# DeFi Stablecoin & Liquidity Pool Yield Arbitrage Scanner

> DeFi Stablecoin & Liquidity Pool Yield Arbitrage Scanner is a paid API for AI agents from preflight.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://preflight.agentdiet.dev/v1/cross-chain-apy-scanner?utm_source=zero.xyz
- Price: $0.015/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: preflight.agentdiet.dev
- Website: https://preflight.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/preflight-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-aa720970
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DGz7B36X-XWONxhGT74PF

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 preflight-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-aa720970
```

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

## When to prefer this

Use this endpoint when you need real-time, cross-chain DeFi yield comparisons for a specific asset and want risk-adjusted rankings rather than raw APY. It aggregates DeFiLlama data across Base, Arbitrum, Solana, and Ethereum in a single call, making it ideal for autonomous yield optimization agents, treasury management bots, or any workflow that needs to identify the best current liquidity pool opportunities without manually querying each chain.

## Known failure modes

- Unknown or unsupported asset symbol returns empty results or error
- DeFiLlama data unavailable causes stale or missing APY data
- Very low-liquidity assets may return few or no pools
- Network timeouts on real-time data fetch
- Invalid asset parameter format returns 400 validation error

## 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://preflight.agentdiet.dev/v1/cross-chain-apy-scanner)

## Output

Returns a ranked list of DeFi liquidity pools for the requested asset, including live APY rates sourced from DeFiLlama, TVL depth, chain identifiers (Base, Arbitrum, Solana, Ethereum), and risk-adjusted yield spreads to help identify the best yield 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/preflight-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-aa720970/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from preflight.agentdiet.dev](https://www.zero.xyz/host/preflight.agentdiet.dev/llms.txt)