# Nami Perpetuals Volume Anomaly Scanner

> Nami Perpetuals Volume Anomaly Scanner is a paid API for AI agents from api.usenami.io, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Scans perpetual futures tickers for volume spikes where 24h rolling volume exceeds a multiplier times the baseline historical average over a lookback window.

## Facts

- Endpoint: GET https://api.usenami.io/v1/perp/volume-anomalies
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-usenami-io-b21c4c7c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xlu9ed3eM6QfwBSUxIkn8

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-b21c4c7c
```

Example prompt: Show me all perp tickers where today's 24-hour volume is at least 3x their historical baseline average — I want to catch any volume anomalies across venues right now.

## When to prefer this

Use this endpoint when you need a broad cross-venue scan to surface perpetual futures contracts with statistically anomalous trading volume — ideal for pre-trade opportunity screening, momentum strategy inputs, or real-time market surveillance. Prefer this over single-ticker volume endpoints when you want to discover which symbols are spiking without knowing them in advance.

## Known failure modes

- Invalid or missing multiplier parameter returns 400 error
- Lookback window out of supported range returns 400 error
- No tickers match the threshold — returns empty list
- Upstream data unavailability causes partial or stale results
- Payment failure (x402) blocks the request entirely

## How this service works

Volume-spike scanner across tracked crypto perpetuals: every ticker whose current 24h volume is at least your multiplier × the baseline average over a lookback window. Raw scan — it surfaces unusual activity, it does not interpret it.

## Output

A list of perpetual futures tickers whose current 24-hour USD volume exceeds the specified multiplier times their historical baseline average volume over the lookback window, including the raw volume figures and spike ratios for each ticker.

## 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-b21c4c7c/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)