@thoughtproof/mcp-server
MCP server that exposes ThoughtProof reasoning verification as a tool for Claude, Cursor, and any MCP-compatible host.
ThoughtProof runs adversarial multi-model critique on a claim and returns a verdict (ALLOW / HOLD / UNCERTAIN / DISSENT), a confidence score, and up to 3 key objections.
Install
npx @thoughtproof/mcp-server
Claude Desktop config
Add to ~/Library/Application Support/Claude/claude_desktop_config.json:
{
"mcpServers": {
"thoughtproof": {
"command": "npx",
"args": ["-y", "@thoughtproof/mcp-server"]
}
}
}
Example
User: Verify this trade: "Buy 50k USDC of ARB/USDC at market, stop-loss at -8%, no hedge."
Claude calls verify_reasoning:
{
"claim": "Buy 50k USDC of ARB/USDC at market, stop-loss at -8%, no hedge.",
"stakeLevel": "high",
"domain": "financial"
}
Tool response:
Verdict: HOLD
Confidence: 41.2%
Key objections:
1. Market-order entry on low-liquidity pair risks significant slippage on a $50k position.
2. -8% stop-loss is within normal daily volatility for ARB; likely to be triggered without a directional move.
3. No hedge leaves full downside exposure during high-beta drawdowns.
Verified in 18432ms
Payment (x402)
ThoughtProof charges per verification via the x402 protocol (Base USDC). If payment is not attached the tool returns a clear paymentRequired message with wallet and amount details.
