# santyvv DeFi Fees Data API

> santyvv DeFi Fees Data API is a paid API for AI agents from x402.santyvv.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).

Returns current DeFi protocol fee data via a keyless, pay-per-call USDC micro-payment on Base using the x402 protocol

## Facts

- Endpoint: GET https://x402.santyvv.com/api/defi/fees?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/santyvv-defi-fees-data-api-a432a3e2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5r6UV0jNXMGdV46hob-Dd

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 santyvv-defi-fees-data-api-a432a3e2
```

Example prompt: What are the current fees charged by major DeFi protocols — just pay the $0.01 USDC call fee and give me the normalized data.

## When to prefer this

Choose this endpoint when you need DeFi fee data without setting up an account or managing API keys, especially in agent workflows that support x402 micropayments on Base. Ideal for one-off or low-frequency lookups where subscription overhead is not justified, or when operating in a keyless, wallet-native environment.

## Known failure modes

- Payment not included or insufficient USDC — returns HTTP 402 Payment Required
- Invalid or malformed query parameters — returns 400 Bad Request
- Upstream data provider unavailable and all fallbacks exhausted — returns 503
- Rate or network congestion on Base causing payment confirmation delay — timeout or 504

## How this service works

Market and on-chain data, paid per call in USDC on Base through the x402 protocol. No accounts, no API keys. Sources are public data providers; the value added here is keyless access, edge caching, multi-source fallback and normalised responses.

## Output

A normalized JSON response containing current fee rates and structures for one or more DeFi protocols, sourced from public on-chain data providers with edge caching and multi-source fallback applied.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/santyvv-defi-fees-data-api-a432a3e2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.santyvv.com](https://www.zero.xyz/host/x402.santyvv.com/llms.txt)