Rovo MCP setup with codex for bitbucket

[Scott Fraser]

I'm trying to get Rovo MCP setup with codex for bitbucket but getting similar errors
I've configured ~/.codex/config.toml

[mcp_servers."atlassian-rovo-mcp"]
url = "https://mcp.atlassian.com/v1/mcp"
http_headers = { Authorization = "Basic xxxx"}

codex.list_mcp_resources({}) is empty 

and when calling getTeamworkGraphContext 
"TWG request failed: 401 Unauthorized. slauthtoken: authorization header found, 'slauth' prefix missing"}

I can't use OAuth as its currently no supported in bitbucket and not an admin so can't make Bearer token
I'm new to this, any ideas what I'm missing?
Think it's similar to https://community.atlassian.com/forums/Rovo-questions/Claude-Code-Rovo-MCP-API-Token-Authentication/qaq-p/3211969