# RagRadar DeFi Best Yields by Asset

> RagRadar DeFi Best Yields by Asset is a paid API for AI agents from ragradar.space, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns the best DeFi yield opportunities for a specified asset across Base, Arbitrum, and Solana

## Facts

- Endpoint: GET https://ragradar.space/api/yields/best/%7Basset%7D
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ragradar-defi-best-yields-by-asset-b4b4e27e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7i02bFjhYI9tAsRirfIKM

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 ragradar-defi-best-yields-by-asset-b4b4e27e
```

Example prompt: What are the best DeFi yield opportunities available right now for USDC across Base, Arbitrum, and Solana — I want to know which protocol and chain gives the highest APY.

## When to prefer this

Use this endpoint when you need to compare yield opportunities for a specific crypto asset across multiple chains (Base, Arbitrum, Solana) simultaneously. Prefer this over single-chain yield trackers when multi-chain comparison is needed, or when looking for the best current DeFi return rather than historical data.

## Known failure modes

- Unknown or unsupported asset symbol returns empty results or error
- Network congestion may cause stale yield data
- Asset with no active pools returns no results
- Invalid asset parameter format returns 400-level error
- Payment not completed results in 402 response

## How this service works

On-chain intelligence for AI agents. 73+ endpoints across Base, Arbitrum, Solana. x402 micropayments.

## Output

A JSON response listing the top DeFi yield opportunities for the requested asset, including protocol names, chains, and APY rates, ranked by best return.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "status": "ok"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ragradar-defi-best-yields-by-asset-b4b4e27e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ragradar.space](https://www.zero.xyz/host/ragradar.space/llms.txt)