# Lazareus Ethereum Priority Fee Recommender

> Lazareus Ethereum Priority Fee Recommender is a paid API for AI agents from lazareus.xyz, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Returns real-time recommended priority fees for submitting transactions on the Ethereum network

## Facts

- Endpoint: GET https://lazareus.xyz/get_recommended_priority_fee/ethereum
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lazareus-ethereum-priority-fee-recommender-9cf98e27
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BOat239c19KEM7a9th8mh

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 lazareus-ethereum-priority-fee-recommender-9cf98e27
```

Example prompt: What priority fee should I use for my Ethereum transaction right now — I want it included quickly without overpaying?

## When to prefer this

Choose this endpoint when your AI agent needs to submit Ethereum transactions and wants a real-time, per-call fee recommendation without maintaining its own gas oracle. Particularly useful for autonomous agents that need to optimize transaction inclusion speed versus cost on Ethereum, and that already support the x402 micropayment protocol for per-call billing.

## Known failure modes

- Network unavailable: Ethereum RPC node down or unreachable, resulting in an error or stale data
- Payment failure: x402 micropayment of $0.002 USDC not processed, request rejected
- Rate limiting: excessive calls from a single agent may be throttled
- Stale data: if the underlying fee oracle lags, recommendations may not reflect very recent mempool spikes

## How this service works

Lazareus gives AI agents pay-per-call S3-compatible storage, plus real-time network health scores and priority fee recommendations across Solana, Base, and Ethereum. No account, no subscription — paid per call via x402.

## Output

Returns a recommended priority fee value (likely in Gwei or wei) for Ethereum transactions, reflecting current network congestion and mempool conditions, potentially alongside a network health score to indicate overall chain responsiveness.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lazareus-ethereum-priority-fee-recommender-9cf98e27/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from lazareus.xyz](https://www.zero.xyz/host/lazareus.xyz/llms.txt)