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Apper for Claude

Build Apper apps inside Claude​

Connect Apper to Claude, describe the app you want in plain English, and keep building it directly from your Claude conversation.

Apper can create your app, show you a working preview, make changes when you ask, and connect the app to a real database when you are ready.

Connect Apper to Claude​

Apper can be added to Claude as a custom connector.

MCP server URLhttps://mcp.apper.io/v1.1/connect
  • Open Claude → Customize → Connectors.
  • Click + → Add custom connector.
  • Enter the Apper MCP server URL above.
  • Add the connector, then click Connect.
  • Sign in to your Apper account and approve the connection.
  • Start a conversation and enable Apper from the + → Connectors menu.
  • Tell Claude what you want to build.
info

On Team and Enterprise accounts, an organization owner may need to add or approve the connector before members can use it.

Start building​

You don't need to know the MCP commands or tool names. Just describe what you want Claude to do.

For example:

  • "Build a CRM for managing leads, contacts, and deals."
  • "Create a to-do app with categories and due dates."
  • "Show me a preview of my app."
  • "Add a dark mode option."
  • "Add a dashboard showing monthly sales."
  • "Connect this app to a real database."
  • "Show me my Apper apps."

Claude automatically selects the appropriate Apper tools based on your request.

Typical flow​

  • Describe your app: Tell Claude what you want to build. The create_app tool starts a new app from your description and uses sample data when needed.

  • Preview it: Claude checks whether the build is complete using get_build_status, then opens a working preview using preview_app.

  • Make changes: Tell Claude what you want to change. Apper reads and updates the necessary project files, rebuilds the app, and gives you a fresh preview.

  • Connect a database when needed: When your app needs real users, saved records, or persistent data, you can connect a real database using connect_database.
    caution

    This is a one-time, irreversible change. It replaces the sample data layer with the connected database, and the app cannot be switched back to sample data afterward.

    Make sure you are happy with the basic app before connecting the data.

  • Keep building: After connecting, you can keep changing the database, permissions, server-side functions, configuration, features, and design.

Updating an existing app​

You can also continue working on an app you already created.

For example:

  • "Open my CRM app and add a reports page."
  • "Change the dashboard design."
  • "Add a new field to contacts."
  • "Fix the mobile layout."
  • "Show me the latest preview."

Claude finds the relevant Apper app and makes the requested changes.

Tools​

Claude automatically selects the right Apper tool based on your request.

  • Read-only tools can view information but do not change your app.
  • Write tools can create, update, replace, or delete something in your app.

View all Apper MCP tools →

Authentication and security​

Apper uses OAuth for secure sign-in.

How sign-in works

  • When you connect Apper, Claude takes you to the Apper login page to approve access.
  • Your Apper password is never shared with Claude.
  • The connection only gives access to apps and data inside your authenticated Apper account. It cannot access another user's Apper account or the public web.
  • Secret values such as API keys are entered directly in the Apper dashboard. They never pass through the assistant and are never exposed to the model.
tip

Simple rule: Add your keys in Apper's Secrets page, not in the chat.

Privacy and data​

  • Apper only accesses the apps and data in your authenticated Apper account that are needed for the task you ask it to perform.
  • The connection does not request or access your Claude conversation history, raw chat messages, or transcripts. It also does not use a general-purpose context field to access unrelated information.
  • Your Apper connection is limited to what is needed to build and manage your apps.

Database connection is permanent​

Connecting your app to a real database is a one-time, irreversible change. It replaces the sample data layer with a real database, and you cannot switch the app back to sample data afterward.

Before connecting a database, make sure you are happy with your app's basic structure and functionality.

caution

Only connect a real database when you are ready to move from testing with sample data to working with real data.

Troubleshooting​

I can't see Apper in my conversation​

Open the + → Connectors menu and make sure Apper is enabled.

Also check that you completed the Apper sign-in process.

Claude asks me to reconnect​

Go to Customize → Connectors, find Apper, and connect it again.

I can't add a custom connector​

If you're using a Team or Enterprise account, your organization owner may need to add the connector first.

My app is still building​

Claude can check its current status. Simply ask:

"Check the status of my Apper app."

Support​

Still having trouble? [email protected]

Privacy policy: https://integrately.com/home/privacy