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Where can I find the client_secret?

Occasional Contributor

Where can I find the client_secret?

Hello API developers,


Can you please help me with below questions?


  • Where can I find the client_secret? I didn't find it in "My application".API Q1.jpg
  • I failed to get the token as shown in the picture below. I thought that the issue may be caused by the lack of client_secret. Could you please tell me how to get the result response like what your docs told? (with cURL or nodejs)

API Q2.jpg


  • How to get this?

API Q3.jpg


Awaiting for reply!



Re: Where can I find the client_secret?

Hello @SilviaG20,


Thank you for reaching out to Constant Contact's API Support.


In the My Applications page you can click on the API Key. On that page there is a button to click on to generate your Client Secret. The secret is only shown once so you will need to save this somewhere. If you click on the button again it will generate a new secret and negate the previous secret.

Jimmy D.
Tier II API Support Engineer
Occasional Contributor

Re: Where can I find the client_secret?

Hi Jimmy,


Thanks for your help! We've found the client_secret.


Have a nice day!