Inforcer MCP Server

An MCP server for the Inforcer public API, the Microsoft 365 baseline management platform MSPs use to keep client tenants aligned to a standard. It lets an AI agent read managed tenants, baselines and alignment scores, a tenant's policies, Secure Score, Entra users / groups / roles and the activity log and, on explicit request, run assessments and queue reports. Nothing it does changes tenant policies.

• Transport: MCP Streamable HTTP at POST /mcp, health probe at GET /health

• Stateless and multi-tenant: credentials arrive on every request as HTTP headers and are never stored; every tool is listed from the first tools/list

• Also provides three MCP prompts: alignment-review, tenant-drift-detail (tenant), identity-posture-check (tenant)

• Python 3.12, uv, FastMCP, httpx

• License: Apache-2.0, Copyright 2026 MSPbots.ai

Authentication headers

Where to get them: an Inforcer API key is issued with scopes. Read-only use needs Tenants.Read (or the narrower Baselines.Read, AlignmentScores.Read, tenants.policies.Read, Tenants.Users.Read, Tenants.Groups.Read, Tenants.Roles.Read, Tenants.SecureScores.Read), plus Audit.Read, Assessments.Read and Reports.Read; Assessments.Run and Reports.Run are needed only for the two run tools.

How the key is sent to Inforcer: every call goes to https://api-{region}.inforcer.com/api/beta/... with the key in the Inf-Api-Key header.

A request to /mcp without both headers gets HTTP 401 naming the missing one; an unknown region gets HTTP 400.

Related MCP server: Entra ID SecOps MCP Server

Tools

All tools return a JSON string. A tenant argument accepts the numeric Client Tenant ID, the Microsoft tenant GUID, the tenant DNS name or its exact friendly name (an ambiguous name returns the matching ids). write marks tools that create work in Inforcer.

Errors come back as a JSON envelope instead of an exception:

{"error": {"code": "unauthorized", "message": "Inforcer returned HTTP 403 for beta/tenants/139/policies: Client tenant verification failed", "retryable": false}}

code is one of not_configured, unauthorized, not_found, invalid_argument, rate_limited, upstream_error. Inforcer can also answer HTTP 200 with success: false; that is reported as an error too. Reads are retried with backoff on 429, 5xx and network errors; writes only on 429.

Run locally

uv sync
uv run python -m inforcer_mcp          # listens on 0.0.0.0:8080

or with Docker:

docker build --platform linux/amd64 -t inforcer-mcp:dev .
docker run --rm -p 8080:8080 inforcer-mcp:dev

Configuration (environment variables, all optional): MCP_HTTP_HOST (default 0.0.0.0), MCP_HTTP_PORT (default 8080), LOG_LEVEL (default INFO). Credentials are never read from the environment.

Testing example

# list tools
curl -s http://localhost:8080/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -H "X-Inforcer-Region: us" \
  -H "X-Inforcer-Api-Key: your-inforcer-api-key" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'

# alignment of one tenant
curl -s http://localhost:8080/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -H "X-Inforcer-Region: us" \
  -H "X-Inforcer-Api-Key: your-inforcer-api-key" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"inforcer_alignment_details","arguments":{"tenant":"example.onmicrosoft.com"}}}'

Unit tests (no network access needed):

uv run pytest

Delivery notes

• Tool count (24) and prompts (3). Kept as is because the names are an existing contract.

• API source. Inforcer does not publish public API documentation; routes, parameters and envelopes follow Inforcer's own OpenAPI document ("inforcer | Public API") as captured by the MIT-licensed community PowerShell module InforcerCommunity, and its API reference.

• Alignment details fixed. The API requires the baseline to compare against (customBaselineId); older versions never sent it. inforcer_alignment_details now takes an optional baseline (GUID or exact name) and, when omitted, uses the only baseline the tenant is a member of, or lists the candidates.

• Report run status reads the run's status from the run list and fetches outputs only for finished runs (the outputs route answers 404 while a run is pending, failed or unknown).

• Report downloads stay small. csv / html / json outputs are returned as text (first 15,000 characters); a PDF is returned as base64 only when under 10 KB, otherwise its metadata with a note. Older versions inlined any file as base64.

• Smaller results. The tenant list leaves out each tenant's policy diff text and licenses (inforcer_tenants_get has them); the policy list leaves out the full policy settings unless include_settings is true; baselines report their policy item count instead of the items.

• New optional parameters: baseline on alignment details, user on audit search, include_settings on the policy list.

• Tenant names must match exactly (case-insensitive); an ambiguous name returns the matching ids instead of picking one.

License

Apache License 2.0 - see LICENSE and NOTICE.