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Unstructured Foundation is an Early Access product. Unstructured must accept you into the Early Access program before you can begin using Foundation. Add your name to the Early Access interest list.Unstructured is currently accepting a limited number of participants into the Early Access program at its discretion, with plans to expand access to a more general audience in the future.The following information is being provided to give you an advance preview of possible future functionality. Unstructured makes no express claims as to what extent this information will reflect the state of the product upon initial general availability.

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Requirements

Before you begin, you must have the following:

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Set up Foundation

Complete the following steps, depending whether you are a Claude Free plan user; or a Pro, Max, Team, or Enterprise user.
  1. Start Claude Desktop.
  2. If prompted, sign in to your Claude Free plan.
  3. On the sidebar, click the speech balloons icon (Chat).
  4. On the sidebar, click Customize.
  5. On the sidebar, click Connectors.
  6. Next to Connectors, click the plus icon (Add connector), and then click Add custom connector. If Add custom connector is disabled, this is because Claude Desktop restricts Free plan users to having only one custom connector defined at a time. Disconnect and then Remove the current custom connector, and then follow the rest of the steps in this procedure to add a replacement custom connector for the Foundation MCP server.
  7. In the Add custom connector dialog, for Name, enter Unstructured Foundation.
  8. For Remote MCP server URL, enter the following: https://mcp.foundation.unstructured.io/mcp
  9. Click Add.
  10. Click Connect.
  11. A web browser tab will appear, prompting you to authenticate with Foundation. Follow the on-screen instructions to finish authenticating.

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Connect to and index your source

  1. From your AI tool, prompt with the following:
    • For Claude Free plan users: Generate a link to connect Unstructured Foundation to a new source.
    • For Claude Pro, Max, Team, and Enterprise plan users: /foundation:connect
  2. Click the link that appears in the response. If the link does not appear, go to the following link in your web browser instead: https://foundation.unstructured.io/connect
  3. If prompted, log in to Foundation.
  4. The Connect sources to use Foundation page appears. Connecting to a new source from Claude Desktop If this page does not appear after you sign in to Foundation, click the New Source button to show a page with similar functionality.
  5. Click one of the available sources, and then click Connect.
  6. Follow the on-screen directions to finish connecting to your source.
  7. View the source files’ ingestion and indexing job’s progress. To do this, on the sidebar, click Summary.
  8. Wait until the source’s tile displays Fully indexed.
  9. Click Open Claude.
     Open the job summary and query in Claude Desktop
  10. Submit Foundation’s auto-generated prompt to get a summary about what was ingested and indexed.
     Start querying in Claude
  11. You can now start using your AI tool to work with the generated index. For example, you can ask your AI tool questions such as the following: 
    What is a summary of the kinds of information that are available in the Unstructured Foundation index about my sources?

    What are some examples of the kinds of questions I can ask the Unstructured Foundation index about my sources?

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Next steps

  • To learn more about how to use Unstructured Foundation, enter the following prompt in Claude Desktop:
    • For Claude Free plan users: Teach me how to use Unstructured Foundation.
    • For Claude Pro, Max, Team, and Enterprise plan users: /foundation:help
  • Manage your Foundation sources: Add, change, and remove sources from Foundation.
  • Foundation storage: Understand what artifacts that Foundation generates, indexes, and stores about your sources.
  • Troubleshoot Foundation: Solutions for common issues.

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Questions? Need help?