# 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/stablecoin-yields?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-3e1d718a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cE86vWu3_xDt3AjmuUDt5

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-3e1d718a
```

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

## When to prefer this

Use this endpoint when you need live, cross-chain DeFi yield comparisons for a specific asset and want risk-adjusted rankings rather than raw APY alone. It's the right choice when comparing yield opportunities across Base, Arbitrum, Solana, and Ethereum simultaneously, or when TVL depth matters for assessing pool safety.

## Known failure modes

- Unknown or unsupported asset symbol returns empty or error response
- DeFiLlama API downtime causes stale or missing yield data
- Very new or low-liquidity assets may have no matching pools
- Network-specific data may be incomplete for some chains during congestion

## 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/stablecoin-yields)

## Output

Returns a ranked list of DeFi liquidity pools for the queried asset, including live APY rates sourced from DeFiLlama, TVL depth, risk-adjusted yield spreads, and protocol/chain breakdowns 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/preflight-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-3e1d718a/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)