# BaseBuilder DeFi Yield Hunting

> BaseBuilder DeFi Yield Hunting is a paid API for AI agents from bb-defi.vercel.app, paid per call via x402, $0.143132/call, status unknown (last checked 2026-09-15).

Searches and ranks DeFi yield opportunities across protocols to identify the best current returns for a given asset or risk profile

## Facts

- Endpoint: POST https://bb-defi.vercel.app/api/defi/yield-hunting
- Price: $0.143132/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/basebuilder-defi-yield-hunting-c5adaf3f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8XqXprrCWBVMf78iCz6Mv

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 basebuilder-defi-yield-hunting-c5adaf3f -d '<json body>'
```

Example prompt: Find me the best yield-hunting opportunities for USDC on Base chain right now — show me pools with at least 8% APY and low risk.

## When to prefer this

Use this endpoint when an agent needs to discover and compare current DeFi yield opportunities across multiple protocols on Base chain, especially when the user wants to maximize returns on a specific asset or stay within a risk tolerance. Prefer over manual protocol browsing or single-protocol APY queries.

## Known failure modes

- No pools found matching the given APY threshold or risk filter — returns empty result set
- Invalid or unsupported token/asset symbol — returns 400 error
- Chain or protocol not supported — returns 400 or empty list
- Payment not processed — returns 402 Payment Required
- Upstream protocol data unavailable — returns 503 or stale data warning

## How this service works

BaseBuilder Defi API hub - 22 paid endpoints

## Output

A ranked list of DeFi yield opportunities including protocol names, pool addresses, APY rates, risk scores, and chain details matching the requested asset and risk criteria.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/basebuilder-defi-yield-hunting-c5adaf3f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bb-defi.vercel.app](https://www.zero.xyz/host/bb-defi.vercel.app/llms.txt)