# BNB Smart Chain Tx Explainer

> BNB Smart Chain Tx Explainer is a paid API for AI agents from automaton-tx-explainer.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Explains a BNB Smart Chain transaction by returning its status, fee, decoded method with arguments, and ERC-20 token transfers with symbols and human-readable amounts.

## Facts

- Endpoint: GET https://automaton-tx-explainer.vercel.app/v1/bsc/tx?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bnb-smart-chain-tx-explainer-42d3c657
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_unhEnkpXyovdFV55lADRa

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 bnb-smart-chain-tx-explainer-42d3c657
```

Example prompt: Can you explain what happened in this BNB Smart Chain transaction — 0x3f5a2b1c8d9e4f67a0b1c2d3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9c0d1e2f? I want to know its status, fee, what method was called, and any token transfers.

## When to prefer this

Use this endpoint when you specifically need to understand a BNB Smart Chain (BSC) transaction — its outcome, cost, what on-chain action it performed, and which ERC-20 tokens moved. Prefer it over Ethereum or Base equivalents when the tx hash belongs to BSC. It is ideal for DeFi debugging, payment verification, and audit trails on BSC.

## Known failure modes

- Invalid or malformed transaction hash returns a validation error
- Transaction hash not found on BNB Smart Chain returns a not-found error
- Unrecognized method signature returns raw calldata without decoded args
- Payment not received results in HTTP 402 response
- Network timeouts or RPC issues may cause intermittent failures

## How this service works

Explain a BNB Smart Chain transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts.

## Output

Returns the transaction status (success/failure), gas fee in human-readable form, the decoded contract method name and its arguments (via openchain signature DB), and a list of ERC-20 transfers including token symbols and human-readable token amounts.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "hash"
     ],
     "properties": {
      "hash": {
       "type": "string",
       "pattern": "^0x[0-9a-fA-F]{64}$",
       "description": "BNB Smart Chain transaction hash"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bnb-smart-chain-tx-explainer-42d3c657/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from automaton-tx-explainer.vercel.app](https://www.zero.xyz/host/automaton-tx-explainer.vercel.app/llms.txt)