# 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/yield-aggregator?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-582f0b95
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Onypy1tKRz2FRXWsffnaO

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-582f0b95
```

Example prompt: Scan all major DeFi pools for USDC and tell me which ones offer the best risk-adjusted yields right now, including TVL depth and APYs across Base, Arbitrum, Solana, and Ethereum.

## When to prefer this

Use this endpoint when you need a live, multi-chain view of DeFi yield opportunities for a specific asset and want risk-adjusted comparisons rather than raw APY alone. It is best suited for agents performing yield optimization, treasury management, or DeFi arbitrage research across Base, Arbitrum, Solana, and Ethereum simultaneously, leveraging DeFiLlama as the underlying data source.

## Known failure modes

- Missing or invalid asset symbol returns validation error
- Unrecognized asset ticker with no pool data returns empty results
- DeFiLlama upstream outage may cause stale or failed data fetch
- Payment failure via x402 prevents response
- Rate limiting may apply for rapid successive calls

## 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/yield-aggregator)

## Output

Returns a ranked list of DeFi liquidity pools for the specified asset, including live APY figures sourced from DeFiLlama, TVL depth metrics, risk-adjusted yield spreads, and chain identifiers (Base, Arbitrum, Solana, Ethereum) to help compare 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-582f0b95/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)