com.crosscheckapi/crosscheck

up checked 2026-11-11T04:39:24.588Z

Unclaimed · Unverified

Publisher-provided title

crosscheck

Publisher-provided description

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

Summary by lookupd

Reviews agent work, drafts, and skill or MCP server files for issues, and checks x402 seller endpoints with scheduled monitoring and alerts.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http crosscheck https://crosscheckapi.com/mcp

Claude Code, npm package (stdio)

claude mcp add crosscheck -- npx -y crosscheckapi

Codex, remote (streamable-http)

codex mcp add crosscheck --url https://crosscheckapi.com/mcp

Codex, npm package (stdio)

codex mcp add crosscheck -- npx -y crosscheckapi

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "crosscheck": {
      "url": "https://crosscheckapi.com/mcp"
    }
  }
}

Cursor, npm package (stdio) → .cursor/mcp.json

{
  "mcpServers": {
    "crosscheck": {
      "command": "npx",
      "args": [
        "-y",
        "crosscheckapi"
      ]
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Publisher-provided text

check Independent review of a draft (email, report, summary, PR description) before its human sees it. Returns pass or specific issues with fixes; arithmetic is recom
accept Checks work another agent handed back against the task it was given, before you pay, release escrow, or pass it on. Returns accept, reject, or verify_externally
skillcheck Security review of a skill or MCP server's files before you install or connect it: read, never run. Free when these exact files were scanned before (looked up b
sellercheck For x402 sellers: one dated report on your own paid resource, by code alone. Does it answer a valid 402 (v1 or v2: price, network, payTo), is it in the x402 Baz
sellerwatch For x402 sellers: sellercheck every hour for 30 days on one resource, paid once. An alert to your webhook (JSON POST) or ntfy topic only when something changes:
skillcheck_lookup Free. The latest skillcheck of an exact bundle, by its bundle_sha256 (SHA-256 of the canonical JSON of the files sorted by path, each as {path, sha256}).
verify_receipt Free. Before trusting work that arrives with a crosscheck receipt, check in code that crosscheck issued it, its signature is valid, what the outcome was, and th
result Free. Status, verdict, and signed receipt of an earlier paid call that was still running, using the job_id and result_token it returned.

Shows this live status and links here; updates hourly.

[![lookupd status](https://lookupd.com/badge/com.crosscheckapi/crosscheck.svg)](https://lookupd.com/servers/com.crosscheckapi/crosscheck)