td><code>top_k</code></td><td>Top K Results</td><td>Input parameter. Number of top results to return. Default: <code>5</code>.</td></tr><tr><td><code>include_metadata</code></td><td>Include Metadata</td><td>Input parameter. Whether to include chunk metadata (session ID, sender, timestamp, and so on) on each output row. Default: enabled.</td></tr><tr><td><code>filter_by_session</code></td><td>Filter by Session</td><td>Input parameter. If enabled, only chunks from the current <code>session_id</code> are returned. Disable to search across all sessions ingested into this memory base, which is useful for cross-conversation recall. Default: enabled.</td></tr></tbody></table>
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<p>The output is a <code>DataFrame</code> named <strong>Results</strong> where each row represents one matching memory chunk.</p>
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<p>When <strong>Include Metadata</strong> is enabled, each row also contains fields such as <code>session_id</code>, <code>sender</code>, <code>sender_name</code>, and <code>timestamp</code>.</p>
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<p>When a search query is provided, each row includes a <code>_score</code> field with the similarity score.</p>
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<h2 class="anchor anchorTargetStickyNavbar_Vzrq" id="use-the-memory-base-component-in-a-flow">Use the Memory Base component in a flow<a href="#use-the-memory-base-component-in-a-flow" class="hash-link" aria-label="Direct link to Use the Memory Base component in a flow" title="Direct link to Use the Memory Base component in a flow" translate="no"></a></h2>
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<p>For more information, see <a class="" href="/next/memory-bases">Manage memory bases</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="/next/knowledge-base"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Knowledge Base</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/next/read-file"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Read File</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="#memory-base-parameters" class="table-of-contents__link toc-highlight">Memory Base parameters</a></li><li><a href="#use-the-memory-base-component-in-a-flow" class="table-of-contents__link toc-highlight">Use the Memory Base component in a flow</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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