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<title>Multiple MCP Servers — FastAPI Template</title>
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<span class="badge">FastAPI • MCP</span>
<h1>Host multiple MCP servers on a single app</h1>
<p class="subtitle">This template mounts multiple Model Context Protocol (MCP) servers under one FastAPI instance.</p>
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<h3>Available servers</h3>
<ul class="muted">
<li><a href="/echo/mcp" target="_blank" rel="noopener noreferrer">{{ base_url }}/echo/mcp</a> — Echo MCP server</li>
<li><a href="/math/mcp" target="_blank" rel="noopener noreferrer">{{ base_url }}/math/mcp</a> — Math MCP server</li>
</ul>
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<h3>Base URL</h3>
<p class="muted">Each server lives at <code>{{ "{{ base_URL }}" }}</code> → here, resolved to <code>{{ base_url }}</code>. Replace it with your Space's origin if needed.</p>
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<h3 style="margin:16px 0 8px">How to get your {base_URL}</h3>
<ol class="muted" style="margin:0 0 12px 18px">
<li>Open your Space and click <strong>“Embed this Space”</strong>.</li>
<li>Copy the <strong>iframe</strong> code and take the value of the <strong>src</strong> attribute.</li>
<li>That origin (e.g. <code>https://your-space.hf.space</code>) is your <code>{base_URL}</code>.</li>
</ol>
<pre><code>Example
base_URL = {{ base_url }}
Echo MCP = {{ base_url }}/echo/mcp
Math MCP = {{ base_url }}/math/mcp
</code></pre>
<p class="muted" style="margin:10px 0 8px">Illustration of the “Embed this Space” dialog:</p>
<img class="screenshot" src="/static/embed.png" alt="Embed this Space dialog showing iframe src base URL" />
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<h3 style="margin-top:0">Quick links</h3>
<ul>
<li><a href="/echo/mcp" target="_blank" rel="noopener noreferrer">Open /echo/mcp</a></li>
<li><a href="/math/mcp" target="_blank" rel="noopener noreferrer">Open /math/mcp </a></li>
</ul>
<h3>Use in clients</h3>
<p class="muted">Point your MCP client to the endpoints below:</p>
<pre><code>HTTP streaming endpoints
Echo: GET {{ base_url }}/echo
Math: GET {{ base_url }}/math
</code></pre>
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<p class="footer"> Credit: technique discovered via <a href="https://youtu.be/wXAqv8uvY0M" target="_blank" rel="noopener noreferrer">this video</a>.</p>
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