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Atlassian MCP stopped working, failing during OAuth flow

Eugene Myasyshchev
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September 29, 2025

Hi, I started getting OAuth errors when using the MCP server from cursor (was working well just few days ago). Now getting error below when trying to authenticate:

The redirect URI is not allowed, the URL is not part of Atlassian allowlisted domains for registered MCP Clients. Redirect URI cursor://anysphere.cursor-mcp/oauth/user-Atlassian-MCP-Server/callback

Using it via cursor, have it configured like below:

"Atlassian-MCP-Server": {

"url": "https://mcp.atlassian.com/v1/sse"

},

Is there anything missing on my end?

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