# DeFi Signals – Perpetual Funding Rates

> DeFi Signals – Perpetual Funding Rates is a paid API for AI agents from defi-signals.org, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).

Returns cross-venue perpetual futures funding rates for a given token, including per-venue annualized rates and an arbitrage spread signal between venues.

## Facts

- Endpoint: GET https://defi-signals.org/defi/funding-rates
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/defi-signals-perpetual-funding-rates-b4960337
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EX5jsPDbMiTWlzwbxQ931

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-signals-perpetual-funding-rates-b4960337
```

Example prompt: What are the current perpetual funding rates for ETH across all venues, and is there a meaningful arbitrage spread between them?

## When to prefer this

Choose this endpoint when you need real-time, cross-venue perpetual futures funding rates with a pre-computed arbitrage spread signal, especially if you are running an AI agent that needs to make funding-rate-aware trading decisions or monitor arb opportunities without building your own aggregation layer. It is priced per call at $0.005 USDC via x402, making it cost-effective for on-demand queries rather than continuous streaming.

## Known failure modes

- Unsupported or misspelled token symbol returns empty venues array or error
- Payment failure (insufficient USDC or x402 handshake failure) blocks access
- Stale data if upstream venue APIs are temporarily unavailable
- Rate or quota limits may apply if too many calls are made rapidly
- Network timeout if the endpoint is slow to aggregate cross-venue data

## How this service works

Cross-venue perpetual funding rates (OKX, Kraken Futures, dYdX) for any major token. Per-venue annualized rates plus the cross-venue spread in percentage points — a ready-to-use funding arbitrage signal. Clean JSON for trading and research agents.

## Output

A JSON object containing the token symbol, a UTC timestamp for the data snapshot, a list of venues each with their raw funding rate, annualized percentage rate, and interval hours, plus a cross-venue annualized spread in percentage points that serves as an arbitrage signal.

## 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",
     "properties": {
      "symbol": {
       "type": "string",
       "description": "Token symbol, e.g. BTC, ETH, SOL"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "as_of": "2026-07-15T08:00:00Z",
  "symbol": "BTC",
  "venues": [
   {
    "rate": 0.0000795,
    "venue": "okx",
    "annualized_pct": 8.71,
    "interval_hours": 8
   }
  ],
  "spread_annualized_pp": 5.87
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/defi-signals-perpetual-funding-rates-b4960337/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from defi-signals.org](https://www.zero.xyz/host/defi-signals.org/llms.txt)