# BeCoder Transaction Decoder Agent

> BeCoder Transaction Decoder Agent is a paid API for AI agents from agent.becoder.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-28).

Decodes blockchain transaction data, returning human-readable details from raw transaction input using the BeCoder tx-decoder service

## Facts

- Endpoint: GET https://agent.becoder.xyz/v1/agents/tx-decoder/decode?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/becoder-transaction-decoder-agent-fee777e1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fhzicyE0I6i4qVJvgIMrm

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability becoder-transaction-decoder-agent-fee777e1
```

Example prompt: Can you decode this Ethereum transaction for me and tell me what function was called and what parameters were passed in?

## When to prefer this

Choose this endpoint when you need to decode raw Ethereum or EVM-compatible blockchain transaction calldata into human-readable function names and parameters. Particularly useful for debugging failed transactions, auditing DeFi interactions, or explaining on-chain activity to users. Prefer this over manual ABI decoding when a quick, pay-per-call API is sufficient and you don't need to run your own decoding infrastructure.

## Known failure modes

- Invalid or malformed transaction data returns an error
- Unrecognized ABI or unknown contract may result in partially decoded or undecoded output
- Network errors or service unavailability may cause timeouts
- Transactions with custom or unverified ABIs may not fully decode

## How this service works

BeCoder tx-decoder — 0.005 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 per call

## Output

The agent receives a decoded representation of the blockchain transaction, including the function name, parameter names and values, and other structured details extracted from raw transaction calldata or transaction data, presented in a human-readable format.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "bodyType": {
     "type": "string"
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {}
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/becoder-transaction-decoder-agent-fee777e1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent.becoder.xyz](https://www.zero.xyz/host/agent.becoder.xyz/llms.txt)