mccimc 2026.6.13

MCP server for Cisco UCS CIMC (3.x/4.x firmware) — multi-CIMC registry over HTTP

mccimc

MCP server for Cisco UCS C-series CIMC management. Drive multiple CIMCs from one HTTP-served MCP endpoint, configurable as a list of known boxes.

What it does

Exposes the CIMC XML API as 20-ish typed MCP tools:

• Discovery — cimc_list, cimc_ping
• Info / inventory — cimc_info, cimc_inventory, cimc_nics
• Sensors — cimc_sensors (temperature, power)
• Power — cimc_power_status, cimc_power (on/off/cycle/reset/soft-off/bmc-reset)
• Virtual media — cimc_vmedia_list, cimc_vmedia_mount, cimc_vmedia_unmount
• SoL — cimc_sol_status, cimc_sol_enable, cimc_sol_disable
• Convenience — cimc_locator_led (front-panel LED on/off)
• KVM — cimc_kvm_jnlp (fetch JNLP for the Java viewer)
• Escape hatches — cimc_get_mo, cimc_get_children, cimc_modify_mo for things no specific tool covers

Install

uvx mccimc                              # one-shot run
# or
uv tool install mccimc                  # persistent install

Configure

Create ~/.config/mccimc/cimcs.toml:

[[cimcs]]
name = "cimc01"
host = "cimc01.example.net"
password_env = "CIMC01_PASS"
cert_path = "~/cimc-certs/cimc01.pem"
description = "Lab box"

Then export the password env vars:

export CIMC01_PASS='...'

See cimcs.example.toml for the full schema.

Run

mccimc                                  # HTTP on 127.0.0.1:7902/mcp
mccimc --transport stdio                # for local Claude Code embedding
mccimc --host 0.0.0.0 --port 8080       # LAN-accessible
mccimc --check                          # validate config and exit

Connect

Add to your Claude Code MCP config:

claude mcp add cimc --transport http http://127.0.0.1:7902/mcp

Or for stdio (no need to start mccimc separately):

claude mcp add cimc --scope user -- uvx mccimc --transport stdio

Example session (LLM-driven)

> Which CIMCs do I have?
[cimc_list] → [{"name": "cimc01", ...}, {"name": "cimc02", ...}]

> Is cimc01 powered on?
[cimc_power_status cimc="cimc01"] → {"operPower": "on", "adminPower": "policy"}

> What's it drawing?
[cimc_sensors cimc="cimc01"] → {"power": {"consumedPower": "144", ...}}

> Mount the installer
[cimc_vmedia_mount cimc="cimc01" url="http://198.51.100.10/install.iso" name="install"]

CIMC firmware compatibility

Tested against CIMC 3.0(4s) (UCSC-C220-M3S). The MO schema is largely stable across 3.x and 4.x C-series firmware — most tools should work unchanged. M5/M6 (4.x firmware) adds more sensors and exposes per-port NIC link state; tools that read these will just have more data.

Known firmware quirks documented in tool docstrings:

• commVMediaMap.adminAction enum only accepts save-unmapped-volume (so mount_vmedia omits adminAction, unmount_vmedia uses status="deleted")
• WWW vMedia URLs must omit explicit ports on 3.0(4s) (use port 80 or 443 implicitly, not :8888).
• Java KVM tokens are session-scoped — cimc_kvm_jnlp deliberately leaves the XML session open.

Author

Ryan Malloy [e-mail]

License

MIT