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Automaton Onchain & URL Tools
app.vercel.automaton-tx-explainer/base-tools in the official MCP registry.
Endpoint https://automaton-tx-explainer.vercel.app/mcp.
The registry describes it as: Paid x402 tools: tx, approvals, address, contract risk (Base/ETH/BSC) + URL safety.
We read its 20 tools on 2026-10-22. Nothing in them matched our tool-poisoning rules.
A clean read means these rules found nothing, not that the server is harmless. A server can change its tools at any time, which is why the index reads it again every week.
Tools it advertises
base_tx_explain base_token_approvals base_address_inspect base_contract_risk ethereum_tx_explain ethereum_token_approvals ethereum_address_inspect ethereum_contract_risk bsc_tx_explain bsc_token_approvals bsc_address_inspect bsc_contract_risk url_safety_check gas_snapshot ens_resolve calldata_decode wallet_portfolio wallet_report token_report ping
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The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/app-vercel-automaton-tx-explainer-base-tools)How this was checked
Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. What we found across the registry.
To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.
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