# x402-free-Hub Stablecoin Yield API

> x402-free-Hub Stablecoin Yield API is a paid API for AI agents from x402-free-hub.vercel.app, paid per call via x402, $0.08/call, status unknown (last checked 2026-10-11).

Returns current stablecoin yield rates and APY data for DeFi protocols via a pay-per-call x402 endpoint

## Facts

- Endpoint: POST https://x402-free-hub.vercel.app/api/yield/stablecoin?utm_source=zero.xyz
- Price: $0.08/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-free-hub-stablecoin-yield-api-c01c1e65
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7xxoyF3hRIUYpYBTpkyAO

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-free-hub-stablecoin-yield-api-c01c1e65 -d '<json body>'
```

Example prompt: What are the current APY rates for stablecoins like USDC and USDT across major DeFi protocols — I want to find the best yield option available right now?

## When to prefer this

Use this endpoint when you need current stablecoin yield/APY data from DeFi protocols and are comfortable with x402 micropayment-based access at $0.08 USDC per call; prefer this over free alternatives when you need reliable, aggregated yield data without API key management

## Known failure modes

- Missing or invalid stablecoin symbol returns 400 error
- Payment not included or insufficient USDC returns 402 Payment Required
- Upstream data source unavailable causes 503 or stale data
- Unknown protocol or chain identifier causes empty result set

## How this service works

12 paid endpoints - Yield, Governance, Sentiment (all free APIs)

## Output

Returns current yield/APY data for stablecoins across DeFi protocols, including rate percentages and protocol-level breakdown

## Request schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-free-hub-stablecoin-yield-api-c01c1e65/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-free-hub.vercel.app](https://www.zero.xyz/host/x402-free-hub.vercel.app/llms.txt)