# CanaryGuard Base Transaction Status Decoder

> CanaryGuard Base Transaction Status Decoder is a paid API for AI agents from canaryguard-402.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Decodes Base Mainnet transaction receipts, including EIP-3009 transferWithAuthorization settlements, ERC-20 transfer logs, gas fees, and finality confirmations for a given tx hash.

## Facts

- Endpoint: GET https://canaryguard-402.onrender.com/v1/tx-status-base?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/canaryguard-base-transaction-status-decoder-34b410cf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_l120FxCcUngkljTZF6dzh

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 canaryguard-base-transaction-status-decoder-34b410cf
```

Example prompt: Can you decode the transaction receipt for Base Mainnet tx hash 0xabc123... and tell me whether the ERC-20 transfer is finalized, how much gas was paid, and whether the EIP-3009 authorization was settled?

## When to prefer this

Choose this endpoint when you need to decode and verify Base Mainnet transaction receipts with specific support for EIP-3009 transferWithAuthorization, ERC-20 logs, gas analytics, and finality confirmation — especially useful for on-chain payment verification workflows where you need structured decoded output rather than raw RPC data.

## Known failure modes

- Transaction hash not found on Base Mainnet — returns error if hash is invalid or on wrong chain
- Transaction still pending — may return unconfirmed status if not yet mined
- Rate limiting or payment failure — x402 payment of $0.008 USDC required per call
- Malformed tx_hash input — returns validation error if hash format is incorrect
- RPC timeout — upstream Base node may be slow during network congestion

## How this service works

Decodes Base Mainnet transaction receipts, EIP-3009 transferWithAuthorization settlements, ERC-20 transfer logs, gas fees, and finality confirmations.

## Output

Returns decoded transaction receipt data including confirmation status, finality flag, gas used and effective gas price, ERC-20 Transfer event logs (sender, recipient, amount, token), and EIP-3009 transferWithAuthorization settlement details if present.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "tx_hash": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/canaryguard-base-transaction-status-decoder-34b410cf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from canaryguard-402.onrender.com](https://www.zero.xyz/host/canaryguard-402.onrender.com/llms.txt)