API Documentation

Note: All the new functionalities and new endpoints listed in the pricing plans are designed for use with the new API endpoints in Version V2. Please refer to the V2 API endpoints documentation page for proper usage of the service. Please be aware that Version V1 of the API endpoints will be deprecated for use after June 30th, 2025

Welcome to the marketstack API documentation! In the following series of articles you will learn how to query the marketstack JSON API for real-time, intraday and historical stock market data, define multiple stock symbols, retrieve extensive data about 70+ stock exchanges, 170.000+ stock tickers from more than 50 countries, as well as 750+ market indices, information about timezones, currencies, and more.

Our API is built upon a RESTful and easy-to-understand request and response structure. API requests are always sent using a simple API request URL with a series of required and optional HTTP GET parameters, and API responses are provided in lightweight JSON format. Continue below to get started, or click the blue button above to jump to our 3-Step Quickstart Guide.

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Getting Started

API Authentication

For every API request you make, you will need to make sure to be authenticated with the API by passing your API access key to the API's access_key parameter. You can find an example below.

Example API Request:

Sign Up to Run API Requesthttps://api.marketstack.com/v1/eod
    ? access_key = YOUR_ACCESS_KEY
    & symbols = AAPL

Important: Please make sure not to expose your API access key publicly. If you believe your API access key may be compromised, you can always reset in your account dashboard.

256-bit HTTPS Encryption Available on: Basic Plan and higher

If you are subscribed to the Basic Plan or higher, you will be able to access the marketstack API using industry-standard HTTPS. To do that, simply use the https protocol when making API requests.

Example API Request:

https://api.marketstack.com/v1

Are you a Free Plan user and looking to connect via HTTPS? You will need to upgrade your account to the Basic Plan.

API Errors

API errors consist of error code and message response objects. If an error occurs, the marketstack will return HTTP status codes, such as 404 for "not found" errors. If your API request succeeds, status code 200 will be sent.

For validation errors, the marketstack API will also provide a context response object returning additional information about the error that occurred in the form of one or multiple sub-objects, each equipped with the name of the affected parameter as well as key and message objects. You can find an example error below.

Example Error:

{
   "error": {
      "code": "validation_error",
      "message": "Request failed with validation error",
      "context": {
         "symbols": [
            {
               "key": "missing_symbols",
               "message": "You did not specify any symbols."
            }
         ]
      }
   }
}

Common API Errors:

Note: The api is limited to 5 requests per second.

Supported Endpoint

End-of-Day Data Available on: All plans

You can use the API's eod endpoint in order to obtain end-of-day data for one or multiple stock tickers. A single or multiple comma-separated ticker symbols are passed to the API using the symbols parameter.

Note: To request end-of-day data for single ticker symbols, you can also use the API's Tickers Endpoint.

Example API Request:

Sign Up to Run API Requesthttps://api.marketstack.com/v1/eod
    ? access_key = YOUR_ACCESS_KEY
    & symbols = AAPL

Endpoint Features:

Parameters:

Example API Response:

If your API request was successful, the marketstack API will return both pagination information as well as a data object, which contains a separate sub-object for each requested date/time and symbol. All response objects are explained below.

{
    "pagination": {
        "limit": 100,
        "offset": 0,
        "count": 100,
        "total": 9944
    },
    "data": [
        {
            "open": 129.8,
            "high": 133.04,
            "low": 129.47,
            "close": 132.995,
            "volume": 106686703.0,
            "adj_high": 133.04,
            "adj_low": 129.47,
            "adj_close": 132.995,
            "adj_open": 129.8,
            "adj_volume": 106686703.0,
            "split_factor": 1.0,
            "dividend": 0.0,
            "symbol": "AAPL",
            "exchange": "XNAS",
            "date": "2021-04-09T00:00:00+0000"
            },
            [...]
    ]
}

API Response Objects:

Adjusted Prices: "Adjusted" prices are stock price values that were amended to accurately reflect the given stock's value after accounting for any corporate actions, such as splits or dividends. Adjustments are made in accordance with the "CRSP Calculations" methodology set forth by the Center for Research in Security Prices (CRSP).

End-of-Day Data:

You can use the API's eod endpoint in order to obtain end-of-day data for one or multiple stock tickers. A single or multiple comma-separated ticker symbols are passed to the API using the symbols parameter.

Market Indices Available on: Basic Plan and higher

The API is also capable of delivering end-of-day for 750+ of the world's major indices, including the S&P 500 Index, the Dow Jones Industrial Average Index as well as the NASDAQ Composite Index. Index data is available both on a "latest" basis as well as historically.

To list or access index data, simply pass INDX as your stock exchange MIC identification, as seen in the examples below. The example API request below illustrates how to obtain end-of-day data for the DJI market index.

Example API Request:

Sign Up to Run API Requesthttps://api.marketstack.com/v1/eod
    ? access_key = YOUR_ACCESS_KEY
    & symbols = DJI.INDX

Parameters:

For more information about request parameters, please refer to the End-of-day Data section of this documentation.

API Response:

{
    "pagination": {
        "limit": 1,
        "offset": 0,
        "count": 1,
        "total": 7561
    },
    "data": [
        {
            "date": "2020-08-21T00:00:00+0000",
            "symbol": "DJI.INDX",
            "exchange": "INDX",
            "open": 27758.1309,
            "high": 27959.4805,
            "low": 27686.7793,
            "close": 27930.3301,
            "volume": 374339179,
            "adj_high": null,
            "adj_low": null,
            "adj_close": 27930.3301,
            "adj_open": null,
            "adj_volume": null
        }
    ]
}

API Response Objects:

For more information about response objects, please refer to the End-of-day Data section of this documentation.

Market Indices in Other API Endpoints:

Historical Data Available on: All plans

Historical stock prices are available both from the end-of-day (eod) and intraday (intraday) API endpoints. To obtain historical data, simply use the date_from and date_to parameters as shown in the example request below.

Example API Request:

Sign Up to Run API Requesthttps://api.marketstack.com/v1/eod
    ? access_key = YOUR_ACCESS_KEY
    & symbols = AAPL
    & date_from = 2024-12-11
    & date_to = 2024-12-21

Parameters:

For details on request parameters on the eod data endpoint, please jump to the End-of-Day Data section.

Example API Response:

{
    "pagination": {
        "limit": 100,
        "offset": 0,
        "count": 22,
        "total": 22
    },
    "data": [
        {
            "date": "2019-02-01T00:00:00+0000",
            "symbol": "AAPL",
            "exchange": "XNAS",
            "open": 166.96,
            "high": 168.98,
            "low": 165.93,
            "close": 166.52,
            "volume": 32668138.0,
            "adj_open": 164.0861621594,
            "adj_high": 166.0713924395,
            "adj_low": 163.073891274,
            "adj_close": 163.6537357617,
            "adj_volume": 32668138.0
        },
        {
            "date": "2019-01-31T00:00:00+0000",
            "symbol": "AAPL",
            "exchange": "XNAS",
            "open": 166.11,
            "high": 169.0,
            "low": 164.56,
            "close": 166.44,
            "volume": 40739649.0,
            "adj_open": 163.2507929821,
            "adj_high": 166.0910481848,
            "adj_low": 161.7274727177,
            "adj_close": 163.5751127804,
            "adj_volume": 40739649.0
        }
        [...]
    ]
}

API Response Objects:

For details on API response objects, please jump to the End-of-Day Data section.

Note: Historical end-of-day data (eod) is available for up to 30 years back, while intraday data (intraday) always only offers the last 10,000 entries for each of the intervals available. Example: For a 1-minute interval, historical intraday data is available for up to 10,000 minutes back.

Historial Data:

Historical stock prices are available both from the end-of-day (eod) and intraday (intraday) API endpoints. To obtain historical data, simply use the date_from and date_to parameters as shown in the example request below.

Intraday Data Available on: Basic Plan and higher

In additional to daily end-of-day stock prices, the marketstack API also supports intraday data with data intervals as short as one minute. Intraday prices are available for all US stock tickers included in the IEX (Investors Exchange) stock exchange.

To obtain intraday data, you can use the API's intraday endpoint and specify your preferred stock ticker symbols.

Note: To request intraday data for single ticker symbols, you can also use the API's Tickers Endpoint.

Example API Request:

Sign Up to Run API Requesthttps://api.marketstack.com/v1/intraday
    ? access_key = YOUR_ACCESS_KEY
    & symbols = AAPL

Endpoint Features:

Parameters:

Real-Time Updates: Please note that data frequency intervals below 15 minutes (15min) are only supported if you are subscribed to the Professional Plan or higher. If you are the Free or Basic Plan, please upgrade your account.

Example API Response:

If your API request was successful, the marketstack API will return both pagination information as well as a data object, which contains a separate sub-object for each requested date/time and symbol. All response objects are explained below.

{
    "pagination": {
        "limit": 100,
        "offset": 0,
        "count": 100,
        "total": 5000
    },
    "data": [
        {
            "date": "2020-06-02T00:00:00+0000"
            "symbol": "AAPL",
            "exchange": "IEXG",
            "open": 317.75,
            "high": 322.35,
            "low": 317.21,
            "close": 317.94,
            "last": 318.91,
            "volume": 41551000
        },
        [...]
    ]
}

API Response Objects:

Intraday Data:

Real-Time Updates

For customers with an active subscription to the Professional Plan, the marketstack API's intraday endpoint is also capable of providing real-time market data, updated every minute, every 5 minutes or every 10 minutes.

To obtain real-time data using this endpoint, simply append the API's interval parameter and set it to 1min, 5min or 10min.

Example API Request:

Sign Up to Run API Requesthttps://api.marketstack.com/v1/intraday
    ? access_key = YOUR_ACCESS_KEY
    & symbols = AAPL
    & interval = 1min

Endpoint Features, Parameters & API Response:

To learn about endpoint features, request parameters and API response objects, please navigate to the Intraday Data section.

Real-Time-Updates:

Specify the interval parameter and set it to 1min, 5min or 10min to obtain real-time data using this endpoint.

Splits Data Available on: All plans

Using the APIssplitsendpoint you will be able to look up information about the stock splits factor for different symbols. You will be able to find and try out an example API request below.

To obtain splits data, you can use the API's splits endpoint and specify your preferred stock ticker symbols.

Note: To request splits data for single ticker symbols, you can also use the API's Tickers Endpoint.

Example API Request:

Sign Up to Run API Requesthttps://api.marketstack.com/v1/splits
    ? access_key = YOUR_ACCESS_KEY
    & symbols = AAPL

Endpoint Features:

Parameters:

Example API Response:

If your API request was successful, the marketstack API will return both pagination information as well as a data object, which contains a separate sub-object for each requested date/time and symbol. All response objects are explained below.

{
    "pagination": {
        "limit": 100,
        "offset": 0,
        "count": 100,
        "total": 50765
    },
    "data": [
        {
            "date": "2021-05-24",
            "split_factor": 0.5,
            "symbol": "IAU"
        },
        [...]
    ]
}

API Response Objects:

Splits Data:

Dividends Data Available on: All plans

Using the APIsdividendsendpoint you will be able to look up information about the stock dividend for different symbols. You will be able to find and try out an example API request below.

To obtain dividends data, you can use the API's dividens endpoint and specify your preferred stock ticker symbols.

Note: To request dividends data for single ticker symbols, you can also use the API's Tickers Endpoint.

Example API Request:

Sign Up to Run API Requesthttps://api.marketstack.com/v1/dividends
    ? access_key = YOUR_ACCESS_KEY
    & symbols = AAPL

Endpoint Features:

Parameters:

Example API Response:

If your API request was successful, the marketstack API will return both pagination information as well as a data object, which contains a separate sub-object for each requested date/time and symbol. All response objects are explained below.

{
    "pagination": {
        "limit": 100,
        "offset": 0,
        "count": 100,
        "total": 50765
    },
    "data": [
        {
            "date": "2021-05-24",
            "dividend": 0.5,
            "symbol": "IAU"
        },
        [...]
    ]
}

API Response Objects:

Dividends Data:

Tickers Available on: All plans

Using the API's tickers endpoint you will be able to look up information about one or multiple stock ticker symbols as well as obtain end-of-day, real-time and intraday market data for single tickers. You will be able to find and try out an example API request below.

Example API Request:

Sign Up to Run API Requesthttps://api.marketstack.com/v1/tickers
    ? access_key = YOUR_ACCESS_KEY

Endpoint Features:

Parameters:

API Response:

{
    "pagination": {
        "limit": 100,
        "offset": 0,
        "count": 100,
        "total": 136785
    },
    "data": [
        {
            "name": "MICROSOFT CORP",
            "symbol": "MSFT",
            "stock_exchange": {
                "name": "NASDAQ Stock Exchange",
                "acronym": "NASDAQ",
                "mic": "XNAS",
                "country": "USA",
                "country_code": "US",
                "city": "New York",
                "website": "www.nasdaq.com",
            }
        },
        [...]
    ]
}

API Response Objects:

Tickers:

Exchanges Available on: All plans

Using the exchanges API endpoint you will be able to look up information any of the 70+ stock exchanges supported by marketstack. You will be able to find and try out an example API request below.

Example API Request:

Sign Up to Run API Requesthttps://api.marketstack.com/v1/exchanges
    ? access_key = YOUR_ACCESS_KEY

Endpoint Features:

Parameters:

API Response:

{
    "pagination": {
        "limit": 100,
        "offset": 0,
        "count": 71,
        "total": 71
    },
    "data": [
        {
            "name": "NASDAQ Stock Exchange",
            "acronym": "NASDAQ",
            "mic": "XNAS",
            "country": "USA",
            "country_code": "US",
            "city": "New York",
            "website": "www.nasdaq.com",
            "timezone": {
                "timezone": "America/New_York",
                "abbr": "EST",
                "abbr_dst": "EDT"
            }
        },
        [...]
    ]
}

API Response Objects:

Exchanges:

Currencies Available on: All plans

Using the currencies API endpoint you will be able to look up all currencies supported by the marketstack API. You will be able to find and try out an example API request below.

Example API Request:

Sign Up to Run API Requesthttps://api.marketstack.com/v1/currencies
    ? access_key = YOUR_ACCESS_KEY

Parameters:

API Response:

{
    "pagination": {
        "limit": 100,
        "offset": 0,
        "count": 40,
        "total": 40
    },
    "data": [
        {
            "code": "USD",
            "name": "US Dollar",
            "symbol": "$",
            "symbol_native": "$",
        },
        [...]
    ]
}

API Response Objects:

Currencies:

Timezones Available on: All plans

Using the timezones API endpoint you will be able to look up information about all supported timezones. You will be able to find and try out an example API request below.

Example API Request:

Sign Up to Run API Requesthttps://api.marketstack.com/v1/timezones
    ? access_key = YOUR_ACCESS_KEY

Parameters:

API Response:

{
    "pagination": {
        "limit": 100,
        "offset": 0,
        "count": 57,
        "total": 57
    },
    "data": [
        {
            "timezone": "America/New_York",
            "abbr": "EST",
            "abbr_dst": "EDT"
        },
        [...]
    ]
}

API Response Objects:

Timezones:

FAQ

Ensuring our customers achieve success is paramount to what we do at APILayer. For this reason, we will be rolling out our Business Continuity plan guaranteeing your end users will never see a drop in coverage. Every plan has a certain amount of API calls that you can make in the given month. However, we would never want to cut your traffic or impact user experience negatively for your website or application in case you get more traffic.

What is an overage?

An overage occurs when you go over a quota for your API plan. When you reach your API calls limit, we will charge you a small amount for each new API call so we can make sure there will be no disruption in the service we provide to you and your website or application can continue running smoothly.

Prices for additional API calls will vary based on your plan. See table below for prices per call and example of an overage billing.

Why does APILayer have overage fees?

Overage fees allow developers to continue using an API once a quota limit is reached and give them time to upgrade their plan based on projected future use while ensuring API providers get paid for higher usage.

How do I know if I will be charged for overages?

When you are close to reaching your API calls limit for the month, you will receive an automatic notification (at 75%, 90% and 100% of your monthly quota). However, it is your responsibility to review and monitor for the plan’s usage limitations. You are required to keep track of your quota usage to prevent overages. You can do this by tracking the number of API calls you make and checking the dashboard for up-to-date usage statistics.

How will I be charged for my API subscription?

You will be charged for your monthly subscription plan, plus any overage fees applied. Your credit card will be billed after the billing period has ended.

What happens if I don’t have any overage fees?

In this case, there will be no change to your monthly invoice. Only billing cycles that incur overages will see any difference in monthly charges. The Business Continuity plan is an insurance plan to be used only if needed and guarantees your end users never see a drop in coverage from you.

What if I consistently have more API calls than my plan allows?

If your site consistently surpasses the set limits each month, you may face additional charges for the excess usage. Nevertheless, as your monthly usage reaches a certain threshold, it becomes more practical to consider upgrading to the next plan. By doing so, you ensure a smoother and more accommodating experience for your growing customer base.

I would like to upgrade my plan. How can I do that?

You can easily upgrade your plan by going to your Dashboard and selecting the new plan that would be more suitable for your business needs. Additionally, you may contact your Account Manager to discuss a custom plan if you expect a continuous increase in usage.

Introducing Platinum Support - Enterprise-grade support for APILayer

Upgrade your APIlayer subscription with our exclusive Platinum Support, an exceptional offering designed to enhance your business’ API management journey. With Platinum Support, you gain access to a host of premium features that take your support experience to a whole new level.

What does Platinum Support include?

	Standard Support	Platinum Support
General review on the issue
Access to knowledge base articles
Email support communication
Regular products updates and fixes
Dedicated account team
Priority Email Support with unlimited communication
Priority bug and review updates
Option for quarterly briefing call with product Management
Features requests as priority roadmap input into product

Priority Email Support: Experience unrivaled responsiveness with our priority email support. Rest assured that your inquiries receive top-priority attention, ensuring swift resolutions to any issues.

Unlimited Communication: Communication is key, and with Platinum Support, you enjoy unlimited access to our support team. No matter how complex your challenges are, our experts are here to assist you every step of the way.

Priority Bug Review and Fixes: Bugs can be a headache, but not with Platinum Support. Benefit from accelerated bug review and fixes, minimizing disruptions and maximizing your API performance.

Dedicated Account Team: We understand the value of personalized attention. That's why Platinum Support grants you a dedicated account team, ready to cater to your specific needs and provide tailored solutions.

Quarterly Briefing Call with Product Team: Stay in the loop with the latest updates and insights from our Product team. Engage in a quarterly briefing call to discuss new features, enhancements, and upcoming developments.

Priority Roadmap Input: Your input matters! As a Platinum Support subscriber, your feature requests receive top priority, shaping our product roadmap to align with your evolving requirements.

Don't settle for the standard when you can experience the exceptional. Upgrade to Platinum Support today and supercharge your APIlayer experience!