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"Invalid token format" error

Rohit Agarwal
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June 26, 2025

Hi,

I am trying to hit https://mcp.atlassian.com/v1/sse endpoint using the API token in Authorization Bearer header. 

I have separate API tokens for Jira & Confluence. 

I keep getting the following "Invalid token format" response error. What is the expected token format?

{
  "error": "invalid_token",
  "error_description": "Invalid token format"
}

The request payload is as follows

{
  "jsonrpc": "2.0",
  "method": "tools/list",
  "params": {},
  "id": 1
}

I tried using the following headers

  • jira-token
  • jira-username
  • jira-url

The error response has changed to 

{
  "error": "invalid_token",
  "error_description": "Missing or invalid access token"
}

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