# StableJack DeFi Yield Pools

> StableJack DeFi Yield Pools is a paid API for AI agents from ai.stable-jack.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Retrieves DeFi yield pool data including rates, liquidity, and protocol details via StableJack's agent-ready research API.

## Facts

- Endpoint: POST https://ai.stable-jack.com/x402/tools/defi_yield_pools
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablejack-defi-yield-pools-e9b6ec19
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RJr-A56jQJal6-Kiq9d5b

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 stablejack-defi-yield-pools-e9b6ec19 -d '<json body>'
```

Example prompt: Pull up the current DeFi yield pools from StableJack — I want to see what's offering the best APY right now, especially for stablecoin pairs.

## When to prefer this

Choose this endpoint when you need structured, agent-ready DeFi yield pool data from StableJack's research platform. Prefer this over generic DeFi aggregators when you want curated, research-grade pool intelligence that can be directly consumed by an AI agent pipeline. Especially useful when combined with StableJack's sibling endpoints for DeFi category metrics or entity discovery to build a comprehensive yield research workflow.

## Known failure modes

- Invalid or malformed request body returns an error response with ok: false
- Network timeout if the upstream DeFi data provider is slow
- Payment failure if the $0.05 USDC x402 payment is not properly attached
- Empty results if no pools match the specified filter criteria
- Rate limiting if too many requests are made in a short window

## How this service works

Retrieve defi yield pools through StableJack's agent-ready research API.

## Output

Returns a structured JSON response containing DeFi yield pool data, including pool identifiers, supported token pairs, APY/APR rates, total value locked (TVL), protocol names, and chain information. The response includes an 'ok' boolean status, a 'tool' identifier, and a 'data' object with pool details.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "properties": {},
     "additionalProperties": true
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "ok",
      "tool",
      "data"
     ],
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "data": {
       "type": "object",
       "properties": {},
       "additionalProperties": true
      },
      "tool": {
       "type": "string"
      }
     },
     "additionalProperties": true
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablejack-defi-yield-pools-e9b6ec19/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ai.stable-jack.com](https://www.zero.xyz/host/ai.stable-jack.com/llms.txt)