# Nami Cross-Venue Funding Rate Spread

> Nami Cross-Venue Funding Rate Spread is a paid API for AI agents from api.usenami.io, paid per call via x402, $0.001000/call, status unknown (last checked 2026-09-14).

Returns the highest and lowest funding rate venues for a given perpetual ticker, along with the spread in basis points across all tracked venues

## Facts

- Endpoint: GET https://api.usenami.io/v1/perp/funding-spread
- Price: $0.001000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-usenami-io-98468231
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YwR0NYuopuge-nQ1G54BQ

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 api-usenami-io-98468231
```

Example prompt: Show me the funding rate spread for BTC perps right now — which venue has the highest rate, which has the lowest, and how wide is the spread in basis points?

## When to prefer this

Use this endpoint when you need a single snapshot of cross-venue funding rate dispersion for a specific ticker — ideal for funding rate arbitrage screening, position entry optimization, or assessing which venue offers the best funding cost. Prefer this over the per-venue historical endpoint when you want a current spread comparison rather than time-series data.

## Known failure modes

- Unknown or unsupported ticker symbol returns an error or empty result
- Venue data temporarily unavailable may produce incomplete spread calculation
- Stale funding rate data if venues have not recently reported rates
- Payment required (402) if x402 micropayment header is missing or invalid
- Rate limiting if too many requests are made in a short window

## How this service works

Cross-venue funding-rate spread for one crypto perpetual — the highest- and lowest-paying venues and the spread in bps, across major CEX and DEX venues (Binance, Bybit, OKX, Hyperliquid …). `spread_bps` is the RAW rate difference, the same quantity and name as on `/v1/perp/arbitrage/funding`; `normalized_spread_8h_bps` scales both legs to 8h, the comparable one, since venues quote on 1h/4h/8h. Leg intervals ship with the row; normalized is null when a schedule is unknown, never defaulted.

## Output

Returns the highest-rate venue and its funding rate, the lowest-rate venue and its funding rate, and the computed spread between them in basis points for the requested ticker across all tracked perpetual venues.

## Example request

```json
{
 "ticker": "BTC"
}
```

## 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"
    },
    "method": {
     "type": "string"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-usenami-io-98468231/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.usenami.io](https://www.zero.xyz/host/api.usenami.io/llms.txt)