X402 Preflight vs Frisk

In-depth architectural comparison of the X402 Preflight and Frisk 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 X402 Preflight when:

• You need dedicated capabilities in the Finance & Fintech domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore X402 Preflight Details

Choose Frisk when:

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

Explore Frisk Details

Feature & Specification Comparison

Specification	X402 Preflight Finance & Fintech	Frisk Finance & Fintech
Summary	Inspect and validate an x402 endpoint before an autonomous agent spends USDC.	Screen the counterparty of an x402 payment before an agent pays it. Runs offline by default.
Category & Scope	Finance & Fintech	Finance & Fintech
Quality signal

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": {
    "x402-preflight": {
      "url": "https://l402.chikocorp.com/api/l402/repo-opportunity-scan"
    }
  }
}

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

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