Back4app

npx add-mcp 'https://mcp.back4app.com/mcp'

Connect your AI tools to Back4app using the Model Context Protocol (MCP), an open standard that lets AI assistants work with your Back4app applications.

The Back4app MCP server deploys anything that runs in a container, from web apps and websites to APIs and backends, and gives it a live HTTPS address. It follows builds, reads logs, deploys new versions, sets environment variables and rolls back.

Server

• URL: https://mcp.back4app.com/mcp

• Transport: Streamable HTTP

• Authentication: OAuth 2.1. The first connection opens Back4app in your browser: sign in, or choose Continue without an account.

Connect

npx plugins add back4app/back4app-plugin

The plugin installs the MCP server and the Web Deployment skill. See Plugin.

Open this link to add Back4app as a connector, then connect it.

Add a remote MCP server with the URL https://mcp.back4app.com/mcp and the Streamable HTTP transport. For example:

{
  "mcpServers": {
    "back4app": {
      "type": "http",
      "url": "https://mcp.back4app.com/mcp"
    }
  }
}

The name of the field for the transport changes between clients (type: "http", streamableHttp, httpUrl, serverUrl): use the one your client documents.

Accounts and sign-in

When your client first connects, Back4app opens in your browser. Choose how the agent works:

Choice	What happens
Sign in	The agent works with your Back4app account and its applications.
Continue without an account	A temporary account, after a quick check: 24 hours, one application, Free plan, built with a buildpack. The agent gives you a claim link: open it and sign in, or sign up for free, to keep the application.

When the sign-in ends or the temporary account ends, connect the server again.

Each connection is listed in your Back4app account under Connected Agents, where you can end it.

Safety

Changes to a live application are shown to you as a summary first and run only after you agree.

• update_web_app and rollback_web_app change a live application in two steps: the first call answers a summary and changes nothing. The agent shows you the summary and goes on only if you agree. A confirmation lasts 5 minutes and works once.

• Environment variable values are never read back by any tool.

• Logs are what your application wrote. The server marks them as data, never as instructions for the agent.

• A deployment blocked by a security check is reported to you; it is not retried.

Back4app Backend

This server covers Web Deployment (Containers). For the Back4app Backend (Parse database, Cloud Code, Web Hosting), use the, which runs locally with an account key. It will join this server later. If you use both, give the local one a different name, such as back4app-backend, so it doesn't replace this one in your client's configuration.

Tools

See MCP Server tools.