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No project could be found with key '<project key>'.

From POST man am trying to get project details by key using the cloud jira APIS jira cloud API docs 

https://<mysite><peoject key>

its returning me 

    "errorMessages": [
        "No project could be found with key '<project key>'."
    "errors": {}

for authentication am using   username:<APIToken>  => this user has full access to that project.

by logging in using UI  that project is present  but  using API it return error No project could be found with key What will be the cause?

3 answers

1 accepted

1 vote
Answer accepted

I got this answer myself.

i auth header i was adding  <username>:<API Token> which was wrong

it should use  basic auth and  in place of password user API token then it has worked


But i still dont know why JIRA Rest APIs  not returning proper error message?  as this issue is related to authentication and its returning me project did not found. 

0 votes
Ulrich Kuhnhardt _IzymesCo_
Marketplace Partner
Marketplace Partners provide apps and integrations available on the Atlassian Marketplace that extend the power of Atlassian products.
May 09, 2022 • edited


my guess is that you copied the url from the API spec or somewhere else and did not change the <project_key> placeholder with the actual project key. Say you have a project with key 'SWAP' you would use the following url


Good luck,

Best Ulrich,


// We eliminate boring from work!

0 votes
Mohamed Benziane
Community Leader
Community Leader
Community Leaders are connectors, ambassadors, and mentors. On the online community, they serve as thought leaders, product experts, and moderators.
May 09, 2022


Did you respect the case ? The API is case sensitive (at least in Jira server)

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