# 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 for a given asset symbol

## Facts

- Endpoint: GET https://preflight.agentdiet.dev/v1/apy-radar?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-72054cb5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DqTPptYvmzZg81_DGcJP9

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-72054cb5
```

Example prompt: Scan DeFiLlama for the best risk-adjusted yield pools for USDC across Base, Arbitrum, Solana, and Ethereum — I want to see which protocols are offering the highest APY with solid TVL depth right now.

## When to prefer this

Choose this endpoint when you need live, cross-chain DeFi yield intelligence for a specific asset and want risk-adjusted APY comparisons with TVL depth — particularly when spanning Base, Arbitrum, Solana, and Ethereum simultaneously. Prefer this over manual DeFiLlama browsing or single-chain yield aggregators when an AI agent needs structured, machine-readable yield data for automated portfolio decisions or treasury management.

## Known failure modes

- Missing or invalid asset symbol returns a validation error
- Unknown asset symbol with no matching pools returns empty results
- DeFiLlama data unavailability or stale feeds may produce outdated APY snapshots
- Rate limiting may occur if called at very high frequency
- Payment failure via x402 results in 402 response before data is returned

## 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/apy-radar)

## Output

Returns a ranked list of DeFi liquidity pools for the requested asset, including live APY rates sourced from DeFiLlama, TVL depth metrics, risk-adjusted yield spreads, protocol names, and the chains they operate on (Base, Arbitrum, Solana, Ethereum), enabling direct comparison of 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-72054cb5/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)