# DeFi Yield & APY Pool Lookup

> DeFi Yield & APY Pool Lookup is a paid API for AI agents from api.kadec0.xyz, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-16).

Fetches top yield-farming pools with APY, TVL, chain, project, and asset data from DefiLlama, filterable by chain, project, symbol, and stablecoin status.

## Facts

- Endpoint: GET https://api.kadec0.xyz/v1/yield-pools
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/defi-yield-apy-pool-lookup-21a107aa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MSnGZ7P7CsYETbXE4Cd6X

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 defi-yield-apy-pool-lookup-21a107aa
```

Example prompt: Show me the top 20 stablecoin yield pools on Ethereum with at least 5% APY and at least $5 million TVL — I want to see which DeFi projects are offering the best returns right now.

## When to prefer this

Use this endpoint when you need live DeFi yield pool data aggregated across chains and protocols, especially when filtering for stablecoin-only pools or comparing APY/TVL across projects like Aave, Lido, or Uniswap. Prefer this over manual DefiLlama queries when you need structured, filterable JSON output for agent workflows.

## Known failure modes

- Invalid chain name returns empty results or 400 error
- minApy or minTvl filters too restrictive return empty pool list
- Unknown project slug returns no results
- Rate limiting or payment failure returns 402 if USDC payment not attached
- Upstream DefiLlama API outage may cause 503 or stale data

## How this service works

DeFi yield and APY across pools. Returns the top yield-farming pools via DefiLlama with current APY, base and reward APY split, TVL, chain, and project, filterable by chain, project, symbol, stablecoin-only, minimum TVL, and minimum APY. For yield discovery and comparing APY across protocols. Keyless.

## Output

A list of yield-farming pools (up to maxItems, default 25) each containing APY percentage, TVL in USD, blockchain chain, project name (e.g. aave-v3), and asset/pool symbol — sourced from DefiLlama and filterable by chain, stablecoin type, minimum APY, minimum TVL, symbol substring, and project name.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "chain": {
       "type": "string",
       "description": "e.g. Ethereum|Arbitrum|Solana"
      },
      "minApy": {
       "type": "string",
       "default": "0"
      },
      "minTvl": {
       "type": "string",
       "default": "1000000"
      },
      "symbol": {
       "type": "string",
       "description": "pool symbol substring, e.g. USDC|ETH"
      },
      "project": {
       "type": "string",
       "description": "e.g. aave-v3|lido|uniswap-v3"
      },
      "maxItems": {
       "type": "string",
       "default": "25"
      },
      "stablecoin": {
       "type": "string",
       "description": "true -> stablecoin pools only"
      },
      "stablecoinOnly": {
       "type": "string",
       "description": "Alias for stablecoin; stablecoin takes precedence if both are supplied"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/defi-yield-apy-pool-lookup-21a107aa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.kadec0.xyz](https://www.zero.xyz/host/api.kadec0.xyz/llms.txt)