# Aave v3 Base Reserve Rates (Supply & Borrow APY)

> Aave v3 Base Reserve Rates (Supply & Borrow APY) is a paid API for AI agents from auditor-x402.onrender.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-30).

Returns live on-chain supply APY and variable borrow APY for any Aave v3 listed asset on Base mainnet, defaulting to WETH.

## Facts

- Endpoint: POST https://auditor-x402.onrender.com/api/aave-yield?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aave-v3-base-reserve-rates-supply-borrow-apy-3ab6b9b3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0ymGUw9l5OR3G-PdVlPn8

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-base-reserve-rates-supply-borrow-apy-3ab6b9b3 -d '<json body>'
```

Example prompt: What's the current Aave v3 supply APY and variable borrow APY for WETH on Base right now?

## When to prefer this

Use this endpoint when you need real-time, on-chain Aave v3 lending and borrowing rates specifically on Base mainnet. Prefer it over off-chain oracle or aggregator APIs when you need rates directly from the protocol contracts. Ideal for yield bots, borrow-cost calculators, and DeFi portfolio agents that need live APY data per asset.

## Known failure modes

- Asset address not listed on Aave v3 Base — returns error or empty rates
- Invalid or malformed ERC-20 address — validation error
- RPC node timeout or Base network congestion causing delayed response
- Asset address is valid ERC-20 but has zero liquidity / not yet active in Aave v3

## How this service works

Live Aave v3 reserve rates on Base read on-chain: current supply APY and variable borrow APY for any listed asset (default WETH). For yield and borrow-cost bots.

## Output

Returns the current supply APY (annualized yield for depositors) and variable borrow APY (annualized cost for borrowers) for the specified ERC-20 asset in Aave v3 on Base, read directly from on-chain reserve data.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aave-v3-base-reserve-rates-supply-borrow-apy-3ab6b9b3/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)