# x402-toolbox Chain Event Logs

> x402-toolbox Chain Event Logs is a paid API for AI agents from x402-toolbox.shablony-pro.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-01).

Fetches on-chain event logs from a specified blockchain schema/contract using a pay-per-call x402 micropayment model

## Facts

- Endpoint: GET https://x402-toolbox.shablony-pro.workers.dev/chain/event-logs?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-toolbox-chain-event-logs-c952b061
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zlgp5mcGjbj-o9RFoPIi2

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 x402-toolbox-chain-event-logs-c952b061
```

Example prompt: Can you pull the on-chain event logs for the contract schema 'ERC20Transfer' from the Base chain? I need to see recent events without having to sign up for anything — just pay per call.

## When to prefer this

Choose this endpoint when you need on-chain event log data from the Base network without requiring an API key or account signup, and you are able to pay $0.002 USDC per call via x402 micropayment. Prefer this for lightweight, ad-hoc event log queries where traditional RPC providers require registration or have restrictive free tiers.

## Known failure modes

- Missing or invalid schema parameter returns an error or empty result
- Insufficient USDC payment causes 402 Payment Required response
- Unrecognized or unsupported schema string yields no matching logs
- Network or Cloudflare Worker timeout for large log queries
- Rate limiting if payment settlement is delayed

## How this service works

309 deterministic pay-per-call tools for AI agents over x402 (USDC, Base). No signup, no API key: the payment is the identity.

## Output

Returns a JSON object with ok and paid boolean flags plus the matching on-chain event log entries (transactions, emitted events, indexed parameters) for the requested chain schema.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-toolbox-chain-event-logs-c952b061/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-toolbox.shablony-pro.workers.dev](https://www.zero.xyz/host/x402-toolbox.shablony-pro.workers.dev/llms.txt)