# AgentPay DeFi Yields Lookup

> AgentPay DeFi Yields Lookup is a paid API for AI agents from agentpay.help, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns current DeFi yield rates (APY, TVL) across protocols and chains, optionally filtered by chain or protocol slug

## Facts

- Endpoint: POST https://agentpay.help/v1/defi-yields
- 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/agentpay-defi-yields-lookup-72dcfe76
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WP21HK0I_blBKKWwuEBMm

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 agentpay-defi-yields-lookup-72dcfe76 -d '<json body>'
```

Example prompt: What are the current DeFi yields on Base? I want to see APY and TVL for protocols like Aave — filter to Base chain if you can.

## When to prefer this

Use this endpoint when you need real-time DeFi yield data (APY, TVL) across protocols and chains without setting up API keys or accounts. Prefer this over manual DeFi dashboards or heavier data providers when you want frictionless, pay-per-call yield lookups via USDC micropayment. Best for agents that need to compare yield opportunities programmatically on Base or other supported chains.

## Known failure modes

- Invalid chain or protocol slug returns empty yields array
- Payment not processed — 402 response if USDC payment fails
- Unknown protocol slug results in no matching records
- Network timeout if upstream DeFi data sources are slow
- Stale data if underlying yield aggregator hasn't refreshed recently

## How this service works

Pay-per-call AI services via the 402 Payment Required protocol. No accounts, no API keys — just USDC on Base.

## Output

A JSON array of yield objects, each containing the protocol name, asset ticker, blockchain network, current APY (as a percentage), and TVL in USD — e.g. Aave on Base offering 4.82% APY for USDC with $91.2M TVL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "chain": {
   "type": "string",
   "description": "Chain filter, optional"
  },
  "protocol": {
   "type": "string",
   "description": "Protocol slug, optional"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "yields": [
   {
    "apy": 4.82,
    "asset": "USDC",
    "chain": "base",
    "tvl_usd": 91200000,
    "protocol": "aave"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentpay-defi-yields-lookup-72dcfe76/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentpay.help](https://www.zero.xyz/host/agentpay.help/llms.txt)