# x402 Data Hub v2 - Best Yield Pools

> x402 Data Hub v2 - Best Yield Pools is a paid API for AI agents from x402-data-hub-v2.vercel.app, paid per call via x402, $0.12/call, status unknown (last checked 2026-10-21).

Returns the highest-yielding DeFi liquidity pools filtered by blockchain network and stablecoin preference

## Facts

- Endpoint: POST https://x402-data-hub-v2.vercel.app/api/yield/best-pools?utm_source=zero.xyz
- Price: $0.12/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-data-hub-v2-best-yield-pools-beada1c7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yDUaiskzeUIPXX8Vi_twn

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 x402-data-hub-v2-best-yield-pools-beada1c7 -d '<json body>'
```

Example prompt: What are the best yield pools available on Ethereum right now? I only want stablecoin pools — show me the top options by APY.

## When to prefer this

Use this endpoint when an agent needs to discover and rank DeFi yield opportunities across chains, especially when filtering to stablecoin-only pools or a specific network like Ethereum or Base. Prefer this over manual on-chain queries when you need aggregated, ranked pool data in a single call.

## Known failure modes

- Invalid chain name returns empty results or error
- No pools match the combined chain + stablecoin filter
- Payment of 0.12 USDC not processed — 402 response returned
- Upstream data source unavailable — stale or missing pool data
- Malformed request body causes 400 validation error

## How this service works

16 paid endpoints - Crypto, Exchange, Yield, Governance, Sentiment

## Output

A ranked list of the best-performing DeFi liquidity pools matching the filter criteria, including pool name, protocol, APY/yield rate, chain, and relevant pool details for investment decision-making.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "chain": {
   "type": "string",
   "description": "Filter by chain (e.g. Ethereum, Base)"
  },
  "stablecoin": {
   "type": "boolean",
   "description": "Filter stablecoin pools only"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-data-hub-v2-best-yield-pools-beada1c7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-data-hub-v2.vercel.app](https://www.zero.xyz/host/x402-data-hub-v2.vercel.app/llms.txt)