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mcp/harbor
Claude Code

crosscheck for Claude Code

com.crosscheckapi/crosscheck

Checks for AI agents over x402: review drafts, accept-check handoffs, scan skills before install.

client:Claude Code transport:stdio runtime:npm

Install crosscheck in Claude Code

run in your project directory

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

claude mcp add crosscheck -e CROSSCHECK_WALLET_KEY=<CROSSCHECK_WALLET_KEY> -e CROSSCHECK_MAX_USD=<CROSSCHECK_MAX_USD> -e CROSSCHECK_NETWORKS=<CROSSCHECK_NETWORKS> -- npx -y crosscheckapi

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

crosscheck in other clients

crosscheck MCP server