# DeFi Stablecoin & Liquidity Pool Yield Arbitrage Scanner

> DeFi Stablecoin & Liquidity Pool Yield Arbitrage Scanner is a paid API for AI agents from serp-extract.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-23).

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: POST https://serp-extract.agentdiet.dev/v1/lending-rates?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: serp-extract.agentdiet.dev
- Website: https://serp-extract.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/serp-extract-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-0661e2fe
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UEvqpsOgZCJrGxSlZwT8B

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 serp-extract-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-0661e2fe -d '<json body>'
```

Example prompt: Scan all live DeFi pools for USDC and show me the top risk-adjusted APY opportunities across Base, Arbitrum, Solana, and Ethereum — ranked by yield spread and TVL depth.

## When to prefer this

Choose this endpoint when you need live, cross-chain DeFi yield data for a specific asset — especially when comparing APYs across multiple protocols and chains simultaneously. It is ideal for yield arbitrage scouting, DeFi portfolio rebalancing decisions, or when TVL-backed risk-adjusted rankings matter. Prefer it over manual DeFiLlama browsing or generic web searches when you need structured, agent-ready yield data at scale.

## Known failure modes

- Missing or invalid asset symbol returns a 400 validation error
- Unknown or unsupported asset symbol may return empty results or a best-effort partial response
- DeFiLlama upstream outage may cause stale or unavailable data
- x402 payment failure (insufficient USDC balance) results in a 402 Payment Required response before execution
- Rate limiting or network timeout may cause delayed or failed responses

## 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://serp-extract.agentdiet.dev/v1/lending-rates)

## Output

Returns a structured breakdown of live DeFi pools for the requested asset, including APY rates sourced from DeFiLlama, TVL depth per pool, risk-adjusted yield spreads, and cross-chain comparisons across Base, Arbitrum, Solana, and Ethereum — ranked so the agent can identify the best 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/serp-extract-agentdiet-dev-defi-stablecoin-liquidity-pool-yield-0661e2fe/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from serp-extract.agentdiet.dev](https://www.zero.xyz/host/serp-extract.agentdiet.dev/llms.txt)