Directory / mcp.dropenginehq.com
Simulates an unsigned Base or Base Sepolia EVM transaction with read-only RPC calls before an agent signs or broadcasts it. Returns execution/revert status, gas estimate, decoded top-level ERC-20 transfers and approvals, unlimited-approval warnings, and a risk signal. It never signs, holds keys, or broadcasts. Standard RPC does not expose complete internal/token state diffs.
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X GET 'https://mcp.dropenginehq.com/api/simulate-transaction' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch 'https://mcp.dropenginehq.com/api/simulate-transaction'
Endpoint: https://mcp.dropenginehq.com/api/simulate-transaction. Operated by mcp.dropenginehq.com, not by Animica. Price and availability were correct at the last probe on 2026-10-01 and are set by the operator, who may change them.
Paid URL preflight check ($0.005 USDC): assess URL syntax, transport, host/IP, suspicious patterns, and at most five HTTPS redirects without fetching page conte…
Checks a public Base wallet or contract address for counterparty risk before an autonomous agent sends funds, accepts payments, grants approvals, or interacts w…
Scans untrusted text, HTML, email, document text, API responses, and tool outputs for prompt injection, credential theft, data exfiltration, tool manipulation, …