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FastCron API documentation

FastCron provides a simple API to list, create, and update your cron jobs with your API token. The API token can be found in the user menu > My Profile.

You can make API requests by sending an HTTP request to our API endpoint at

https://www.fastcron.com/api/v1/{function}

The endpoint accepts both GET and POST methods.

• For GET requests, you can send the payload in query format like url=example.com&expression=5 minutes.
• For POST requests, you can send the payload in query format as well as JSON format like {"url":"example.com", "expression": "5 minutes"}.

Authenticate by including your API token in the Authorization header, prefixed with Bearer. For example:

Authorization: Bearer YOUR_API_TOKEN

You can also add the token in the POST payload.

The response is in JSON format and includes these fields:

Name	Description
status	Either success or error.
code	The error code, 0 means ok/success.
data	Result data, available in success result only
message	The error message, available in error result only

Available functions:

• cron_list - List cronjobs under your account
• cron_get - Get a cron job
• cron_add - Add a new cronjob
• cron_edit - Update an existing cronjob
• cron_enable - Enable a cronjob
• cron_disable - Disable a cronjob
• cron_pause - Pause a cronjob for a specific duration
• cron_delete - Delete a cronjob
• cron_run - Schedule the cronjob to run
• cron_logs - Get your cronjob execution logs
• cron_failures - Get your cronjobs failed execution logs
• cron_next - Get next execution times of your cronjob
• cron_batch_add - Add multiple cronjobs at once
• cron_batch_delete - Delete multiple cronjobs at once

cron_list

List cronjobs under your account, up to 1000 items per page.

Name	Type	Description
page	?int	Page number
keyword	?string	Keyword to search cronjobs (name, ID, URL)

Returns an array of cron jobs.

cron_get

Get a cron job.

Name	Type	Description
id	integer	Cronjob ID

Returns the cronjob data like this:

{
  "data": {
    "id": 132,
    "expression": "41 3 * * 2",
    "timezone": "Europe/London",
    "url": "http://example.com/cron_php",
    "postData": "",
    "fail": 0,
    "status": 0,
    "name": "weekly",
    "notify": true,
    "points": 1
  },
  "status": "success",
  "code": 0
}

cron_add

Add a new cronjob.

Name	Type	Default	Description
url	string		URL to call
expression	string	15 minutes	Time expression. Must be either crontab syntax or time interval in English
delay	integer	0	Random delay (in minutes) before running your cronjob. No delay by default.
timezone	string	account timezone	Cronjob timezone
timeout	integer	30	Request timeout – max time to wait for your URL to response. Min 5 seconds.
instances	integer	0	Max overlapping cronjob executions: 0: unlimited, 1: single, 2–5: 2–5 overlapping executions
username	string	null	Username for HTTP authentication
password	string	null	Password for HTTP authentication
httpMethod	string	GET	HTTP method of the HTTP request to send to your cronjob URL
postData	string	null	When httpMethod is POST, PUT, or PATCH, send this post data with the HTTP request.
httpHeaders	string	null	Plain HTTP headers to send to your cronjob URL. Use new lines \r\n as delimiters.
userAgent	string	null	User agent, default is Mozilla/5.0 (compatible; FastCron/1.0; https://www.fastcron.com/)
notify	bool	true	Enable notification on failure.
keyword	string	null	Text to search for in the output. Max 100 characters.
name	string	null	Name of cronjob
run	integer	null	Run the created cron job immediately. Can use a Unix timestamp to schedule time.
payload	string	null	When run > 0, send the payload to run this time. See cron_run.

Returns the newly created cronjob.

cron_edit

Update an existing cronjob

Name	Type	Default	Description
id	integer		Cronjob ID
any	any	current value	Any parameter listed in cron_add parameters
run	integer	null	Run the updated cron job immediately. Can use a Unix timestamp to schedule time.
payload	string	null	When run > 0, send the payload to run this time. See cron_run.

Similar to cron_add, except that it'll update a specific cronjob with provided ID.

Returns the updated cronjob.

cron_enable

Enable a cronjob

Name	Type	Description
id	integer	Cronjob ID

Returns the updated cronjob.

cron_disable

Disable a cronjob

Name	Type	Description
id	integer	Cronjob ID

Returns the updated cronjob.

cron_pause

Pause a cronjob for a specific duration

Name	Type	Default	Description
id	integer		Cronjob ID
for	string	null	An expression for time modification e.g., 15 minutes, 1 hour, 1 day, etc.

Returns the paused cronjob.

cron_delete

Delete a cronjob

Name	Type	Description
id	integer	Cronjob ID

Returns the deleted cronjob, with ID set to null.

cron_run

Schedule the cronjob to run within a few seconds or at a specific time. This doesn't change the cronjob time settings.

Name	Type	Description
id	integer	Cronjob ID
time	integer	Timestamp to run cronjob
payload	string	Payload to send this time (read more below).

payload should be valid HTTP query string name=value&name2=value2 or valid JSON {"name": "value", "number": 1}.

• If cronjob's httpMethod is POST, PUT, or PATCH, payload will overwrite the cronjob's postData. If payload is valid JSON, FastCron will add Content-Type: application/json to the HTTP request headers.

• If cronjob's httpMethod is GET, HEAD, or DELETE, payload must be an HTTP query string and will append to the cronjob URL. FastCron automatically add ? or & before appending the payload so you don't need to.

You can also use keywords like __timestamp__ in your payload, which will be replaced with the current Unix timestamp when it runs.

Returns the timestamp which cronjob will run at.

cron_logs

Get your cronjob execution logs.

Name	Type	Description
id	integer	Cronjob ID
keyword	string	Keyword to search in execution time, output, IP addresses, error messages, etc.

Returns an array of cron execution results.

{
  "status": "success",
  "code": 0,
  "data": [
    {
      "result": {
        "id": 20037375,
        "time": 1789443086,
        "status": 0,
        "startTime": 1789443086,
        "downloaded": 19265,
        "httpStatus": 200,
        "error": "",
        "output": "...",
        "payload": null,
        "ip": "68.183.134.52",
        "server": "app3",
        "executionTime": 0.15
      }
    }, {...}
    ]
}

cron_failures

Get your cronjobs failed execution logs.

Name	Type	Description
id	integer	Cronjob ID
keyword	string	Keyword to search in execution time, output, IP addresses, error messages, etc.

Returns an array of cron execution results.

cron_next

Get next execution times of your cronjob.

Name	Type	Description
id	integer	Cronjob ID

Returns an array of queued/scheduled execution times (Unix timestamp). Max 100 results. Example response:

{ "status": "success", "code": 0, "data": [1723256352, 1723342752, 1723429152] }

cron_batch_add

Add multiple cronjobs at once/

Name	Type	Default	Description
data	array	null	Array of cron_add parameters except token.

This works only with requests in JSON format like this:

curl -X POST "https://www.fastcron.com/api/v1/cron_batch_add" \
-H 'Content-Type: application/json' \
-d '{"token":"***", "data":[{"url":"https://example.com", "expression":"1 hour"},{"url":"https://example.com", "expression":"1 day"}]}'

Returns an array of cron jobs.

cron_batch_delete

Delete multiple cronjobs at once.

Name	Type	Description
id	array	List of cronjob IDs

Returns an array of deleted cronjobs.

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Need help? Reach out to support@fastcron.com - we're happy to help.