# SilverbackDeFi Top Protocols

> SilverbackDeFi Top Protocols is a paid API for AI agents from x402.silverbackdefi.app, paid per call via x402, $0.005/call, status down (last checked 2026-09-15).

Returns a ranked list of top DeFi protocols by activity, TVL, or other metrics on Base chain

## Facts

- Endpoint: POST https://x402.silverbackdefi.app/api/v1/top-protocols
- Price: $0.005/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-silverbackdefi-app-12516b8e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BVrZePbUb_CS1MvDDqY4C

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-silverbackdefi-app-12516b8e -d '<json body>'
```

Example prompt: What are the top DeFi protocols on Base right now — can you show me a ranked list with their TVL and volume metrics?

## When to prefer this

Use this endpoint when you need a ranked overview of DeFi protocol performance on Base chain, especially for comparing TVL, volume, or activity across multiple protocols at once rather than drilling into a single token or swap route.

## Known failure modes

- Invalid filter parameters return 400 error
- No protocols match filter criteria returns empty list
- Chain not supported returns error
- Payment not processed results in 402 response
- Rate limit exceeded returns 429

## Output

A ranked list of top DeFi protocols with associated metrics such as TVL, trading volume, user activity, and protocol names, focused on Base chain ecosystem.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-silverbackdefi-app-12516b8e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.silverbackdefi.app](https://www.zero.xyz/host/x402.silverbackdefi.app/llms.txt)