# Nami Cross-Venue Funding Rate Spread Snapshot

> Nami Cross-Venue Funding Rate Spread Snapshot is a paid API for AI agents from api-internal.usenami.io, paid per call via x402, $0.001000/call, status unknown (last checked 2026-09-13).

Returns a cross-venue funding rate spread snapshot for a specified crypto symbol (e.g. BTC), showing the difference in funding rates across trading venues.

## Facts

- Endpoint: GET https://api-internal.usenami.io/v1/funding/spread/BTC
- Price: $0.001000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-internal-usenami-io-620d26e7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jOHrP7uO5BYupbmrZnBsc

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-internal-usenami-io-620d26e7
```

Example prompt: What's the current funding rate spread for BTC across all venues — I want to see if there's any meaningful difference between exchanges right now?

## When to prefer this

Use this endpoint when you need a single-call snapshot of funding rate spreads across multiple venues for a given crypto asset, particularly for identifying cross-venue arbitrage opportunities or monitoring funding rate divergence. Prefer this over per-venue funding rate endpoints when you specifically want the spread/differential rather than individual venue rates.

## Known failure modes

- Unknown or unsupported symbol returns a 404 or empty result
- Stale data if venues have connectivity issues
- Payment failure (402) if x402 micropayment of $0.001 USDC is not provided
- Rate limiting if too many requests are made in quick succession
- Partial data if one or more venues are temporarily unavailable

## How this service works

Cross-venue rate spread snapshot for a symbol

## Output

A snapshot of the cross-venue funding rate spread for the requested symbol (e.g. BTC), including rate differentials between trading venues, enabling arbitrage assessment or market condition monitoring.

## Example request

```json
{
 "input": {
  "type": "GET",
  "method": "funding_spread"
 }
}
```

## 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"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "symbol",
  "max_rate",
  "min_rate",
  "max_venue",
  "min_venue",
  "spread_bps"
 ],
 "properties": {
  "symbol": {
   "type": "string"
  },
  "max_rate": {
   "type": "number"
  },
  "min_rate": {
   "type": "number"
  },
  "max_venue": {
   "type": "string"
  },
  "min_venue": {
   "type": "string"
  },
  "spread_bps": {
   "type": "number"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-internal-usenami-io-620d26e7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api-internal.usenami.io](https://www.zero.xyz/host/api-internal.usenami.io/llms.txt)