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Install the CLI to run browser agents, configure model profiles, and set up MCP. Install the SDK when browser-agent work belongs inside application code.

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CLI

Requires Node.js 20 or newer. 
curl -fsSL https://install.webcompute.dev | sh
exec "$SHELL" -l
web login wc_key_your_key_here
web status
The CLI owns local install, update, uninstall, auth storage, MCP startup, plugin setup, browser commands, and delegated web agent runs.

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SDK

npm install https://install.webcompute.dev/sdk/latest.tgz
The current SDK tarball is published at https://install.webcompute.dev/sdk/latest.tgz. Version metadata is available at https://install.webcompute.dev/sdk/latest.json. For reproducible installs, read latest.json, copy the versioned tarballUrl, and commit your lockfile.

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MCP

Run the MCP server directly: 
web mcp run
Configure a supported host: 
web mcp setup
web mcp setup writes a managed local stdio configuration for the target host. Use MCP integration for target-specific details.

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Update

web update
Use web doctor after updates when a host cannot find the CLI, an MCP process fails to start, or an API key is missing.