Marketstack

Marketstack is a REST API from APILayer that provides real-time, intraday, and historical stock market data. It offers access to exchange information, ticker quotes, end-of-day prices, stock splits, dividends, currencies, and timezones across global exchanges. Nexla connects to Marketstack as a data source using an API access key, letting you ingest market data on a schedule for analytics, reporting, and downstream pipelines.

Power end-to-end data operations for your Marketstack API with Nexla. Our bi-directional Marketstack connector is purpose-built for Marketstack, making it simple to ingest data, sync it across systems, and deliver it anywhere — all with no coding required. Nexla turns API-sourced data into ready-to-use, reusable data products and makes it easy to send data to Marketstack or any other destination. With comprehensive monitoring, lineage tracking, and access controls, Nexla keeps your Marketstack workflows fast, secure, and fully governed.

Features

Type: API

SourceDestination

• Seamless API Integration: Connect to any endpoint as source or destination without coding, with automatic data product creation
• Visual Composition & Chaining: Build complex integrations using visual templates, chain API calls, and compose workflows with data validation and filtering
• API Proxy: Expose curated slices of your data securely with a secure and customizable API proxy that validates and transforms data on the fly
• Request optimization with intelligent batching, retry, and caching to minimize API calls and costs

Prerequisites

Before creating a Marketstack credential, you need a Marketstack API access key. Marketstack authenticates every request with an access key that is passed as the access_key query parameter.

To obtain your API access key, follow these steps:

1. Sign up for an account at marketstack.com. Marketstack offers a free plan (250 requests per month) suitable for testing and development, along with paid plans for higher volumes and additional features such as intraday and real-time data.

2. Sign in to your account and open your Dashboard.

3. Locate your unique API Access Key on the dashboard. It is a long alphanumeric string displayed prominently on the account page.

4. Copy the access key and store it securely. You will enter it when creating your Nexla credential.

Treat the access key like a password, as it authorizes usage against your account and request quota. If your key is ever compromised, you can reset it from your Marketstack account dashboard. For details on endpoints, parameters, and plan limits, see the Marketstack API documentation.

Authenticate

Credentials required

Authenticate using your Marketstack API key passed as a query parameter or header.

Field	Required	Secret	Description
API Key Value	Yes	Yes	An encoded string value used as a secret token to authenticate API requests
Base URL	Yes	No	The base URL for the Marketstack API.

Create a credential in Nexla

1. After selecting the data source type, click the Add Credential tile to open the Add New Credential overlay.

2. Enter a name for the credential in the Credential Name field and a short, meaningful description in the Credential Description field.

3. Enter your Marketstack API access key in the API Key Value field. This is the access key you obtained in Prerequisites, and it is sent as the access_key query parameter on every request. This value is secret and should be kept confidential.

4. Enter the API base URL in the Base URL field. The default is https://api.marketstack.com/v1.

   If your API access key is compromised, reset it from your Marketstack account dashboard and update this credential with the new value.

   For detailed information about authentication, endpoints, and plan limits, see the Marketstack API documentation.

5. Click the Save button at the bottom of the overlay. The newly added credential will now appear in a tile on the Authenticate screen during data source creation.

Use as a data source

To create a new data flow, navigate to the Integrate section, and click the New Data Flow button. Select the Marketstack connector tile, then select the credential that will be used to connect to Marketstack, and click Next; or, create a new Marketstack credential for use in this flow.

Endpoint templates

Nexla provides pre-built templates that can be used to rapidly configure data sources to ingest data from common Marketstack endpoints. Select the endpoint from which this source will fetch data from the Endpoint pulldown menu. Available endpoint templates are listed in the expandable boxes below.

List Exchanges

Returns a list of all available stock exchanges supported by the API.

• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

List Tickers

Returns a list of all available stock tickers for a given exchange.

• Requires an Exchange parameter: the exchange code for which to list tickers.
• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

Get Historical Data

Returns end-of-day (EOD) historical price data for securities.

• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

List Stock Splits

Returns a list of stock split events for securities.

• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

List Dividends

Returns a list of dividend payment events for securities.

• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

List Tickers with Metadata

List all supported stock ticker symbols with metadata (name, symbol, exchange, country).

• Accepts an optional Offset parameter to set the starting offset for pagination (default 0).
• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

Get Latest EOD Price

Retrieve the most recent end-of-day price record for one or more symbols without specifying a date range.

• Requires a Symbols parameter: one or more comma-separated stock symbols.

Get Intraday Data

Retrieve intraday (tick-by-tick, 1-min, 5-min, 10-min) price data for one or more symbols.

• Requires a Symbols parameter: one or more comma-separated stock symbols.

Get Latest Intraday Price

Retrieve the latest intraday price tick for one or more symbols.

• Requires a Symbols parameter: one or more comma-separated stock symbols.

Get EOD Data for a Ticker

Retrieve end-of-day data scoped to a single ticker symbol.

• Requires a Symbol parameter: the stock ticker symbol.
• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

Get Intraday Data for a Ticker

Retrieve intraday data scoped to a single ticker symbol.

• Requires a Symbol parameter: the stock ticker symbol.
• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

Get Exchange by MIC

Retrieve metadata for a single exchange by its MIC code (name, acronym, country, timezone, currency, hours).

• Requires a MIC parameter: the Market Identifier Code of the exchange.

Get Ticker Metadata

Retrieve metadata for a single stock ticker (name, symbol, has_intraday, has_eod, exchange, country).

• Requires a Symbol parameter: the stock ticker symbol.

List Currencies

List all supported currencies with code, symbol, and name.

• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

List Timezones

List all supported timezone identifiers used across exchanges.

• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

Get EOD Data by Date

Returns end-of-day historical price data for one or more symbols on a specific date.

• Requires a Date parameter: the date for which to retrieve EOD data (format: YYYY-MM-DD).
• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

Get Intraday Data by Date

Returns intraday price data for one or more symbols on a specific date.

• Requires a Date parameter: the date for which to retrieve intraday data (format: YYYY-MM-DD).
• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

Get Ticker Splits

Returns historical stock split data scoped to a single ticker symbol.

• Requires a Symbol parameter: the stock ticker symbol for which to retrieve split history.
• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

Get Ticker Dividends

Returns historical dividend payment data scoped to a single ticker symbol.

• Requires a Symbol parameter: the stock ticker symbol for which to retrieve dividend history.
• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

Get Exchange EOD Data

Returns end-of-day price data for all tickers on a specific exchange, identified by MIC code.

• Requires a MIC parameter: the Market Identifier Code (MIC) of the exchange.
• This endpoint is paginated. Nexla automatically iterates through pages using offset-based pagination to retrieve the full set of results.

Once the selected endpoint template has been configured, click the Test button to the right of the endpoint selection menu to retrieve a sample of the data that will be fetched. Sample data will be displayed in the Endpoint Test Result panel on the right, allowing you to verify that the source is configured correctly before saving.

Manual configuration

Marketstack data sources can also be manually configured to ingest data from any valid Marketstack API endpoint, including endpoints not covered by the pre-built templates, chained API calls, or custom request parameters. Select the Advanced tab at the top of the configuration screen, and follow the instructions in Connect to Any API to configure the API method, endpoint URL, date/time and lookup macros, path to data, metadata, and request headers.

Once all of the relevant settings have been configured, click the Create button in the upper right corner of the screen to save and create the new Marketstack data source. Nexla will now begin ingesting data from the configured endpoint and will organize any data that it finds into one or more Nexsets.