# 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/pendle-pt-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-526a42cb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ctx4ynu8nxzjpGn6jKyvi

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-526a42cb
```

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

## When to prefer this

Choose this endpoint when an agent needs live, multi-chain DeFi yield data for a specific asset and wants risk-adjusted comparisons rather than raw APY alone. It is best suited for yield optimization workflows, portfolio rebalancing decisions, or DeFi arbitrage scanning where TVL depth and cross-chain coverage (Base, Arbitrum, Solana, Ethereum) matter. Prefer this over generic price feeds or single-chain yield trackers when the user wants a ranked, risk-aware view of the DeFi yield landscape.

## Known failure modes

- Missing required 'asset' parameter returns a validation error
- Unrecognized or unsupported asset symbol may return empty results or an error
- DeFiLlama upstream data unavailability may cause stale or failed responses
- Network timeouts if upstream data aggregation is slow
- Payment failure via x402 micropayment protocol blocks the request

## 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/pendle-pt-yields)

## Output

Returns a structured object containing ranked DeFi pool results for the queried asset, including live APY figures sourced from DeFiLlama, TVL depth metrics, risk-adjusted yield spreads, and chain identifiers (Base, Arbitrum, Solana, Ethereum) to help the agent identify the highest-quality 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-526a42cb/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)