# ExchangeRebel Funding Rate — BTCUSDT

> ExchangeRebel Funding Rate — BTCUSDT is a paid API for AI agents from exchangerebel.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-13).

Returns the current perpetual futures funding rate for BTCUSDT from ExchangeRebel

## Facts

- Endpoint: GET https://exchangerebel.com/toll/funding/funding/BTCUSDT?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/exchangerebel-funding-rate-btcusdt-5e4dec96
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sLUmUu2sUg5yYzRpTsafB

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 exchangerebel-funding-rate-btcusdt-5e4dec96
```

Example prompt: What's the current funding rate for the BTCUSDT perpetual futures contract right now? I want to know if it's positive or negative before I open a position.

## When to prefer this

Use this endpoint when you need the real-time BTCUSDT perpetual futures funding rate and want a lightweight, pay-per-call REST lookup without managing exchange API keys or WebSocket connections. Prefer this over direct exchange APIs when you need a simple HTTP GET abstraction with micropayment access. Best suited for spot checks, arbitrage scouts, and funding-cost estimations rather than high-frequency streaming use cases.

## Known failure modes

- Invalid or unsupported trading pair returns an error or empty response
- Network timeout if exchange data source is temporarily unavailable
- Stale funding rate data if the upstream exchange feed is delayed
- Rate limit exceeded if too many requests are made in a short window
- Payment not processed (x402 payment required error if USDC payment fails)

## How this service works

funding-rate

## Output

Returns the current funding rate for the BTCUSDT perpetual futures pair, typically including the rate value (as a decimal or percentage), the symbol, and a timestamp or next funding interval. Useful for assessing carry cost of holding a leveraged perpetual position.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object"
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/exchangerebel-funding-rate-btcusdt-5e4dec96/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from exchangerebel.com](https://www.zero.xyz/host/exchangerebel.com/llms.txt)