MARKET MONITOR / CATALOGUE Services 86,883 MCP listed 39,685 x402 47,214 Rails Base / Solana / Polygon / Arbitrum Imported 2026-10-26 · 3 sources

Provider

presign-guard.onrender.com

presign-guard.onrender.com · 1 listed service · provider site

presign-guard x402 REST usage

Is this transaction, approval or signature safe to sign? Check it before your AI agent or wallet signs it: pre-sign verdict (green/orange/red + reason codes) for EVM transactions, token approvals and Permit/Permit2/EIP-3...

presign-guard.onrender.com Crypto & Payments 10 calls / 30d checked 2026-10-26

0.01 USDC per call per call

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