# propeller.rocks EVM Event Log Decoder

> propeller.rocks EVM Event Log Decoder is a paid API for AI agents from propeller.rocks, paid per call via x402, $0.001/call, status healthy (last checked 2026-09-15).

Decodes a raw EVM event log into its human-readable event name and named arguments using the event ABI or signature

## Facts

- Endpoint: GET https://propeller.rocks/decode/log
- Price: $0.001/call
- Payment: x402
- Status: healthy
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/propeller-rocks-evm-event-log-decoder-94727740
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SRlaIpsH-H_Jt0XJe0SzV

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 propeller-rocks-evm-event-log-decoder-94727740
```

Example prompt: Can you decode this EVM event log for me? Topics: ['0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef','0x000000000000000000000000sender','0x000000000000000000000000recipient'] and data: '0x0000000000000000000000000000000000000000000000000de0b6b3a7640000' — I want to know the event name and what each argument means.

## When to prefer this

Use this endpoint when you have raw EVM event log output (topics array + data hex) from a transaction receipt and need to decode it into a human-readable event name and its named arguments. Ideal for agents processing on-chain events, monitoring contract activity, or building transaction explorers without a full node.

## Known failure modes

- Unrecognized event signature returns an error or empty result if ABI/signature is not provided
- Malformed topics or data hex strings cause a parsing error
- Missing required fields (topics or data) result in a 400-level error
- Payment not included or insufficient USDC causes a 402 Payment Required response
- Invalid ABI JSON causes a schema validation error

## How this service works

Decode an EVM event log into event name and named arguments

## Output

Returns the decoded event name (e.g. 'Transfer') and an object of named arguments with their values extracted from the raw log topics and data fields, making the log human-readable.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/propeller-rocks-evm-event-log-decoder-94727740/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from propeller.rocks](https://www.zero.xyz/host/propeller.rocks/llms.txt)