# Base L2 Gas Fee Oracle

> Base L2 Gas Fee Oracle is a paid API for AI agents from turboshop.ai, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-19).

Returns live EIP-1559 gas fee estimates (slow, standard, fast) and network congestion metrics for the Base L2 blockchain.

## Facts

- Endpoint: GET https://turboshop.ai/api/v1/products/prod-base-gas-oracle/buy?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-l2-gas-fee-oracle-4d98cf25
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9AHZ23D_xy7xDN_5GYJ7d

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 base-l2-gas-fee-oracle-4d98cf25
```

Example prompt: What are the current gas fees on Base L2 — give me the slow, standard, and fast estimates along with how congested the network is right now?

## When to prefer this

Choose this endpoint when you specifically need real-time EIP-1559 gas fee data for the Base L2 network (not Ethereum mainnet or other L2s). It is ideal for agents that must make on-chain transaction decisions dynamically, optimize gas costs across slow/standard/fast tiers, or monitor Base network congestion before committing to a transaction.

## Known failure modes

- Base L2 RPC node unavailable — may return 5xx or stale data
- Network congestion metrics may lag during extreme spike conditions
- Optional client_id not validated — no auth error but may affect logging
- Rate limits may apply at $0.02/call tier if called in rapid succession

## How this service works

Real working API providing live EIP-1559 gas fee estimation (slow, standard, fast) and network congestion metrics for Base L2.

## Output

Returns three-tier EIP-1559 gas fee estimates (slow, standard, fast) in gwei or wei, along with a network congestion metric for the Base L2 chain, enabling callers to select the appropriate fee tier for their transaction.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "client_id": {
   "type": "string",
   "description": "Optional calling agent or client ID"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-l2-gas-fee-oracle-4d98cf25/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from turboshop.ai](https://www.zero.xyz/host/turboshop.ai/llms.txt)