> ## 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. # Get a settled Browser observation > Returns one already-settled, bounded, sanitized Browser observation under its exact Computer and Screen. Raw provider coordinates, screenshot bytes, form values, hidden sensitive fields, browser chrome, and unrelated targets cannot fit the response. A mismatched resource path is not addressable, and an admission that has not settled remains absent. Checkfu support posture: alpha; hosted. No release evidence journey applies to this operation. ## OpenAPI ````yaml /openapi.json get /v1/computers/{id}/screens/{screen_id}/observations/{observation_id} openapi: 3.1.0 info: title: Checkfu API version: '2026-08-29' 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: 2026-08-29); 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: 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: sessionHandoffs - name: sessionCapsules - name: sessionTrajectories - 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/{id}/screens/{screen_id}/observations/{observation_id}: get: tags: - computerBrowserObservations summary: Get a settled Browser observation description: >- Returns one already-settled, bounded, sanitized Browser observation under its exact Computer and Screen. Raw provider coordinates, screenshot bytes, form values, hidden sensitive fields, browser chrome, and unrelated targets cannot fit the response. A mismatched resource path is not addressable, and an admission that has not settled remains absent. Checkfu support posture: alpha; hosted. No release evidence journey applies to this operation. operationId: computerBrowserObservations.getComputerBrowserObservation parameters: - name: id in: path schema: $ref: '#/components/schemas/ComputerId' required: true - name: screen_id in: path schema: $ref: '#/components/schemas/ScreenId' required: true - name: observation_id in: path schema: $ref: '#/components/schemas/BrowserObservationId' required: true - name: checkfu-version in: header schema: type: string enum: - '2026-08-29' required: true responses: '200': description: >- A bounded sanitized Browser observation bound to its exact authority and content digest. content: application/json: schema: $ref: '#/components/schemas/BrowserObservation' 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' '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: $ref: '#/components/schemas/RuntimeInternalError' security: - bearerAuth: [] components: schemas: ComputerId: type: string allOf: - pattern: ^comp_[0-9a-f]{32}$ ScreenId: type: string allOf: - pattern: ^scrn_[0-9a-f]{32}$ BrowserObservationId: type: string allOf: - pattern: ^bobs_[0-9a-f]{32}$ BrowserObservation: type: object properties: id: $ref: '#/components/schemas/BrowserObservationId' request_fingerprint: type: string allOf: - pattern: ^sha256:[0-9a-f]{64}$ workspace_id: $ref: '#/components/schemas/WorkspaceId' computer_id: $ref: '#/components/schemas/ComputerId' computer_generation: type: integer allOf: - exclusiveMinimum: 0 screen_id: $ref: '#/components/schemas/ScreenId' attachment_id: $ref: '#/components/schemas/ComputerAttachmentId' session_id: $ref: '#/components/schemas/SessionId' run_id: $ref: '#/components/schemas/RunId' run_attempt_id: $ref: '#/components/schemas/RunAttemptId' acting_principal_id: $ref: '#/components/schemas/PrincipalId' control_epoch: type: integer allOf: - minimum: 0 observation_generation: type: integer allOf: - minimum: 0 payload: type: object properties: active_target: anyOf: - type: object properties: label: type: string allOf: - minLength: 1 - maxLength: 128 - pattern: ^[a-z0-9][a-z0-9._-]*$ origin: type: string allOf: - maxLength: 2048 title: anyOf: - type: string allOf: - minLength: 1 - maxLength: 512 - type: 'null' viewport: type: object properties: width: type: integer allOf: - exclusiveMinimum: 0 - maximum: 16384 height: type: integer allOf: - exclusiveMinimum: 0 - maximum: 16384 required: - width - height additionalProperties: false required: - label - origin - title - viewport additionalProperties: false - type: 'null' accessibility_tree: type: array items: type: object properties: key: type: string allOf: - minLength: 1 - maxLength: 64 - pattern: ^[a-zA-Z0-9._-]+$ parent_key: anyOf: - type: string allOf: - minLength: 1 - maxLength: 64 - pattern: ^[a-zA-Z0-9._-]+$ - type: 'null' role: type: string allOf: - minLength: 1 - maxLength: 512 accessible_name: anyOf: - type: string allOf: - minLength: 1 - maxLength: 512 - type: 'null' description: anyOf: - type: string allOf: - minLength: 1 - maxLength: 512 - type: 'null' interactive: type: boolean disabled: type: boolean focused: type: boolean masked: type: boolean required: - key - parent_key - role - accessible_name - description - interactive - disabled - focused - masked additionalProperties: false allOf: - maxItems: 2048 target_summaries: type: array items: type: object properties: label: type: string allOf: - minLength: 1 - maxLength: 128 - pattern: ^[a-z0-9][a-z0-9._-]*$ origin: type: string allOf: - maxLength: 2048 title: anyOf: - type: string allOf: - minLength: 1 - maxLength: 512 - type: 'null' active: type: boolean required: - label - origin - title - active additionalProperties: false allOf: - maxItems: 64 screenshot: anyOf: - type: object properties: file_id: $ref: '#/components/schemas/FileId' custody: type: string enum: - ephemeral - retained_by_policy media_type: type: string enum: - image/png - image/jpeg - image/webp sha256: type: string allOf: - pattern: ^sha256:[0-9a-f]{64}$ bytes: type: integer allOf: - exclusiveMinimum: 0 - maximum: 8388608 expires_at: $ref: '#/components/schemas/CurrentTimestamp' required: - file_id - custody - media_type - sha256 - bytes - expires_at additionalProperties: false - type: 'null' sanitization: type: object properties: policy_digest: type: string allOf: - pattern: ^sha256:[0-9a-f]{64}$ sensitive_fields_excluded: type: integer allOf: - minimum: 0 hidden_nodes_excluded: type: integer allOf: - minimum: 0 secret_regions_masked: type: integer allOf: - minimum: 0 browser_chrome_excluded: type: boolean unrelated_targets_excluded: type: boolean required: - policy_digest - sensitive_fields_excluded - hidden_nodes_excluded - secret_regions_masked - browser_chrome_excluded - unrelated_targets_excluded additionalProperties: false truncated: type: boolean required: - active_target - accessibility_tree - target_summaries - screenshot - sanitization - truncated additionalProperties: false payload_digest: type: string allOf: - pattern: ^sha256:[0-9a-f]{64}$ captured_at: $ref: '#/components/schemas/CurrentTimestamp' required: - id - request_fingerprint - workspace_id - computer_id - computer_generation - screen_id - attachment_id - session_id - run_id - run_attempt_id - acting_principal_id - control_epoch - observation_generation - payload - payload_digest - captured_at additionalProperties: false WorkspaceId: type: string allOf: - pattern: ^wrkspc_[0-9a-f]{32}$ 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. 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. ComputerAttachmentId: type: string allOf: - pattern: ^catt_[0-9a-f]{32}$ SessionId: type: string allOf: - pattern: ^sess_[0-9a-f]{32}$ RunId: type: string allOf: - pattern: ^run_[0-9a-f]{32}$ RunAttemptId: type: string allOf: - pattern: ^ratt_[0-9a-f]{32}$ PrincipalId: type: string allOf: - pattern: ^prin_[0-9a-f]{32}$ FileId: type: string allOf: - pattern: ^file_[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. securitySchemes: bearerAuth: type: http scheme: bearer ````