Onepassword Agent MCP vs Aegis

In-depth architectural comparison of the Onepassword Agent MCP and Aegis MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Onepassword Agent MCP when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Onepassword Agent MCP Details

Choose Aegis when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: AES-256-GCM encrypted credential vault, Transparent HTTP proxy with credential injection, Agent authentication and scoped credential grants.

Explore Aegis Details

Feature & Specification Comparison

Specification	Onepassword Agent MCP Security	Aegis getaegis Security
Summary	Local MCP access to approved 1Password fields without exposing plaintext secrets to AI agents.	Credential isolation proxy for AI agents. Injects secrets at the network boundary with domain restrictions, agent authentication, and audit logging. No SDK required — works as a transparent HTTP proxy or MCP server.
Category & Scope	Security

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "onepassword-agent-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "onepassword-agent-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "getaegis-aegis": {
      "command": "npx",
      "args": [
        "slack-mcp-server"
      ]
    }
  }
}

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