> ## Documentation Index > Fetch the complete documentation index at: https://checkfu.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Create a Computer > Creates one sleeping provider-neutral Computer from an active immutable ComputerProfileRevision after checking the declared Principal or Session scope. This operation allocates no provider resource and returns no lease or private provider coordinates. Send Idempotency-Key so an interrupted create resolves to the same Computer and controller command. Checkfu support posture: alpha; hosted. No release evidence journey applies to this operation. ## OpenAPI ````yaml /openapi.json post /v1/computers openapi: 3.1.0 info: title: Checkfu API version: '2026-08-27' description: >- Authentication is declared per operation: API-key, runtime, or connector bearer; Automation signature; or credential-free pairing redemption. Every general Checkfu REST request requires the dated `Checkfu-Version` header (one of: 2026-08-27); the three MCP JSON-RPC transports use `MCP-Protocol-Version`, A2A uses `A2A-Version`, and the provider OAuth callback carries neither Checkfu header. API keys resolve one Workspace without a request selector; authenticated responses identify it with `Checkfu-Workspace-Id`. servers: - url: https://api.checkfu.com security: - bearerAuth: [] tags: - name: organizations - name: sourceRepositories - name: tenants - name: workspaces - name: principals - name: principalGroups - name: principalAccessCredentials - name: apiKeys - name: agents - name: harnesses - name: harnessRuntime - name: sandboxProfiles - name: computerProfiles - name: permissionAssignments - name: actionPolicies - name: files - name: memoryStores - name: dreams - name: modelCredentials - name: modelRoutingProfiles - name: blueprintInstallations - name: toolSources - name: skills - name: skillSources - name: agentSources - name: skillProposals - name: instructionProposals - name: catalog - name: concepts - name: support - name: connections - name: connectionVaults - name: connectionAssignments - name: connectedRuntimes - name: projects - name: collaboration - name: automationGraphs - name: automations - name: actionApprovals - name: standingApprovals - name: usage - name: models - name: outcomes - name: budgets - name: billing - name: sessions - name: audit - name: sessionExports - name: runs - name: runnerPools - name: transcripts - name: sessionWatches - name: webhookEndpoints - name: integrationGateway - name: agentDeployments - name: workEnvironments - name: computers - name: computerScreens - name: computerBrowserObservations - name: computerBrowserActions - name: environments - name: vaults - name: apiMcp - name: a2a paths: /v1/computers: post: tags: - computers summary: Create a Computer description: >- Creates one sleeping provider-neutral Computer from an active immutable ComputerProfileRevision after checking the declared Principal or Session scope. This operation allocates no provider resource and returns no lease or private provider coordinates. Send Idempotency-Key so an interrupted create resolves to the same Computer and controller command. Checkfu support posture: alpha; hosted. No release evidence journey applies to this operation. operationId: computers.createComputer parameters: - name: checkfu-version in: header schema: type: string enum: - '2026-08-27' required: true - name: idempotency-key in: header schema: type: string allOf: - maxLength: 255 required: false requestBody: content: application/json: schema: type: object properties: scope: $ref: '#/components/schemas/Union_390' profile_id: $ref: '#/components/schemas/ComputerProfileId' profile_revision_number: type: integer allOf: - exclusiveMinimum: 0 requested_at: $ref: '#/components/schemas/CurrentTimestamp' deadline: $ref: '#/components/schemas/CurrentTimestamp' required: - scope - profile_id - profile_revision_number - requested_at - deadline additionalProperties: false required: true responses: '201': description: >- coherent timestamps, archive state, and snapshot-backed recovery grade content: application/json: schema: type: object properties: id: $ref: '#/components/schemas/ComputerId' workspace_id: $ref: '#/components/schemas/WorkspaceId' scope: $ref: '#/components/schemas/Union_390' profile_id: $ref: '#/components/schemas/ComputerProfileId' profile_revision_number: type: integer allOf: - exclusiveMinimum: 0 state: $ref: '#/components/schemas/Union_391' generation: type: integer allOf: - minimum: 0 current_snapshot_id: anyOf: - $ref: '#/components/schemas/ComputerSnapshotId' - type: 'null' recovery_grade: $ref: '#/components/schemas/Union_392' resource_version: type: integer allOf: - exclusiveMinimum: 0 created_at: $ref: '#/components/schemas/CurrentTimestamp' updated_at: $ref: '#/components/schemas/CurrentTimestamp' archived_at: anyOf: - $ref: '#/components/schemas/CurrentTimestamp' - type: 'null' required: - id - workspace_id - scope - profile_id - profile_revision_number - state - generation - current_snapshot_id - recovery_grade - resource_version - created_at - updated_at - archived_at additionalProperties: false headers: checkfu-workspace-id: description: The Workspace resolved from the authenticated bearer credential. required: true schema: $ref: '#/components/schemas/WorkspaceId' '400': description: Typed Checkfu wire error content: application/json: schema: type: object required: - error properties: error: type: object properties: type: type: string enum: - validation.malformed message: type: string more: type: string enum: - >- https://docs.checkfu.com/reference/errors#validation-malformed description: >- Stable public documentation and remedy for this error type. required: - type - message - more additionalProperties: false additionalProperties: false '401': description: Typed Checkfu wire error content: application/json: schema: type: object required: - error properties: error: type: object required: - type - message - more properties: type: type: string enum: - auth.invalid_key message: type: string more: type: string enum: - >- https://docs.checkfu.com/reference/errors#auth-invalid-key description: >- Stable public documentation and remedy for this error type. additionalProperties: false additionalProperties: false '403': description: >- The organization, tenant, or workspace backing this key is administratively disabled. | Deployment governance or retention policy denied the request. content: application/json: schema: anyOf: - type: object required: - error properties: error: type: object properties: type: type: string enum: - auth.disabled_tenancy message: type: string more: type: string enum: - >- https://docs.checkfu.com/reference/errors#auth-disabled-tenancy description: >- Stable public documentation and remedy for this error type. required: - type - message - more additionalProperties: false additionalProperties: false - $ref: '#/components/schemas/PolicyDeniedError' '404': description: >- The requested resource does not exist in the resolved deployment boundary. content: application/json: schema: $ref: '#/components/schemas/ValidationNotFoundError' '409': description: >- The request conflicts with the resource's current state. | An idempotent mutation conflicts with a completed or in-progress request for the same key. content: application/json: schema: anyOf: - $ref: '#/components/schemas/ValidationConflictError' - $ref: '#/components/schemas/IdempotencyConflictError' '429': description: Typed Checkfu wire error headers: retry-after: description: >- Delay in seconds for rate limits or deployment quotas with a known release or UTC reset boundary required: false schema: type: integer minimum: 1 content: application/json: schema: type: object required: - error properties: error: type: object required: - type - message - more properties: type: type: string enum: - budget.exceeded message: type: string more: type: string enum: - >- https://docs.checkfu.com/reference/errors#budget-exceeded description: >- Stable public documentation and remedy for this error type. additionalProperties: false additionalProperties: false '500': description: >- An unexpected internal failure occurred; the message contains an opaque incident reference. content: application/json: schema: $ref: '#/components/schemas/RuntimeInternalError' security: - bearerAuth: [] components: schemas: Union_390: anyOf: - type: object properties: type: type: string enum: - principal principal_id: $ref: '#/components/schemas/PrincipalId' required: - type - principal_id additionalProperties: false - type: object properties: type: type: string enum: - application external_scope: type: string allOf: - pattern: ^[a-z0-9](?:[a-z0-9._-]{0,93})$ required: - type - external_scope additionalProperties: false - type: object properties: type: type: string enum: - session session_id: $ref: '#/components/schemas/SessionId' required: - type - session_id additionalProperties: false ComputerProfileId: type: string allOf: - pattern: ^cprof_[0-9a-f]{32}$ CurrentTimestamp: type: string allOf: - maxLength: 24 - pattern: ^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{3}Z$ description: A canonical UTC ISO-8601 timestamp with millisecond precision. ComputerId: type: string allOf: - pattern: ^comp_[0-9a-f]{32}$ WorkspaceId: type: string allOf: - pattern: ^wrkspc_[0-9a-f]{32}$ Union_391: type: string enum: - sleeping - waking - ready - recovering - needs_recovery - disabling - disabled - archiving - archived ComputerSnapshotId: type: string allOf: - pattern: ^csnp_[0-9a-f]{32}$ Union_392: type: string enum: - none - filesystem - browser_profile - full_instance PolicyDeniedError: type: object properties: error: type: object properties: type: type: string enum: - policy.denied message: type: string more: type: string enum: - https://docs.checkfu.com/reference/errors#policy-denied description: Stable public documentation and remedy for this error type. required: - type - message - more additionalProperties: false required: - error additionalProperties: false description: Deployment governance or retention policy denied the request. ValidationNotFoundError: type: object properties: error: type: object properties: type: type: string enum: - validation.not_found message: type: string more: type: string enum: - https://docs.checkfu.com/reference/errors#validation-not-found description: Stable public documentation and remedy for this error type. required: - type - message - more additionalProperties: false required: - error additionalProperties: false description: >- The requested resource does not exist in the resolved deployment boundary. ValidationConflictError: type: object properties: error: type: object properties: type: type: string enum: - validation.conflict message: type: string more: type: string enum: - https://docs.checkfu.com/reference/errors#validation-conflict description: Stable public documentation and remedy for this error type. required: - type - message - more additionalProperties: false required: - error additionalProperties: false description: The request conflicts with the resource's current state. IdempotencyConflictError: anyOf: - $ref: '#/components/schemas/ValidationIdempotencyConflictError' - $ref: '#/components/schemas/ValidationIdempotencyInProgressError' description: >- An idempotent mutation conflicts with a completed or in-progress request for the same key. RuntimeInternalError: type: object properties: error: type: object properties: type: type: string enum: - runtime.internal message: type: string more: type: string enum: - https://docs.checkfu.com/reference/errors#runtime-internal description: Stable public documentation and remedy for this error type. required: - type - message - more additionalProperties: false required: - error additionalProperties: false description: >- An unexpected internal failure occurred; the message contains an opaque incident reference. PrincipalId: type: string allOf: - pattern: ^prin_[0-9a-f]{32}$ SessionId: type: string allOf: - pattern: ^sess_[0-9a-f]{32}$ ValidationIdempotencyConflictError: type: object properties: error: type: object properties: type: type: string enum: - validation.idempotency_conflict message: type: string more: type: string enum: - >- https://docs.checkfu.com/reference/errors#validation-idempotency-conflict description: Stable public documentation and remedy for this error type. required: - type - message - more additionalProperties: false required: - error additionalProperties: false description: The Idempotency-Key is already bound to a different request. ValidationIdempotencyInProgressError: type: object properties: error: type: object properties: type: type: string enum: - validation.idempotency_in_progress message: type: string more: type: string enum: - >- https://docs.checkfu.com/reference/errors#validation-idempotency-in-progress description: Stable public documentation and remedy for this error type. required: - type - message - more additionalProperties: false required: - error additionalProperties: false description: >- An identical idempotent request is still in progress and may be retried later. securitySchemes: bearerAuth: type: http scheme: bearer ````