# DeFi Stablecoin & Liquidity Pool Yield Arbitrage Scanner

> DeFi Stablecoin & Liquidity Pool Yield Arbitrage Scanner is a paid API for AI agents from hn-pulse.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-23).

Scans live DeFiLlama APYs, TVL depth, and risk-adjusted yield spreads across Base, Arbitrum, Solana, and Ethereum pools for a given asset symbol.

## Facts

- Endpoint: POST https://hn-pulse.agentdiet.dev/v1/aave-v3-yields?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: hn-pulse.agentdiet.dev
- Website: https://hn-pulse.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/hn-pulse-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-arbitrage-bb64e00a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UW_D9shfinHFLbQd9kYZv

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 hn-pulse-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-arbitrage-bb64e00a -d '<json body>'
```

Example prompt: What are the top risk-adjusted DeFi yield pools for USDC right now across Base, Arbitrum, Solana, and Ethereum — including APY and TVL depth?

## When to prefer this

Choose this endpoint when you need real-time, multi-chain DeFi yield data for a specific asset and want risk-adjusted APY comparisons across major protocols and chains (Base, Arbitrum, Solana, Ethereum). Prefer this over general DeFi dashboards when an AI agent needs structured, actionable yield arbitrage data programmatically, especially for USDC, ETH, SOL, or WBTC. Best suited for treasury optimization, yield farming automation, or pre-deployment pool scouting.

## Known failure modes

- Invalid or unrecognized asset symbol returns an error or empty results
- DeFiLlama API downtime may cause stale or unavailable yield data
- Very low-liquidity assets may return few or no matching pools
- Payment not processed (HTTP 402) if x402 payment header is missing or invalid
- Rate limiting if the same asset is queried too rapidly without an Idempotency-Key

## How this service works

Scans live DeFiLlama APYs, TVL depth, and risk-adjusted yield spreads across Base, Arbitrum, Solana, and Ethereum pools. (Live x402 v2, IETF MPP & MCP endpoint at https://hn-pulse.agentdiet.dev/v1/aave-v3-yields)

## Output

Returns a structured object containing ranked DeFi liquidity pool data for the queried asset, including live APY rates sourced from DeFiLlama, TVL depth per pool, risk-adjusted yield spreads, and pool metadata across Base, Arbitrum, Solana, and Ethereum.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "asset"
 ],
 "properties": {
  "asset": {
   "type": "string",
   "minLength": 1,
   "description": "Target asset symbol (e.g. USDC, ETH, SOL, WBTC) to scan for top risk-adjusted DeFi yield pools"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hn-pulse-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-arbitrage-bb64e00a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hn-pulse.agentdiet.dev](https://www.zero.xyz/host/hn-pulse.agentdiet.dev/llms.txt)