All servers · Agent payments (x402)

crosscheck

com.crosscheckapi/crosscheck · v0.5.5

Measured by MCP Station

Description written by the publisher, not verified

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

Connect

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

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

Tools as reported by the server

• 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 recomputed in code. With request (what the human asked), it also checks the draft answers that. With sources, each claim is checked against them
• 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 with every requirement judged; counts, required JSON fields, and sums are checked in code. Optional payment_tx is verified on chain. $0.03
• 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 by bundle hash); otherwise paid, $0.03 base. Never says safe. Paid per call in USDC over x402 (Base, or free test USDC on Base Sepolia). An x
• 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 that it covers exactly the text you were handed. Pass receipt_hash (or the receipt object) plus that text: draft, request, and sources for che
• 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.

Repository · Website · JSON · Text for agents · Registry updated 2026-09-28