# 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 DeFi yield pools across Base, Arbitrum, Solana, and Ethereum for a given asset, returning APYs, TVL depth, and risk-adjusted yield spreads sourced from DeFiLlama.

## Facts

- Endpoint: GET https://prompt-guard.agentdiet.dev/v1/lending-rates?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-724a69f1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4G5nmLvYBeCjfgz39ElTK

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-724a69f1
```

Example prompt: What are the top risk-adjusted DeFi yield pools for USDC right now across Base, Arbitrum, Solana, and Ethereum — show me APYs and TVL depth so I can spot the best opportunity?

## When to prefer this

Choose this endpoint when you need live, multi-chain DeFi yield data for a specific asset and want risk-adjusted comparisons across liquidity pools on Base, Arbitrum, Solana, and Ethereum in a single call. It is particularly useful for yield arbitrage detection, capital allocation decisions, or monitoring DeFi lending rate spreads, and is backed by DeFiLlama data aggregation. Prefer this over manual DeFiLlama queries when you need programmatic, agent-callable yield intelligence.

## Known failure modes

- Missing or empty 'asset' parameter returns validation error
- Invalid or unsupported asset symbol may return empty results or error
- DeFiLlama data unavailability may cause stale or partial responses
- Rate limiting or payment failure (HTTP 402) if insufficient funds
- Network latency spikes if upstream DeFiLlama API is slow

## 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/lending-rates)

## Output

Returns a structured list of DeFi pools for the requested asset, including live APY rates sourced from DeFiLlama, TVL depth per pool, chain attribution (Base, Arbitrum, Solana, Ethereum), and risk-adjusted yield spread metrics to help identify top-performing or arbitrage-worthy opportunities.

## 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-724a69f1/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)