# Nami Multi-Venue Slippage Scanner

> Nami Multi-Venue Slippage Scanner is a paid API for AI agents from api.usenami.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).

Scans all supported venues for a given ticker and returns slippage estimates at $1K/$5K/$10K notional sizes, sorted by lowest slippage, with BBO and depth data.

## Facts

- Endpoint: GET https://api.usenami.io/v1/orderbook/multi-venue-slippage
- Price: $0.005/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-c448e142
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mZXCHZqhr51LTkmwLdNgT

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-c448e142
```

Example prompt: Scan all venues for BTC-PERP and show me which exchange has the lowest slippage at $1K, $5K, and $10K notional sizes, with BBO and depth included.

## When to prefer this

Use this endpoint when you need a broad cross-venue comparison of execution quality at multiple notional sizes in a single call. Prefer this over the single-venue slippage endpoint when you don't know which venue to use and want to discover the optimal routing venue. Use the greedy multi-venue router instead if you need to actually split and execute a large order across venues.

## Known failure modes

- Unknown or unsupported ticker symbol returns empty venue list or 404
- Stale order book data may produce inaccurate slippage estimates during low-liquidity periods
- Rate limiting or payment failure (402) if USDC payment not included
- Partial results if some venues are temporarily unavailable during the scan

## How this service works

Per-venue slippage scan for one crypto perpetual at $1K/$5K/$10K notional, across tracked CEX and DEX venues — every venue sorted by lowest slippage, with BBO and depth. Raw scan, no opinionated ranking: where a given size is cheapest to execute.

## Output

A list of all supported venues sorted by lowest slippage for the requested ticker, each entry containing slippage estimates at $1K/$5K/$10K notional, best bid/ask prices, and order book depth data. No fees or funding adjustments are applied — raw execution cost only.

## Example request

```json
{
 "type": "orderbook",
 "method": "multi-venue-slippage",
 "ticker": "BTC",
 "notional_sizes": [
  1000,
  5000,
  10000
 ]
}
```

## 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-c448e142/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)