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Zilliz MCP Server

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Enables AI agents to interact with Milvus vector databases and Zilliz Cloud through natural language...

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Updated Jan 30, 2026
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Enables AI agents to interact with Milvus vector databases and Zilliz Cloud through natural language, allowing users to create clusters, manage collections, insert vector data, and perform semantic searches directly from their AI assistants.
  1. Create / sign in to your Zilliz Cloud account

    • Open the Zilliz Cloud console (cloud.zilliz.com) and sign in or register if you don’t have an account.
  2. Open the Organization’s API Keys page

    • In the Zilliz Cloud console, go to the Organization → Security → API Keys (or “API Keys” for your organization).
    • Click the + API Key button to create a new key. (docs.zilliz.com)
  3. Configure the new API key

    • Give the key a descriptive name (≤ 64 characters).
    • Set the access scope / roles for the key. For least privilege, restrict the key to only the project, clusters, or volumes the MCP server needs. Only Organization Owners and Project Admins can create customized API keys. (docs.zilliz.com)
  4. Create and copy the API key value

    • Complete creation; copy the API key string that is shown in the console. Keep this value safe (store in your secret manager or clipboard for immediate use).
  5. Open the FastMCP connection interface (“Install Now”)

    • Click the “Install Now” button in your FastMCP UI to open the connection / environment variables entry form.
  6. Fill the environment variables in the FastMCP connection form

    • If you will run the MCP via StdIO (agent-managed server), add:
      • Key: ZILLIZ_CLOUD_TOKEN
      • Value:
    • If you will run the MCP as a standalone HTTP service (streamable-http / .env), add:
      • Key: ZILLIZ_API_KEY
      • Value:
    • Save / apply the connection so FastMCP stores the env value and installs the MCP server.
  7. (If running locally / manually) Use .env instead

    • If you start the server manually (streamable HTTP), create/update .env with:
      • ZILLIZ_API_KEY="your_api_key_here"
    • Then run the server per the README (for example: uv run src/zilliz_mcp_server/server.py --transport streamable-http).
  8. Verify the server / connection

    • After installing/saving, confirm the MCP server appears in your client’s tool list and that Zilliz control-plane tools (e.g., list_projects, list_clusters) work.
  9. Security & maintenance

    • Limit API key scope to the minimum required and rotate or revoke keys if compromised.
    • Use customized keys for long-lived service access and revoke or reset keys from the Zilliz Cloud console when needed. (docs.zilliz.com)

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