# Nami Volume-Weighted Average Funding Rate

> Nami Volume-Weighted Average Funding Rate is a paid API for AI agents from api.usenami.io, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).

Returns the volume-weighted average perpetual funding rate across all venues for a given ticker, weighting each venue's rate by its market share.

## Facts

- Endpoint: GET https://api.usenami.io/v1/perp/vw-spread
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-usenami-io-06334a45
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_e5bGHspZgo4KKRSyLIp_5

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-06334a45
```

Example prompt: What's the volume-weighted average funding rate for BTC perpetuals right now across all venues, taking into account each exchange's market share?

## When to prefer this

Use this endpoint when you need a single representative funding rate for a ticker that fairly reflects the overall market, rather than rates from a single exchange. Ideal for position cost modeling, delta-neutral strategy evaluation, or any scenario where you want a volume-adjusted blended rate rather than a simple average or single-venue rate.

## Known failure modes

- Invalid or unsupported ticker symbol returns a 4xx error
- No venue data available for ticker returns empty or zero result
- Venue data temporarily unavailable causes incomplete weighting
- Payment not included or insufficient results in 402 Payment Required
- Rate limiting may apply if call volume is exceeded

## How this service works

Volume-weighted average funding rate across all tracked venues for one crypto perpetual. Accounts for venue market share — high-volume venues dominate the weighted rate, so it reflects what the market actually pays rather than a flat average across thin and deep venues alike.

## Output

A composite funding rate for the requested ticker, computed as a weighted average across all tracked venues where each venue's rate is weighted by its share of total trading volume. High-volume venues dominate the resulting rate.

## Example request

```json
{
 "input": {
  "type": "perpetual",
  "method": "GET"
 },
 "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-06334a45/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)