# Saylor Innovations — Contract Event Logs (Base)

> Saylor Innovations — Contract Event Logs (Base) is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-30).

Retrieves on-chain event logs emitted by a smart contract at a given address on the Base EVM network.

## Facts

- Endpoint: GET https://saylorinnovations.com/api/evm/base/events/:address?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-contract-event-logs-base-41548aa5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vTSqMQejcwyKLTB3G6HpS

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 saylor-innovations-contract-event-logs-base-41548aa5
```

Example prompt: Pull all the on-chain event logs for the smart contract at address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base and show me what events it has emitted.

## When to prefer this

Use this endpoint when you need to retrieve raw or decoded event logs from a specific smart contract deployed on the Base EVM network. It is ideal for auditing contract activity, monitoring DeFi protocol events, debugging smart contract behavior, or building analytics on Base chain data without running your own node.

## Known failure modes

- Invalid or malformed contract address returns an error
- Contract address with no emitted events returns an empty log list
- Rate limiting or network congestion may delay response
- Non-existent address on Base returns empty or error response
- Base RPC node downtime causes service unavailability

## How this service works

Contract Event Logs (base). Base contract event logs: raw logs for a contract, optional ?topic0= event filter, up to 2,000 blocks, newest first, up to 200 rows.

## Output

Returns a list of event log entries emitted by the specified smart contract on the Base EVM network, including event topics, log data payloads, block numbers, transaction hashes, and log indices for each event.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-contract-event-logs-base-41548aa5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)