# StableJack Predicted Funding Rates API

> StableJack Predicted Funding Rates API is a paid API for AI agents from ai.stable-jack.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns AI-predicted funding rates for crypto perpetual futures contracts via StableJack's agent-ready research API.

## Facts

- Endpoint: POST https://ai.stable-jack.com/x402/tools/predicted_funding_rates
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablejack-predicted-funding-rates-api-061ee08e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lcZD32KV7xvtLG4bim5kX

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-predicted-funding-rates-api-061ee08e -d '<json body>'
```

Example prompt: Can you pull the predicted funding rates for major crypto perpetuals from StableJack right now so I can see which assets are expected to have elevated or negative funding?

## When to prefer this

Choose this endpoint when you need forward-looking, AI-predicted funding rates rather than historical or real-time spot rates. Ideal for agents building delta-neutral strategies, carry trade signals, or market sentiment dashboards based on perpetual futures. Prefer over generic crypto data APIs when you need predictive rather than descriptive funding rate data, and when you want a research-grade signal from StableJack's model rather than raw exchange feeds.

## Known failure modes

- Invalid or unsupported asset symbol returns an error or empty result
- Stale prediction data if the model has not been recently updated
- Payment failure (x402 protocol issue) results in 402 response with no data
- Rate limiting if too many calls are made in quick succession
- Network timeout if the upstream model inference takes too long

## How this service works

Retrieve predicted funding rates through StableJack's agent-ready research API.

## Output

Returns predicted funding rates for one or more cryptocurrency perpetual futures contracts, including the asset identifier, the forecasted funding rate value, and associated metadata such as direction and confidence, enabling agents to assess carry cost, market sentiment, and arbitrage opportunities.

## 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-predicted-funding-rates-api-061ee08e/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)