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Explain what an EVM transaction would actually do: decodes the…

Explain what an EVM transaction would actually do: decodes the calldata (ERC-20 transfers/approvals via known ABIs, unknown selectors via the 4byte directory) and simulates the call against live chain state to report the outcome, including unlimited-approval warnings, without sending anything. Use this when an agent needs to decode and simulate a transaction, before signing it.

Ready now1 call · 1 buyer in 30 days

Input

Chain
Calldata (0x hex)
To address
Value (wei, optional)

Sample response

Published by the provider. Your run returns a fresh response.

response2 keys
result2 keys
answer"live data — call the API"
valuenull
tool"tx-explain"
responseobject, 2 keys
Your agent can do this on its own
Add the MCP URL in Claude Code, Cursor or Codex. Your agent can run Tools within its spending limits, or ask for approval each time. Connect your agent

Connect your agent

Add one MCP URL and your agent can find and run this tool within its spending limits. Choose “Ask each time” if you want to approve every Call.

MCP URL

https://app.aecon.ai/mcp
Terminalbash
claude mcp add --transport http --scope user agentic-economy "https://app.aecon.ai/mcp"

In Claude Code, open /mcp, select agentic-economy, then choose Authenticate.

Track record

Paid calls, last 30 days
1
Buyers, last 30 days
1
Last paid call

Reported by the x402 directory.

A$0.022 per call