# Aave V3 / Moonwell Liquidation Scanner on Base

> Aave V3 / Moonwell Liquidation Scanner on Base is a paid API for AI agents from httpay.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Scans Aave V3 and Moonwell lending protocols on Base for positions with health factor below a configurable threshold, returning accounts at liquidation risk with collateral/debt breakdown and estimated liquidation profit.

## Facts

- Endpoint: POST https://httpay.xyz/api/liquidation-scanner
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/httpay-xyz-605bd65a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wbri7MSSKqFzkwg5kSU5K

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 httpay-xyz-605bd65a -d '<json body>'
```

Example prompt: Scan Aave V3 and Moonwell on Base for any positions with a health factor below 1.3 and show me the accounts, their collateral and debt breakdown, and estimated liquidation profit for each.

## When to prefer this

Use this endpoint when building or operating a liquidation bot targeting Aave V3 or Moonwell on Base, when you need a ready-made scanner that returns structured at-risk position data without querying the chain yourself, or when you need estimated liquidation profit to prioritize which positions to liquidate first.

## Known failure modes

- RPC node unavailable for Base chain — returns 503 or timeout
- Invalid protocol parameter — returns 400 with validation error
- Health factor threshold out of valid range — returns 400
- No positions found below threshold — returns empty array (200)
- Payment not received or insufficient USDC — returns 402 payment required

## How this service works

Scan Aave V3 + Moonwell on Base for positions with health factor < 1.5. Returns accounts, collateral/debt, estimated liquidation bonus. Essential for liquidation bots.

## Output

A list of at-risk lending positions on Aave V3 and/or Moonwell on Base, each including the account address, current health factor, collateral assets and amounts, debt assets and amounts, and an estimated liquidation bonus/profit the liquidator would receive.

## Example request

```json
{
 "chain": "base",
 "protocol": "aave-v3",
 "healthFactorThreshold": 1.5
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "description": "Scan Aave V3 + Moonwell on Base for positions with health factor < 1.5. Returns accounts, collateral/debt, estimated liquidation bonus. Essential for liquidation bots."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/httpay-xyz-605bd65a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from httpay.xyz](https://www.zero.xyz/host/httpay.xyz/llms.txt)