# Crypto Exchange Flow Tracker (On-Chain) (`gochujang/crypto-exchange-flow`) Actor

Track on-chain BTC/ETH exchange inflows and outflows via CoinMetrics. Net outflow = accumulation signal. Net inflow = distribution/sell risk. Includes MVRV ratio, active addresses, and 7d flow comparison. No API key required.

- **URL**: https://apify.com/gochujang/crypto-exchange-flow.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.

In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js/docs.md):

```bash
npm install apify-client
```

In Python projects, use official [Python client library](https://docs.apify.com/api/client/python/docs.md):

```bash
pip install apify-client
```

In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md):

````bash
# MacOS / Linux
curl -fsSL https://apify.com/install-cli.sh | bash
# Windows
irm https://apify.com/install-cli.ps1 | iex
```bash

In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/integrations/mcp.md).

If your project is in a different language, use 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

## Crypto Exchange Flow Tracker (On-Chain)

> Track on-chain **exchange inflows and outflows** for BTC, ETH, SOL and more. Net exchange outflow = accumulation signal. Net inflow = distribution risk. Includes MVRV ratio, active addresses, and 7-day baseline comparison. Free via CoinMetrics. **$0.002/asset-day**.

---

### What Exchange Flows Tell You

Exchange flow data is one of the most reliable on-chain leading indicators:

| Signal | What it means |
|--------|--------------|
| **Net outflow** (coins leave exchanges) | Accumulation — investors moving to cold storage, bullish signal |
| **Net inflow** (coins flow to exchanges) | Distribution — investors preparing to sell, bearish signal |
| **Large spike in inflow** | Watch for near-term sell pressure |
| **Sustained outflow** | Supply crunch forming, long-term bullish |

### Example Output

```json
{
  "asset": "BTC",
  "date": "2026-07-07",
  "price_usd": 95230,
  "market_cap_usd": 1880000000000,
  "exchange_inflow_usd": 1462280071,
  "exchange_outflow_usd": 1712723975,
  "net_flow_usd": 250443904,
  "net_flow_signal": "accumulation",
  "inflow_vs_7d_avg_pct": -12.4,
  "outflow_vs_7d_avg_pct": 8.1,
  "active_addresses": 641947,
  "transaction_count": 631230,
  "mvrv_ratio": 1.197,
  "circulating_supply": 20053235.5
}
````

### SUMMARY Key-Value Store

```json
{
  "distribution_signals": ["ETH"],
  "accumulation_signals": ["BTC", "SOL"],
  "latest_by_asset": { "BTC": {...}, "ETH": {...} }
}
```

### Supported Assets

| Code | Asset |
|------|-------|
| `btc` | Bitcoin |
| `eth` | Ethereum |
| `sol` | Solana |
| `bnb` | BNB |
| `usdt` | Tether |
| `usdc` | USD Coin |
| `xrp` | XRP |
| `ada` | Cardano |
| `avax` | Avalanche |
| `matic` | Polygon |

### Input Options

| Parameter | Type | Default | Description |
|-----------|------|---------|-------------|
| `assets` | string\[] | `["btc","eth"]` | Assets to track (see supported list above) |
| `lookbackDays` | integer | `7` | Days of history to return (1-30) |

### Pricing

- **$0.002 per asset-day**
- BTC + ETH for 7 days = **$0.028** per run
- BTC + ETH for 30 days = **$0.12** per run
- Ideal for daily scheduling to track flow trends

### Use Cases

**Daily BTC+ETH flow snapshot:**

```json
{"assets": ["btc", "eth"], "lookbackDays": 1}
```

**7-day trend analysis:**

```json
{"assets": ["btc", "eth", "sol"], "lookbackDays": 7}
```

**Full stablecoin + major crypto flows:**

```json
{"assets": ["btc", "eth", "usdt", "usdc"], "lookbackDays": 7}
```

### Data Source

[CoinMetrics Community API](https://community-api.coinmetrics.io) — free, no authentication required. Covers on-chain flows measured from blockchain transaction data across major known exchange addresses.

# Actor input Schema

## `assets` (type: `array`):

Crypto assets to track. Supported: btc, eth, sol, bnb, usdt, usdc, xrp, ada, avax, matic.

## `lookbackDays` (type: `integer`):

Number of days of flow data to return (1-30). Each day = 1 data point per asset.

## Actor input object example

```json
{
  "assets": [
    "btc",
    "eth"
  ],
  "lookbackDays": 7
}
```

# 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/crypto-exchange-flow").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/crypto-exchange-flow").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/crypto-exchange-flow --silent --output-dataset

```

## MCP server setup

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

```

## OpenAPI specification

```json
{
    "openapi": "3.0.1",
    "info": {
        "title": "Crypto Exchange Flow Tracker (On-Chain)",
        "description": "Track on-chain BTC/ETH exchange inflows and outflows via CoinMetrics. Net outflow = accumulation signal. Net inflow = distribution/sell risk. Includes MVRV ratio, active addresses, and 7d flow comparison. No API key required.",
        "version": "0.1",
        "x-build-id": "JeAPZGoaFZLVwZbE0"
    },
    "servers": [
        {
            "url": "https://api.apify.com/v2"
        }
    ],
    "paths": {
        "/acts/gochujang~crypto-exchange-flow/run-sync-get-dataset-items": {
            "post": {
                "operationId": "run-sync-get-dataset-items-gochujang-crypto-exchange-flow",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        },
        "/acts/gochujang~crypto-exchange-flow/runs": {
            "post": {
                "operationId": "runs-sync-gochujang-crypto-exchange-flow",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor and returns information about the initiated run in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK",
                        "content": {
                            "application/json": {
                                "schema": {
                                    "$ref": "#/components/schemas/runsResponseSchema"
                                }
                            }
                        }
                    }
                }
            }
        },
        "/acts/gochujang~crypto-exchange-flow/run-sync": {
            "post": {
                "operationId": "run-sync-gochujang-crypto-exchange-flow",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        }
    },
    "components": {
        "schemas": {
            "inputSchema": {
                "type": "object",
                "properties": {
                    "assets": {
                        "title": "Assets",
                        "type": "array",
                        "description": "Crypto assets to track. Supported: btc, eth, sol, bnb, usdt, usdc, xrp, ada, avax, matic.",
                        "default": [
                            "btc",
                            "eth"
                        ],
                        "items": {
                            "type": "string"
                        }
                    },
                    "lookbackDays": {
                        "title": "Lookback Days",
                        "minimum": 1,
                        "maximum": 30,
                        "type": "integer",
                        "description": "Number of days of flow data to return (1-30). Each day = 1 data point per asset.",
                        "default": 7
                    }
                }
            },
            "runsResponseSchema": {
                "type": "object",
                "properties": {
                    "data": {
                        "type": "object",
                        "properties": {
                            "id": {
                                "type": "string"
                            },
                            "actId": {
                                "type": "string"
                            },
                            "userId": {
                                "type": "string"
                            },
                            "startedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "finishedAt": {
                                "type": "string",
                                "format": "date-time",
                                "example": "2025-01-08T00:00:00.000Z"
                            },
                            "status": {
                                "type": "string",
                                "example": "READY"
                            },
                            "meta": {
                                "type": "object",
                                "properties": {
                                    "origin": {
                                        "type": "string",
                                        "example": "API"
                                    },
                                    "userAgent": {
                                        "type": "string"
                                    }
                                }
                            },
                            "stats": {
                                "type": "object",
                                "properties": {
                                    "inputBodyLen": {
                                        "type": "integer",
                                        "example": 2000
                                    },
                                    "rebootCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "restartCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "resurrectCount": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "computeUnits": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "options": {
                                "type": "object",
                                "properties": {
                                    "build": {
                                        "type": "string",
                                        "example": "latest"
                                    },
                                    "timeoutSecs": {
                                        "type": "integer",
                                        "example": 300
                                    },
                                    "memoryMbytes": {
                                        "type": "integer",
                                        "example": 1024
                                    },
                                    "diskMbytes": {
                                        "type": "integer",
                                        "example": 2048
                                    }
                                }
                            },
                            "buildId": {
                                "type": "string"
                            },
                            "defaultKeyValueStoreId": {
                                "type": "string"
                            },
                            "defaultDatasetId": {
                                "type": "string"
                            },
                            "defaultRequestQueueId": {
                                "type": "string"
                            },
                            "buildNumber": {
                                "type": "string",
                                "example": "1.0.0"
                            },
                            "containerUrl": {
                                "type": "string"
                            },
                            "usage": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "integer",
                                        "example": 1
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            },
                            "usageTotalUsd": {
                                "type": "number",
                                "example": 0.00005
                            },
                            "usageUsd": {
                                "type": "object",
                                "properties": {
                                    "ACTOR_COMPUTE_UNITS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATASET_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "KEY_VALUE_STORE_WRITES": {
                                        "type": "number",
                                        "example": 0.00005
                                    },
                                    "KEY_VALUE_STORE_LISTS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_READS": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "REQUEST_QUEUE_WRITES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_INTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "DATA_TRANSFER_EXTERNAL_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                                        "type": "integer",
                                        "example": 0
                                    },
                                    "PROXY_SERPS": {
                                        "type": "integer",
                                        "example": 0
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
```
