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vamsitejeswar

azure-billing-mcp-server

by vamsitejeswar
OverviewSchemaRelated ServersScoreDiscussions
Python
Remote

azure-billing-mcp-server

MCP server for actual Azure spend / cost analysis via the Azure Cost Management Query API. Deployed to Google Cloud Run for use with Gemini Enterprise.

Architecture

User in Gemini Enterprise
        |
        v
Gemini Enterprise -> Entra ID OAuth (login.microsoftonline.com)
        |  receives access token (scope: api://<client-id>/mcp.access)
        v
MCP Server (Cloud Run, access gated by IAM -- see GEMINI_SETUP.md)
  BearerTokenMiddleware captures the token for audit logging only --
  it is NOT forwarded to Azure (wrong audience for management.azure.com)
        |
        v
  Server's own service principal credentials -> Azure Cost Management API
        |
        v
Response back to Gemini -> User

This is a deliberate difference from a same-app OAuth setup (where the forwarded token would be directly reusable against the downstream API): here the Entra app used for login and the service principal used for billing data are two separate identities, so the incoming token is logged for visibility but never used to call Azure. See GEMINI_SETUP.md for the full reasoning.

Related MCP server: cloudscope-mcp

Files

server.py           # everything: FastMCP app, Azure Cost Management client,
                     # all 6 tools, and the entrypoint -- one file on purpose
requirements.txt
Dockerfile
deploy_cloudrun.sh   # deploy + IAM grant + placeholder secret creation
.env.example         # for local runs
CREDENTIALS.md       # Azure Cost Management service principal setup/rotation
GEMINI_SETUP.md       # OAuth fields, IAM grant, troubleshooting for Gemini Enterprise

Tools

list_subscriptions, query_costs, get_cost_by_service, get_cost_by_resource_group, get_daily_cost_trend, get_top_resources_by_cost

Two separate credentials -- don't confuse them

  • Entra ID app (gemini-enterprise-mcp) -- only for Gemini Enterprise's OAuth consent screen. See GEMINI_SETUP.md.

  • Azure Cost Management service principal -- what this server actually uses to query Azure. See CREDENTIALS.md.

Who's allowed to call this server is Cloud Run IAM, not an in-app token check -- see GEMINI_SETUP.md for why.

Local development

python -m venv venv && source venv/bin/activate
pip install -r requirements.txt
cp .env.example .env   # fill in the three AZURE_* values
python server.py        # http://0.0.0.0:8000/mcp

Deploy

gcloud auth login
gcloud config set project <your-gcp-project-id>
gcloud services enable run.googleapis.com secretmanager.googleapis.com discoveryengine.googleapis.com
# edit the identifiers at the top of deploy_cloudrun.sh, then:
bash deploy_cloudrun.sh

Then follow GEMINI_SETUP.md for the Entra ID app registration and the values to paste into Gemini Enterprise's data store form.

This server cannot be installed

F
license - not found
-
quality - not tested
C
maintenance

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