VMware Aria Operations MCP Skill

Note: In VCF 9.0 and later, VMware Aria Operations has been rebranded as VCF Operations. This skill works against both names — the /suite-api/ REST endpoints are unchanged.

Author: Wei Zhou, VMware by Broadcom — wei-wz.zhou@broadcom.com This is a community-driven project by a VMware engineer, not an official VMware product. For official VMware developer tools see developer.broadcom.com.

AI-assisted monitoring and capacity planning for VMware Aria Operations (vRealize Operations) via the Model Context Protocol (MCP).

Overview

vmware-aria exposes 44 MCP tools for interacting with Aria Operations through natural language AI agents (Claude Code, Cursor, Goose, etc.):

Total: 44 tools — 34 read-only, 10 write

Quick Start

# Install
uv tool install vmware-aria

# Configure
mkdir -p ~/.vmware-aria
cat > ~/.vmware-aria/config.yaml << 'EOF'
targets:
  prod:
    host: aria-ops.example.com
    username: admin
    port: 443
    verify_ssl: true
    auth_source: LOCAL
default_target: prod
EOF

# Set password (never in config.yaml)
echo "VMWARE_ARIA_PROD_PASSWORD=your_password" > ~/.vmware-aria/.env
chmod 600 ~/.vmware-aria/.env

# Verify setup
vmware-aria doctor

Offline / Air-Gapped Install (from source)

This project uses the modern PEP 517 build system (hatchling), so there is no setup.py by design — that is expected, not a missing file. If you cloned the source and hit ERROR: File "setup.py" or "setup.cfg" not found ... editable mode currently requires a setuptools-based build, your pip is older than 21.3 and cannot do an editable (-e) install with a non-setuptools backend. Editable mode is a developer convenience, not needed to run the tool — do one of:

# From the source tree — a normal (non-editable) install builds a wheel:
pip install .              # NOT  pip install -e .

# ...or upgrade pip first, and editable works too:
pip install --upgrade pip && pip install -e .

For a truly air-gapped host, build the wheels on a connected machine and copy them over — the target then needs no network:

# On a connected machine, collect this package + its dependencies as wheels:
pip wheel . -w dist        # → dist/*.whl   (or: uv build, for just this package)

# Copy dist/ to the air-gapped host, then install offline:
pip install --no-index --find-links dist vmware-aria

CLI Examples

# List top CPU consumers
vmware-aria resource top --metric 'cpu|usage_average' --top 10

# Check active CRITICAL alerts
vmware-aria alert list --criticality CRITICAL

# Acknowledge an alert
vmware-aria alert acknowledge <alert-id>

# Fetch 4-hour CPU + memory metrics for a VM ("missing" says why a key has no points)
vmware-aria resource metrics <vm-id> --metrics 'cpu|usage_average,mem|usage_average' --hours 4

# Check cluster capacity
vmware-aria capacity remaining <cluster-id>
vmware-aria capacity time-remaining <cluster-id>

# Find rightsizing opportunities (vCPU / memory now → recommended, direction, actionable)
vmware-aria capacity rightsizing

# Check Aria platform health: HEALTHY / DEGRADED / DOWN / UNKNOWN, per service, plus version
vmware-aria health status
vmware-aria health collectors

# Is the Aria node short of memory? Which adapter stopped collecting?
vmware-aria health node
vmware-aria health adapters

# Look up the metric keys a VM reports before querying them
vmware-aria resource keys <vm-id> --filter 'mem|'

# Put a host in maintenance for 2 hours before planned work, then end it (asks once; --dry-run prints the API call)
vmware-aria maintenance start <host-id> --duration 120
vmware-aria maintenance end <host-id>

# Record who is handling an alert, and read what Aria recommends
vmware-aria alert note-add <alert-id> "Taking this: rebooting esx-03"
vmware-aria alert recommendations <alert-id>

MCP Setup (Claude Code)

After uv tool install vmware-aria, add to ~/.claude.json:

{
  "mcpServers": {
    "vmware-aria": {
      "command": "vmware-aria",
      "args": ["mcp"],
      "env": {
        "VMWARE_ARIA_CONFIG": "~/.vmware-aria/config.yaml"
      }
    }
  }
}

v1.5.15+ uses the single-command form vmware-aria mcp. The legacy vmware-aria-mcp console script is still kept for backward compatibility. If you must use uvx --from vmware-aria vmware-aria mcp (no install) and hit invalid peer certificate: UnknownIssuer behind a corporate TLS proxy, set UV_NATIVE_TLS=true or use the recommended vmware-aria mcp form above.

Then use natural language:

• "Show me the top 10 CPU consumers right now"
• "List all CRITICAL alerts and acknowledge them"
• "How long until the prod cluster runs out of memory?"
• "Which VMs are over-provisioned? Show rightsizing recommendations"
• "Are there any anomalies on vm-web-01?"

Authentication

Aria Operations uses vRealizeOpsToken authentication:

POST /suite-api/api/auth/token/acquire
{"username": "admin", "password": "...", "authSource": "LOCAL"}
→ {"token": "abc123", "validity": 1765182896000}  # validity = expiry epoch ms

Subsequent requests: Authorization: vRealizeOpsToken abc123

Tokens have a 6-hour sliding validity (extended on each call, per the official spec); the client re-acquires automatically 60 seconds before expiry. The validity field is the expiry timestamp in epoch milliseconds, not a duration.

Architecture

User (natural language)
  ↓
AI Agent (Claude Code / Goose / Cursor)
  ↓  [reads SKILL.md]
vmware-aria MCP server (stdio transport)
  ↓  [HTTPS + vRealizeOpsToken]
Aria Operations Suite API
  ↓
VMs / Hosts / Clusters / Alerts / Capacity

Companion Skills

Security

• Passwords loaded from env vars or .env file, never from config.yaml
• Every MCP tool call and every CLI command that reaches Aria audit-logged to ~/.vmware/audit.db (via vmware-policy); CLI write operations (alert acknowledge/cancel, alert notes, alert definition management, report generate/delete, resource maintenance start/end) also append to ~/.vmware-aria/audit.log
• API responses sanitized (control chars stripped, 500-char limit) to prevent prompt injection
• MCP destructive writes (alert acknowledge/cancel, alert definition and report delete, maintenance start/end) take confirm (default false): without confirm=true they return a blast_radius of what would change and change nothing; confirm=true is refused on a blocker (e.g. a resource already in maintenance) or an unreadable field. confirmed is a deprecated alias
• TLS verification is on by default; for a private CA set SSL_CERT_FILE to a bundle with your CA (see setup guide). verify_ssl: false is for isolated self-signed labs only

Official Broadcom References

• REST APIs: https://developer.broadcom.com/xapis — VCF Operations API (formerly Aria Operations suite-api)
• SDKs: https://developer.broadcom.com/sdks — VCF Python SDK
• CLI Tools: https://developer.broadcom.com/tools — PowerCLI 9.1 includes "VCF Operations (formerly vRealize Operations Manager)" cmdlets

License

MIT — see LICENSE