# Usenami Perpetual Funding Carry

> Usenami Perpetual Funding Carry is a paid API for AI agents from api.usenami.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Returns per-venue funding rate, annualized carry percentage, and contango/backwardation structure for a given perpetual futures ticker

## Facts

- Endpoint: GET https://api.usenami.io/v1/perp/carry
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/usenami-perpetual-funding-carry-025cb33a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_m1otL4sKiFZgoGULE0GWF

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 usenami-perpetual-funding-carry-025cb33a
```

Example prompt: What's the current funding rate and annualized carry for BTC perps on Binance right now — and is the market in contango or backwardation?

## When to prefer this

Use this endpoint when you need fast, structured per-venue funding carry data including the annualized carry percentage and contango/backwardation label — especially for carry trade analysis, delta-neutral strategy setup, or market sentiment signals derived from funding sign. Prefer this over a raw exchange API when you want normalized, pre-computed carry metrics across venues without building your own annualization logic.

## Known failure modes

- Unknown ticker symbol returns an error or empty result
- Unsupported venue returns no data
- Missing required input fields (type or method) returns a validation error
- Stale funding data if the exchange feed is delayed
- Rate limit exceeded if too many calls are made in quick succession

## How this service works

Per-venue funding carry for one crypto perpetual: raw funding_rate, annualized_carry_pct, and contango/backwardation structure from the funding sign. What holding this perp pays or costs you per year, venue by venue, across tracked CEX and DEX venues.

## Output

Returns the raw funding rate for the requested ticker/venue, the annualized carry percentage derived from it, and a contango/backwardation classification inferred from the sign of the funding rate — allowing agents to assess carry trade attractiveness and market structure at a glance.

## 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/usenami-perpetual-funding-carry-025cb33a/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)