# 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, $0.015/call, status unknown (last checked 2026-10-21).

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

## Facts

- Endpoint: GET https://hn-pulse.agentdiet.dev/v1/defi-apy?utm_source=zero.xyz
- Price: $0.015/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- 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-284bc5bb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fcYjILBlhKiMW38vXU6Nb

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-284bc5bb
```

Example prompt: Scan the top risk-adjusted DeFi yield pools for USDC right now across Base, Arbitrum, Solana, and Ethereum — show me the best APYs and TVL depth so I can decide where to deploy liquidity.

## When to prefer this

Choose this endpoint when you need real-time, cross-chain DeFi yield data aggregated from DeFiLlama for a specific asset, particularly when comparing risk-adjusted APYs and TVL depth across Base, Arbitrum, Solana, and Ethereum simultaneously. Prefer this over manual DeFiLlama browsing or single-chain yield tools when an agent needs programmatic, per-asset pool rankings in one call.

## Known failure modes

- Missing or empty 'asset' parameter returns a validation error
- Unknown or unsupported asset symbol returns empty results or error
- DeFiLlama upstream outage may cause stale or unavailable data
- Rate limiting or payment failure (HTTP 402) if USDC micropayment is not processed
- Pools with very low TVL may be filtered or marked as high-risk

## 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/defi-apy)

## Output

Returns a structured object containing ranked DeFi liquidity pools for the queried asset, including live APY rates sourced from DeFiLlama, TVL depth per pool, chain identifiers (Base, Arbitrum, Solana, Ethereum), protocol names, and risk-adjusted yield spread metrics to help compare opportunities across chains.

## 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-284bc5bb/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)