# StableJack Funding Rate History

> StableJack Funding Rate History 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).

Retrieves historical perpetual funding rate data for crypto assets via StableJack's agent-ready research API.

## Facts

- Endpoint: POST https://ai.stable-jack.com/x402/tools/funding_rate_history
- 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-funding-rate-history-82b247e2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hW0sz-2eYkEtj3yfGb3nX

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-funding-rate-history-82b247e2 -d '<json body>'
```

Example prompt: Pull the funding rate history for BTC-PERP on Binance for the last 30 days from StableJack so I can see how rates have trended.

## When to prefer this

Choose this endpoint when you need historical funding rate time-series data for crypto perpetuals, particularly for quantitative research, backtesting carry trades, or analyzing market sentiment via funding rate trends. It is purpose-built for agent workflows and priced per call via x402.

## Known failure modes

- Unsupported asset symbol returns an error or empty dataset
- Invalid time range or out-of-bounds dates result in no data
- Missing required parameters (symbol, exchange) cause a validation error
- Rate limiting or payment failure at $0.05 USDC per call may block response
- Exchange not supported by StableJack returns an error

## How this service works

Retrieve funding rate history through StableJack's agent-ready research API.

## Output

Returns a time-series of historical funding rate data for the requested perpetual asset, including timestamps, rate values, and relevant exchange or protocol metadata.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablejack-funding-rate-history-82b247e2/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)