# Aave v3 Flash Loan Routes on Base

> Aave v3 Flash Loan Routes on Base is a paid API for AI agents from auditor-x402.onrender.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-19).

Returns available flash-loan liquidity and fee rate for any Aave v3 listed asset on Base, read directly from on-chain data.

## Facts

- Endpoint: POST https://auditor-x402.onrender.com/api/flash-loan-routes?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aave-v3-flash-loan-routes-on-base-256e69a3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uoyiLdUKykcIKXKhNPJ-z

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 aave-v3-flash-loan-routes-on-base-256e69a3 -d '<json body>'
```

Example prompt: What's the available flash loan liquidity and fee for WETH on Aave v3 on Base right now? Check the on-chain data.

## When to prefer this

Use this endpoint when you need real-time, on-chain flash loan liquidity and fee data from Aave v3 on Base for a specific ERC-20 asset — particularly when planning arbitrage, liquidations, or collateral swaps that depend on flash loan availability and cost accuracy. Prefer this over off-chain oracles or cached data sources when freshness and on-chain truth matter.

## Known failure modes

- Asset not listed on Aave v3 Base — returns error or empty result
- Invalid ERC-20 address format — returns validation error
- On-chain RPC call failure — service may return 5xx or timeout
- Asset with zero liquidity — returns zero available amount
- Rate limiting or payment failure due to x402 micropayment issues

## How this service works

Aave v3 on Base: available flash-loan liquidity and flash-loan fee for any listed asset (default WETH), read on-chain.

## Output

Returns the available flash-loan liquidity (maximum borrowable amount) and the flash-loan fee (as a rate or basis points) for the requested asset on Aave v3 deployed on Base mainnet, sourced directly from on-chain contract reads.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "asset": {
   "type": "string",
   "description": "ERC-20 address (0x...) of the asset; default WETH"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aave-v3-flash-loan-routes-on-base-256e69a3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from auditor-x402.onrender.com](https://www.zero.xyz/host/auditor-x402.onrender.com/llms.txt)