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GET
Check what this deployment's environment surface supports

Authorizations

Authorization
string
header
required

MCPJam API key (sk_…). Create one at Settings → API keys. Guest sessions cannot use the API, and API keys cannot manage other API keys.

Path Parameters

projectId
string
required

ID of the hosted project that contains the server.

Response

The deployment's environment capabilities.

modelOverrides
boolean
required

modelId is accepted on environment create and update.

modelMatrix
boolean
required

Environment cells may vary by model on one host (the compare grid).

ephemeralEnvironmentLaunch
boolean

startTestSuiteRun / the v1 group route accept ephemeralEnvironment — a project-scoped env may launch without suite membership. Absent or false on older backends.

skillVersionPins
boolean

skillSelection.versionPins and serverSkillSelection.versionPins are accepted, and a pinned revision survives into run snapshots. Absent or false on older backends, which reject the unknown field outright — probe this before offering a version picker.

secretGrants
boolean

secretSelection is accepted on environment create, update and ensure-adhoc, so an environment can carry a credential grant. Absent or false on older backends, which reject the unknown field with a validator error naming nothing — probe this before sending a grant.