# 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 across Base, Arbitrum, Solana, and Ethereum pools for a given asset symbol.

## Facts

- Endpoint: GET https://preflight.agentdiet.dev/v1/lp-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-2bbee368
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tZ3hJbkhUmTiFkmYTOCzA

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-2bbee368
```

Example prompt: Scan across Ethereum, Arbitrum, Base, and Solana and show me the best risk-adjusted liquidity pool yields for USDC right now, including APY and TVL depth.

## When to prefer this

Choose this endpoint when you need live, cross-chain DeFi yield intelligence for a specific asset — particularly for comparing APYs and TVL depth across Base, Arbitrum, Solana, and Ethereum simultaneously. It is ideal for yield optimization agents, DeFi treasury managers, or arbitrage scouts that need risk-adjusted spread data rather than raw APYs alone. Prefer it over manual DeFiLlama browsing or single-chain lookups when a consolidated, agent-ready ranked output is needed.

## Known failure modes

- Unknown or unsupported asset symbol returns empty results or error
- DeFiLlama data temporarily unavailable causes stale or failed response
- Very low-TVL or obscure assets may return sparse pool data
- Payment failure via x402 results in 402 response with no data
- Malformed asset string (e.g. empty or special characters) triggers 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/lp-apy-scanner)

## Output

Returns a ranked list of DeFi liquidity pools for the requested asset, including live APY rates sourced from DeFiLlama, TVL depth figures, risk-adjusted yield spreads, and pool metadata 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-2bbee368/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)