MCPGroup

MCPGroup is a grouping construct for backend workloads. Other resources reference an MCPGroup by name to join a shared pool - for example, a VirtualMCPServer aggregates the tools exposed by every member of its referenced group.

API: toolhive.stacklok.dev/v1alpha1 · Scope: Namespaced · Short names: mcpg, mcpgroup

Example

mcpgroup.yaml

apiVersion: toolhive.stacklok.dev/v1alpha1
kind: MCPGroup
metadata:
  name: my-mcpgroup
  namespace: default
spec: {}

Schema

spec

MCPGroupSpec defines the desired state of MCPGroup

Field	Type	Description
description	string	Description provides human-readable context

status

MCPGroupStatus defines observed state

Field	Type	Description
conditions	object[]	Conditions represent observations
entries	string[]	Entries lists MCPServerEntry names in this group
entryCount	integer	EntryCount is the number of MCPServerEntries format int32
observedGeneration	integer	ObservedGeneration reflects the generation most recently observed by the controller format int64
phase	string	Phase indicates current state default "Pending" · enum: Ready | Pending | Failed
remoteProxies	string[]	RemoteProxies lists MCPRemoteProxy names in this group
remoteProxyCount	integer	RemoteProxyCount is the number of MCPRemoteProxies format int32
serverCount	integer	ServerCount is the number of MCPServers format int32
servers	string[]	Servers lists MCPServer names in this group

status.conditions[]

Conditions represent observations

Field	Type	Description
lastTransitionTimerequired	string	lastTransitionTime is the last time the condition transitioned from one status to another. This should be when the underlying condition changed. If that is not known, then using the time when the API field changed is acceptable. format date-time
messagerequired	string	message is a human readable message indicating details about the transition. This may be an empty string. maxLength 32768
observedGeneration	integer	observedGeneration represents the .metadata.generation that the condition was set based upon. For instance, if .metadata.generation is currently 12, but the .status.conditions[x].observedGeneration is 9, the condition is out of date with respect to the current state of the instance. format int64 · min 0
reasonrequired	string	reason contains a programmatic identifier indicating the reason for the condition's last transition. Producers of specific condition types may define expected values and meanings for this field, and whether the values are considered a guaranteed API. The value should be a CamelCase string. This field may not be empty. pattern ^[A-Za-z]([A-Za-z0-9_,:]*[A-Za-z0-9_])?$ · minLength 1 · maxLength 1024
statusrequired	string	status of the condition, one of True, False, Unknown. enum: True | False | Unknown
typerequired	string	type of condition in CamelCase or in foo.example.com/CamelCase. pattern ^([a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*/)?(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])$ · maxLength 316

↑ Back to status

Related resources

Referenced by:

• MCPRemoteProxy - via spec.groupRef
• MCPServer - via spec.groupRef
• MCPServerEntry - via spec.groupRef
• VirtualMCPServer - via spec.config.groupRef, spec.groupRef