# 💱 Exchange Rate Monitor (`taroyamada/exchange-rate-monitor`) Actor

Monitor 160+ foreign exchange rates with automatic change detection. Free currency converter API, no key needed. Ideal for e-commerce, international trade, travel, and finance applications.

- **URL**: https://apify.com/taroyamada/exchange-rate-monitor.md
- **Developed by:** [太郎 山田](https://apify.com/taroyamada) (community)
- **Categories:** Business, Automation, AI
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, NaN bookmarks
- **User rating**: No ratings yet

## Pricing

Pay per event

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

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

## What's an Apify Actor?

Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases.
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.md):

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

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

## 💱 Exchange Rate Monitor

Monitor 160+ foreign exchange rates with automatic change detection. Free currency converter API, no key needed. Great for e-commerce and finance.

### Store Quickstart

Start with the **Quickstart** template (USD base, EUR/JPY/GBP targets). For daily monitoring, use **Change Detection** with enableChangeDetection=true.

### Key Features

- 💱 **160+ currencies** — All major and minor world currencies
- 🔄 **Change detection** — Alert when rates move beyond threshold
- 🌍 **Open.er-api.com** — Free, reliable, no key needed
- 📊 **Daily updates** — Rates refreshed daily (24h cache)
- 💾 **State persistence** — Track rate changes across runs
- 🔑 **No API key needed** — Completely free API

### Use Cases

| Who | Why |
|-----|-----|
| **E-commerce platforms** | Dynamic pricing in multiple currencies |
| **International finance** | Settlement rate monitoring for cross-border payments |
| **Travel industry** | Display converted prices for traveler markets |
| **Treasury teams** | Monitor forex exposure for multinational operations |
| **Accounting software** | Daily rate feeds for invoicing and reporting |

### Input

| Field | Type | Default | Description |
|-------|------|---------|-------------|
| baseCurrency | string | USD | Base currency (ISO code) |
| targetCurrencies | string[] | ["EUR","JPY","GBP"] | Target currencies |
| enableChangeDetection | boolean | false | Track rate changes |

#### Input Example

```json
{
  "baseCurrency": "USD",
  "targetCurrencies": ["EUR", "JPY", "GBP"],
  "enableChangeDetection": true
}
````

### Output

| Field | Type | Description |
|-------|------|-------------|
| `base` | string | Base currency code |
| `target` | string | Target currency code |
| `rate` | number | Current exchange rate |
| `previousRate` | number | Previous fetched rate (if available) |
| `changePercent` | number | Percent change since last fetch |
| `alerted` | boolean | Whether change exceeded threshold |
| `fetchedAt` | string | ISO timestamp |

#### Output Example

```json
{
  "base": "USD",
  "rates": {"EUR": 0.92, "JPY": 148.50, "GBP": 0.79},
  "changes": {"EUR": "+0.15%", "JPY": "-0.30%"},
  "timestamp": "2026-04-05T00:00:00Z"
}
```

### API Usage

Run this actor programmatically using the Apify API. Replace `YOUR_API_TOKEN` with your token from [Apify Console → Settings → Integrations](https://console.apify.com/account/integrations).

#### cURL

```bash
curl -X POST "https://api.apify.com/v2/acts/taroyamada~exchange-rate-monitor/run-sync-get-dataset-items?token=YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "baseCurrency": "USD", "targetCurrencies": ["EUR", "JPY", "GBP"], "enableChangeDetection": true }'
```

#### Python

```python
from apify_client import ApifyClient

client = ApifyClient("YOUR_API_TOKEN")
run = client.actor("taroyamada/exchange-rate-monitor").call(run_input={
  "baseCurrency": "USD",
  "targetCurrencies": ["EUR", "JPY", "GBP"],
  "enableChangeDetection": true
})

for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)
```

#### JavaScript / Node.js

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

const client = new ApifyClient({ token: 'YOUR_API_TOKEN' });
const run = await client.actor('taroyamada/exchange-rate-monitor').call({
  "baseCurrency": "USD",
  "targetCurrencies": ["EUR", "JPY", "GBP"],
  "enableChangeDetection": true
});

const { items } = await client.dataset(run.defaultDatasetId).listItems();
console.log(items);
```

### Tips & Limitations

- Set `changeThreshold: 0.5` to alert on >0.5% movements.
- Schedule hourly to track FX volatility for international transactions.
- Use webhook delivery for real-time treasury management.
- Combine with Crypto Price Tracker for comprehensive financial monitoring.

### FAQ

**How current are rates?**

Daily close rates from Open.er-api.com. For sub-hourly rates, use a paid forex API.

**Is this suitable for FX trading?**

No — daily rates only. Trading requires live tick data from a broker.

**What currencies are included?**

160+ ISO currency codes. USD, EUR, JPY, GBP, plus all major minor currencies.

**How does change detection work?**

Compares current rate to stored previous rate per currency pair. Useful for alerts.

**Which currencies are supported?**

All ISO 4217 codes — USD, EUR, GBP, JPY, AUD, CAD, CHF, CNY, and 150+ more.

**How accurate are the rates?**

Mid-market rates suitable for monitoring. For execution, use a broker's quoted rate.

### Related Actors

Market Data & Financial APIs cluster — explore related Apify tools:

- [💰 Crypto Price Tracker](https://apify.com/taroyamada/cryptocurrency-price-tracker) — Track cryptocurrency prices, market caps, 24h volumes, and price changes for 10,000+ coins via CoinGecko API.
- [🌤️ Weather Forecast API](https://apify.com/taroyamada/weather-forecast-fetcher) — Fetch weather forecasts for any location worldwide via free Open-Meteo API.
- [📊 SEC EDGAR Monitor](https://apify.com/taroyamada/sec-edgar-filings-monitor) — Monitor SEC EDGAR filings for US public companies by ticker or CIK.
- [Competitive Pricing Monitor - SaaS & Ecommerce Plan Tracker](https://apify.com/taroyamada/competitive-pricing-monitor) — Monitor competitor SaaS and ecommerce pricing pages for plan changes, price increases/decreases, new/removed tiers, and packaging shifts.
- [ESG Disclosure Tracker API](https://apify.com/taroyamada/esg-disclosure-tracker) — Monitor official ESG, sustainability, climate, investor relations, and SEC / EDGAR disclosure surfaces with one summary-first company digest per monitored target.

### Cost

**Pay Per Event**:

- `actor-start`: $0.01 (flat fee per run)
- `dataset-item`: $0.001 per output item

**Example**: 1,000 items = $0.01 + (1,000 × $0.001) = **$1.01**

No subscription required — you only pay for what you use.

# Actor input Schema

## `baseCurrency` (type: `string`):

Base currency code (e.g., USD, EUR).

## `targetCurrencies` (type: `array`):

Leave empty for all currencies.

## `enableChangeDetection` (type: `boolean`):

Compare with previous run.

## `timeoutMs` (type: `integer`):

Request timeout in milliseconds

## `delivery` (type: `string`):

Where to send results: dataset or webhook

## `webhookUrl` (type: `string`):

Webhook URL to POST results to (if delivery=webhook)

## `dryRun` (type: `boolean`):

Run without saving results (for testing)

## Actor input object example

```json
{
  "baseCurrency": "USD",
  "enableChangeDetection": true,
  "timeoutMs": 15000,
  "delivery": "dataset",
  "dryRun": false
}
```

# 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 = {
    "baseCurrency": "USD"
};

// Run the Actor and wait for it to finish
const run = await client.actor("taroyamada/exchange-rate-monitor").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 = { "baseCurrency": "USD" }

# Run the Actor and wait for it to finish
run = client.actor("taroyamada/exchange-rate-monitor").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 '{
  "baseCurrency": "USD"
}' |
apify call taroyamada/exchange-rate-monitor --silent --output-dataset

```

## MCP server setup

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

```

## OpenAPI specification

```json
{
    "openapi": "3.0.1",
    "info": {
        "title": "💱 Exchange Rate Monitor",
        "description": "Monitor 160+ foreign exchange rates with automatic change detection. Free currency converter API, no key needed. Ideal for e-commerce, international trade, travel, and finance applications.",
        "version": "0.1",
        "x-build-id": "Sh9IRPcBmuf0eCqvr"
    },
    "servers": [
        {
            "url": "https://api.apify.com/v2"
        }
    ],
    "paths": {
        "/acts/taroyamada~exchange-rate-monitor/run-sync-get-dataset-items": {
            "post": {
                "operationId": "run-sync-get-dataset-items-taroyamada-exchange-rate-monitor",
                "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": {
                                "$ref": "#/components/schemas/inputSchema"
                            }
                        }
                    }
                },
                "parameters": [
                    {
                        "name": "token",
                        "in": "query",
                        "required": true,
                        "schema": {
                            "type": "string"
                        },
                        "description": "Enter your Apify token here"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "OK"
                    }
                }
            }
        },
        "/acts/taroyamada~exchange-rate-monitor/runs": {
            "post": {
                "operationId": "runs-sync-taroyamada-exchange-rate-monitor",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor and returns information about the initiated run in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$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": {
                                    "$ref": "#/components/schemas/runsResponseSchema"
                                }
                            }
                        }
                    }
                }
            }
        },
        "/acts/taroyamada~exchange-rate-monitor/run-sync": {
            "post": {
                "operationId": "run-sync-taroyamada-exchange-rate-monitor",
                "x-openai-isConsequential": false,
                "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
                "tags": [
                    "Run Actor"
                ],
                "requestBody": {
                    "required": true,
                    "content": {
                        "application/json": {
                            "schema": {
                                "$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",
                "required": [
                    "baseCurrency"
                ],
                "properties": {
                    "baseCurrency": {
                        "title": "Base Currency",
                        "type": "string",
                        "description": "Base currency code (e.g., USD, EUR)."
                    },
                    "targetCurrencies": {
                        "title": "Target Currencies",
                        "type": "array",
                        "description": "Leave empty for all currencies.",
                        "items": {
                            "type": "string"
                        }
                    },
                    "enableChangeDetection": {
                        "title": "Change Detection",
                        "type": "boolean",
                        "description": "Compare with previous run.",
                        "default": true
                    },
                    "timeoutMs": {
                        "title": "Timeout (ms)",
                        "minimum": 1000,
                        "maximum": 30000,
                        "type": "integer",
                        "description": "Request timeout in milliseconds",
                        "default": 15000
                    },
                    "delivery": {
                        "title": "Delivery",
                        "enum": [
                            "dataset",
                            "webhook"
                        ],
                        "type": "string",
                        "description": "Where to send results: dataset or webhook",
                        "default": "dataset"
                    },
                    "webhookUrl": {
                        "title": "Webhook URL",
                        "type": "string",
                        "description": "Webhook URL to POST results to (if delivery=webhook)"
                    },
                    "dryRun": {
                        "title": "Dry Run",
                        "type": "boolean",
                        "description": "Run without saving results (for testing)",
                        "default": false
                    }
                }
            },
            "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
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
```