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

## Facts

- Endpoint: GET https://prompt-guard.agentdiet.dev/v1/stablecoin-yields?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-1351b57d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qhO8D7aLw1AIBGsY9kkx9

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-1351b57d
```

Example prompt: Scan live DeFi pools for the best risk-adjusted USDC yields right now — show me the top APYs, TVL depth, and yield spreads across Base, Arbitrum, Solana, and Ethereum.

## When to prefer this

Use this endpoint when an agent or user needs live, cross-chain DeFi yield data for a specific asset and wants risk-adjusted comparisons across multiple protocols simultaneously. Prefer this over manual DeFiLlama browsing when automation or agent-driven portfolio optimization is required. Ideal for treasury management, yield farming bots, or any workflow that needs structured APY and TVL data programmatically.

## Known failure modes

- Missing or invalid asset symbol returns a validation error
- DeFiLlama data unavailability or rate limiting may cause stale or empty results
- Unsupported asset symbols with no active pools return empty result sets
- Network timeouts if upstream DeFiLlama API is slow or down
- Payment not processed (HTTP 402) if USDC micropayment is not included

## 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/stablecoin-yields)

## Output

Returns a ranked list of DeFi liquidity pools for the specified asset, including live APYs sourced from DeFiLlama, TVL depth per pool, risk-adjusted yield spreads, and which blockchain network each pool operates on (Base, Arbitrum, Solana, Ethereum). Enables direct comparison of yield opportunities across protocols and 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/prompt-guard-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-1351b57d/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)