# DeFi Stablecoin & Liquidity Pool Yield Arbitrage Scanner

> DeFi Stablecoin & Liquidity Pool Yield Arbitrage Scanner is a paid API for AI agents from prompt-guard.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 for a given asset across Base, Arbitrum, Solana, and Ethereum liquidity pools.

## Facts

- Endpoint: GET https://prompt-guard.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: prompt-guard.agentdiet.dev
- Website: https://prompt-guard.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/prompt-guard-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-976e6695
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yROXVp12PMt2zCamIlXjR

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 prompt-guard-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-976e6695
```

Example prompt: Scan all live DeFi liquidity pools for USDC and show me the top risk-adjusted APY opportunities across Base, Arbitrum, Solana, and Ethereum right now.

## When to prefer this

Choose this endpoint when you need real-time, cross-chain DeFi yield data for a specific asset and want risk-adjusted APY comparisons with TVL context rather than raw APY alone. Prefer it over manual DeFiLlama browsing when an agent needs to programmatically identify the best yield opportunity across multiple chains simultaneously.

## Known failure modes

- Missing or invalid asset symbol returns a validation error
- DeFiLlama data unavailability may result in stale or empty pool data
- Unknown asset tickers (e.g. obscure micro-cap tokens) may return no results
- Network timeouts if live chain data is slow to respond
- Payment failure via x402 may block access to the endpoint

## 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://prompt-guard.agentdiet.dev/v1/defi-apy)

## Output

Returns a ranked list of DeFi liquidity pools for the queried asset, including APY figures sourced from DeFiLlama, TVL depth, chain information, protocol name, and risk-adjusted yield spreads 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/prompt-guard-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-976e6695/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from prompt-guard.agentdiet.dev](https://www.zero.xyz/host/prompt-guard.agentdiet.dev/llms.txt)