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AgentForge EVM Transaction Decoder
x402
AgentForge EVM Transaction Decoder is a paid API for AI agents from agentforge-taupe.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-01).
Decodes a raw EVM transaction hash into human-readable function calls, parameters, and token transfers in plain English
Price / call$0.05
Success—
StatusUnknown
How this service works
Transaction decoder for agents and users who need to know what a raw EVM transaction actually does: function call, parameters, and token transfers in plain English. Category: data.
Output
A human-readable breakdown of the transaction including: the contract function that was called, decoded input parameters with labels, token transfer events (sender, recipient, amount, token), and a plain English summary of what the transaction accomplished.
Example use cases
Auditing an unknown wallet transaction
“I found this suspicious transaction on Base — 0x1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c — can you decode it and tell me what function was called and what parameters were passed?”
Verifying a DeFi swap before acting
“Can you explain what actually happened in this Arbitrum transaction 0x9f8e7d6c5b4a3f2e1d0c9b8a7f6e5d4c3b2a1f0e9d8c7b6a5f4e3d2c1b0a9f8e in plain English — specifically what tokens changed hands?”
Debugging a failed smart contract call
“This Polygon transaction 0x3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9c0d1e2f3a4b seems to have done something unexpected — decode it for me and show me the exact function and parameters that were executed.”
Technical details
Endpoint
GEThttps://agentforge-taupe.vercel.app/v1/tx-decode?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent or user needs to understand what a specific EVM transaction did without reading raw hex data. Ideal for post-hoc analysis of on-chain activity, auditing suspicious transactions, debugging smart contract interactions, or explaining DeFi actions to non-technical users. Supports Ethereum, Base, Polygon, Arbitrum, Optimism, and Avalanche. Prefer this over generic block explorers when a structured, machine-readable + human-readable decoded output is needed programmatically.
Side effects
- Transaction hash not found on the specified chain — returns error if the tx doesn't exist or is pending
- Invalid transaction hash format — returns validation error if hash doesn't match 0x + 64 hex chars pattern
- Unknown or unverified contract ABI — decoder may return partial results if the contract is unverified
- Chain mismatch — transaction exists on a different chain than specified
- Network timeout — chain RPC unavailable at time of request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | |
| txHash | string | Transaction hash |
Tags
x402
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