# 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/lending-rates?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-f0d96f0b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__8ZTKjRW5o7U6gj9aApvU

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-f0d96f0b
```

Example prompt: What are the top risk-adjusted DeFi yield pools for USDC right now — scan across Base, Arbitrum, Solana, and Ethereum and rank them by APY and TVL depth.

## When to prefer this

Choose this endpoint when you need live, multi-chain DeFi yield comparison for a specific asset and want risk-adjusted APY rankings backed by TVL depth data from DeFiLlama. It is ideal for yield arbitrage workflows, DeFi portfolio allocation decisions, or monitoring lending rate spreads across Base, Arbitrum, Solana, and Ethereum in a single call.

## Known failure modes

- Missing or invalid asset symbol returns a validation error
- Unknown or unsupported asset ticker returns empty results or error
- DeFiLlama data feed latency may cause stale APY snapshots
- Payment required (HTTP 402) if x402 micropayment not provided
- Low-TVL pools may appear with unreliable APY spikes

## 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/lending-rates)

## Output

Returns a structured list of DeFi liquidity pools for the specified asset, including live APY rates sourced from DeFiLlama, TVL depth figures, chain identifiers (Base, Arbitrum, Solana, Ethereum), protocol names, and risk-adjusted yield spread comparisons — enabling direct yield arbitrage decision-making.

## 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-f0d96f0b/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)