{"expression":"0 9 * * 1-5","timezone":"America/Sao_Paulo","human_readable":"At 09:00 AM, Monday through Friday","next_runs":["2026-07-13T12:00:00.000Z","2026-07-14T12:00:00.000Z","2026-07-15T12:00:00.000Z"]}
curl --location --request GET 'https://zylalabs.com/api/13158/schedule+expression+parser+api/26704/parse+schedule+expression' --header 'Authorization: Bearer YOUR_API_KEY'
After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Schedule Expression Parser API simply include your bearer token in the Authorization header.
| Header | Description |
|---|---|
Authorization
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Required
Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.
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Understand and validate scheduler expressions before deploying them. One call parses the expression, computes the next execution times in the time zone you choose, and explains the schedule in plain language.
Useful for validating schedules in continuous integration, showing next run times in dashboards and admin panels, and explaining existing schedules to non-technical stakeholders.
The Parse Schedule Expression endpoint returns a JSON object containing the parsed scheduler expression, the next execution times as universal timestamps, a plain language description of the schedule, and an error message if the expression is invalid.
The key fields in the response data include "expression" (the original schedule expression), "timezone" (the specified time zone), "human_readable" (a plain language description), and "next_runs" (an array of upcoming execution timestamps).
The response data is organized in a JSON format with key-value pairs. It includes the original expression, the requested time zone, a human-readable description, and an array of next execution times, making it easy to parse and utilize programmatically.
The primary parameters for the endpoint are "expression" (the scheduler expression to parse) and "timezone" (the desired time zone for the execution times). Users can customize their requests by specifying these parameters.
Typical use cases include validating schedule expressions in CI/CD pipelines, displaying upcoming execution times in dashboards, and providing clear explanations of schedules to non-technical stakeholders, enhancing understanding and communication.
Users can utilize the returned data by integrating the next execution times into applications, displaying the human-readable description in user interfaces, and using the error messages to troubleshoot invalid expressions before deployment.
Data accuracy is maintained through robust parsing algorithms that validate scheduler expressions and handle daylight saving time correctly, ensuring that the computed execution times are reliable and accurate for the specified time zone.
Users can expect standard data patterns such as consistent formatting of timestamps in ISO 8601 format, clear human-readable descriptions, and structured error messages for invalid expressions, facilitating easy integration and error handling.
To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.
You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.
The free trial lasts for 7 days and allows you to make up to 50 API requests.
No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.
Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.
Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.
You can monitor your API usage through the response headers included with every request:
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