ERROR CODES

HTTPS

All API requests must be made using HTTPS. Requests made over HTTP will fail.

API status

You can see the current status and response times for the Nasdaq Data Link API here.

HTTP/Nasdaq Data Link error codes

The Nasdaq Data Link API returns standard HTTP status codes to indicate the success or failure of all requests.

  • A 2XX response indicates that the request was processed successfully.

  • A 4XX response indicates that there was something wrong with the request.

  • A 5XX response indicates that the server encountered an error while processing the request.

In addition to HTTP status codes, the Nasdaq Data Link API returns custom error messages for specific error types. These are tabulated below:

Nasdaq Data Link Error CodeHTTP Status CodeDescription
QELx01429You have exceeded your daily call limit as an anonymous user.
QELx02429You have exceeded your daily call limit as a registered user.
QELx03429You have exceeded your daily call limit as a subscriber.
QELx04429You have exceeded your 10-minute call limit as a registered user.
QELx05429You have exceeded your 10-minute call limit as a subscriber.
QELx06422You have requested too many rows of data.
QELx07414Your request query parameters are too long.
QELx08413The amount of data you are trying to return is too large. You need to narrow the data returned with filters.
QEAx01400We could not recognize your API key. Please check your API key and try again. You can find your API key under your account settings.
QEAx02422Your login credentials are invalid.
QEAx03403You must have an API key to access this resource.
QEPx01401You have attempted to view a protected resource in anonymous mode, i.e., without providing an API key. Please register for a free Nasdaq Data Link account and then include your API key with your requests.
QEPx02403You do not have permission to use this endpoint.
QEPx04403You do not have permission to view this dataset OR you have exceeded your quota of free trials for this dataset. Please subscribe to this dataset to get more views or downloads.
QEPx05403You have attempted to view a premium dataset in anonymous mode, i.e., without providing an API key. Please log in or register for a free Nasdaq Data Link account and then include your API key with your requests.
QEPx06403You do not have access to view part of the data requested (e.g., column).
QESx02422You are missing a required parameter or its value is empty. Please check your parameters and try again.
QESx03422You have submitted incorrect parameters for creating/updating this resource. Please check your API call syntax and try again.
QESx04422You have submitted incorrect query parameters. Please check your API call syntax and try again.
QESx05406You have requested an unknown format. Please check the format you requested and try again.
QESx06400You have used an invalid cursor or page ID with your query. Please check your query and try again.
QESx07422You have used an unsupported operator for your query parameters. Please check and try again.
QESx08422You have tried to filter a column that is not available for filtering. Please remove and try again.
QESx09400The syntax of your query parameters is incorrect. Please check the syntax and try again.
QECx01400Unknown API route. We could not recognize the URL you requested. Please check your URL and try again.
QECx02404You have submitted an incorrect Table code. Please check your Table codes and try again.
QECx03404We could not find the resource you requested. Please check your URL and try again.
QECx04404The referral code is invalid. Please try again.
QECx05422The URL you requested is incorrect. You may be presented with an alternative URL to use instead.
QECx06404You cannot make API calls to this dataset. This dataset has been deprecated. Please contact [email protected] for further information.
QEMx01500Something went wrong. Please try again. If you continue to have problems, please contact us at [email protected]
QEXx01503The request took too long. Please try again later.
QEXx02502We are experiencing connectivity issues. Please try again later.
QEXx03500Something went wrong. Please try again. If you continue to have problems, please contact us at [email protected].