# CEX Spot Arbitrage Scanner — Binance, Bybit, OKX, Kraken, Gate (`gochujang/cex-spot-arb-scanner`) Actor

Scans spot bid/ask prices across 5 major CEXes (Binance, Bybit, OKX, Kraken, Gate.io) and identifies raw cross-exchange spread opportunities. Best buy/sell exchange highlighted per coin. No API key. $0.003/coin.

- **URL**: https://apify.com/gochujang/cex-spot-arb-scanner.md
- **Developed by:** [Hojun Lee](https://apify.com/gochujang) (community)
- **Categories:** Developer tools, Automation, News
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

Pay per usage

This Actor is paid per platform usage. The Actor is free to use, and you only pay for the Apify platform usage, which gets cheaper the higher subscription plan you have.

Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-usage

## What's an Apify Actor?

Actors are web data automations that power AI and operations. They run on the Apify platform to scrape websites, process data, connect APIs, and automate workflows.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.
Actors are written with capital "A".

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.
The best way to integrate Actors is as follows.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
- **Agentic workflows and local Actor development** — [Agent Skills](https://apify.com/.well-known/agent-skills/index.json) with the [Apify CLI](https://docs.apify.com/cli/docs.md): `npm install -g apify-cli`, then `apify login`.
- **JavaScript/TypeScript projects** — the official [JS/TS client](https://docs.apify.com/api/client/js/docs.md): `npm install apify-client`.
- **Python projects** — the official [Python client](https://docs.apify.com/api/client/python/docs.md): `pip install apify-client`.
- **Any other language** — the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).

# README

## CEX Spot Arbitrage Scanner

> Scans bid/ask prices across 5 major CEXes (Binance, Bybit, OKX, Kraken, Gate.io) and identifies raw cross-exchange price spread opportunities. No API key required.

***

### What It Does

For each coin, fetches order book bid/ask from all 5 exchanges simultaneously and computes:

- **Best buy exchange** — lowest ask price (where to buy cheapest)
- **Best sell exchange** — highest bid price (where to sell dearest)
- **Raw spread %** — `(best_bid - best_ask) / best_ask × 100`
- **Raw spread bps** — same value in basis points (1% = 100 bps)
- **Signal**: `arbitrage_opportunity` (>0.1%), `minor_spread`, or `no_arb`

All individual exchange bid/ask prices are included in output for full transparency.

***

### Important Disclaimer

**This is raw price spread data only.** Real arbitrage must account for:

- Withdrawal/deposit fees per exchange (~0.1-0.25% each way)
- Transfer time (10 min+ for blockchain confirmations)
- Slippage on trade execution
- KYC verification and withdrawal limits

Spreads below ~0.5% are generally not profitable after fees. Spreads above 1% in liquid markets indicate unusual market conditions.

***

### Input

| Field | Default | Description |
|-------|---------|-------------|
| `coins` | 10 major coins | Symbols to scan (no USDT suffix) |

***

### Pricing

**$0.003 per coin.** Default 10 coins = $0.03/run.

# Actor input Schema

## `coins` (type: `array`):

Coin symbols to scan for price differences across exchanges (e.g., BTC, ETH, SOL).

## Actor input object example

```json
{
  "coins": [
    "BTC",
    "ETH",
    "SOL",
    "BNB",
    "XRP",
    "DOGE",
    "ADA",
    "AVAX",
    "LINK",
    "MATIC"
  ]
}
```

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {};

// Run the Actor and wait for it to finish
const run = await client.actor("gochujang/cex-spot-arb-scanner").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {}

# Run the Actor and wait for it to finish
run = client.actor("gochujang/cex-spot-arb-scanner").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"])
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{}' |
apify call gochujang/cex-spot-arb-scanner --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://mcp.apify.com/?tools=gochujang/cex-spot-arb-scanner",
                "--header",
                "Authorization: Bearer <YOUR_API_TOKEN>"
            ]
        }
    }
}

```

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/MO3FAbX5xykgbkhCQ/builds/LhLvn9ovBHkAbTnEw/openapi.json