# Nami Funding Arbitrage Signal

> Nami Funding Arbitrage Signal is a paid API for AI agents from api.usenami.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-16).

Returns a ranked, decision-ready funding arbitrage signal showing gross spread net of round-trip taker fees, periods-to-breakeven, and depth-sized max notional across venues for perpetual futures.

## Facts

- Endpoint: GET https://api.usenami.io/v1/perp/arbitrage/funding-signal
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nami-funding-arbitrage-signal-9e09de4f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zVfCasFAfzCQ8nCmAPLbz

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 nami-funding-arbitrage-signal-9e09de4f
```

Example prompt: Give me the ranked funding arbitrage signals for BTC perpetuals right now — show me the net spread after round-trip taker fees, how many periods to breakeven, and the max notional I can put on at $5k depth.

## When to prefer this

Use this endpoint when you need a pre-computed, fee-adjusted funding arbitrage signal ranked and ready for decision-making, rather than raw funding rates or spreads you'd have to net yourself. Prefer this over the raw cross-venue spread endpoint when you need breakeven analysis and depth-sized notional limits baked in.

## Known failure modes

- Missing required 'type' or 'method' fields in input returns a 400 validation error
- Unknown ticker or unsupported instrument type returns empty results or 404
- Insufficient liquidity depth at requested size tier may return null notional values
- Stale orderbook data may reduce signal accuracy during low-liquidity periods
- Payment failure (x402) if USDC balance is insufficient returns 402 Payment Required

## How this service works

Decision-ready funding-arb SIGNAL for crypto perpetuals — cross-venue gross spread taken net of public round-trip taker fees, periods-to-breakeven, and depth-sized max notional at $1k/$5k/$10k, ranked. A derived outcome, not a profit forecast.

## Output

A ranked list of funding arbitrage opportunities across venues, each showing the gross funding rate spread, net spread after public round-trip taker fees, number of funding periods required to break even, and depth-sized maximum notional at $1k/$5k/$10k tiers. Results are presented as a derived signal, not a profit forecast.

## 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/nami-funding-arbitrage-signal-9e09de4f/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)