> ## Documentation Index > Fetch the complete documentation index at: https://docs.continuouslabs.ai/llms.txt > Use this file to discover all available pages before exploring further. # Get World Clock Advance > Returns completed, failed, or skipped outcomes for each member. A failed call can have an unconfirmed runtime outcome. Reusing the request key returns the same result. ## OpenAPI ````yaml /openapi/simulation.yaml get /v1/worlds/{id}/advances/{advance_id} openapi: 3.1.0 info: description: >- Build Simulators from OpenAPI or WSDL documents, create Simulations from them, and build Worlds that run Simulations together. Authenticate every request with an API key sent as a Bearer token. title: Continuous Simulation API version: v1 servers: - description: Continuous production API. url: https://api.continuouslabs.ai security: [] tags: - description: >- Build Simulators from OpenAPI or WSDL documents, check or cancel a build, and delete Simulators. name: simulators x-group: Simulators - description: >- Create Simulations from ready Simulators, then fork, stop, start, and delete them. name: simulations x-group: Simulations - description: >- Build Worlds from one or more Simulators and start or stop their Simulations together. name: worlds x-group: Worlds paths: /v1/worlds/{id}/advances/{advance_id}: get: tags: - worlds summary: Get World Clock Advance description: >- Returns completed, failed, or skipped outcomes for each member. A failed call can have an unconfirmed runtime outcome. Reusing the request key returns the same result. operationId: get-world-advance parameters: - description: World ID. in: path name: id required: true schema: pattern: ^wld_[0-9A-HJKMNP-TV-Z]{26}$ type: string - description: Clock advance operation ID. in: path name: advance_id required: true schema: pattern: ^adv_[0-9A-HJKMNP-TV-Z]{26}$ type: string responses: '200': content: application/json: schema: $ref: '#/components/schemas/ClockAdvance' description: OK '401': $ref: '#/components/responses/Unauthorized' '403': content: application/problem+json: examples: auth_forbidden_world: $ref: '#/components/examples/auth_forbidden_world' schema: $ref: '#/components/schemas/Error' description: Forbidden '404': content: application/problem+json: examples: clock_advance_not_found: $ref: '#/components/examples/clock_advance_not_found' world_not_found: $ref: '#/components/examples/world_not_found' schema: $ref: '#/components/schemas/Error' description: Not Found '500': $ref: '#/components/responses/InternalServerError' '503': content: application/problem+json: examples: auth_provider_unavailable: $ref: '#/components/examples/auth_provider_unavailable' internal_unavailable: $ref: '#/components/examples/internal_unavailable' schema: $ref: '#/components/schemas/Error' description: Service Unavailable security: - apiKeyAuth: [] components: schemas: ClockAdvance: additionalProperties: false properties: error: $ref: '#/components/schemas/ResourceError' description: Safe execution failure, or null when no failure is recorded. event_count: description: Number of committed event executions. format: int64 minimum: 0 type: integer from: description: Clock before the requested advance. format: date-time type: string id: description: Stable clock advance operation ID. pattern: ^adv_[0-9A-HJKMNP-TV-Z]{26}$ type: string members: description: Progress for each participating Simulation. items: $ref: '#/components/schemas/ClockAdvanceMember' type: array status: description: Durable operation state. Poll while pending or running. enum: - pending - running - completed - failed type: string step: description: Committed local step, or null for no change or a World operation. format: int64 type: - integer - 'null' to: description: Requested absolute target time. format: date-time type: string required: - id - status - from - to - event_count - step - members - error type: object Error: additionalProperties: false properties: code: description: Stable machine-readable error code. minLength: 1 type: string detail: description: Safe human-readable error detail. minLength: 1 type: string validation: $ref: '#/components/schemas/SpecificationValidation' description: >- Safe specification diagnostics for a rejected build request, when available. required: - validation - code - detail type: object ResourceError: additionalProperties: false properties: code: description: Stable machine-readable error code. type: string detail: description: Safe human-readable error detail. type: string required: - code - detail type: - object - 'null' ClockAdvanceMember: additionalProperties: false properties: error: $ref: '#/components/schemas/ResourceError' description: Safe execution failure, or null when no failure is recorded. event_count: description: Number of committed event executions. format: int64 minimum: 0 type: integer simulation_id: description: Member Simulation ID. pattern: ^sim_[0-9A-HJKMNP-TV-Z]{26}$ type: string status: description: >- Whether this member is pending, committed, failed, or skipped because it is not running. enum: - pending - completed - failed - skipped type: string step: description: Committed local step, or null for no change or a failed advance. format: int64 type: - integer - 'null' required: - simulation_id - status - event_count - step - error type: object SpecificationValidation: additionalProperties: false properties: issues: description: Specification validation problems. At most 20 are returned. items: $ref: '#/components/schemas/SpecificationIssue' maxItems: 20 type: array required: - issues type: - object - 'null' SpecificationIssue: additionalProperties: false properties: code: description: Stable validation rule code. type: string kind: description: >- Whether the input is invalid, unsupported, incomplete, or has no specific diagnosis. enum: - invalid - unsupported - incomplete - unknown type: string location: description: Readable endpoint or field affected by this issue. maxLength: 512 type: string message: description: What needs attention at this location. type: string operation: description: >- Affected operation ID or method and path, when available. Empty for document-level issues. maxLength: 243 type: string suggestion: description: How to correct or address the problem. type: string required: - code - operation - location - kind - message - suggestion type: object responses: Unauthorized: content: application/problem+json: examples: auth_invalid: $ref: '#/components/examples/auth_invalid' auth_missing: $ref: '#/components/examples/auth_missing' schema: $ref: '#/components/schemas/Error' description: Unauthorized InternalServerError: content: application/problem+json: examples: internal: $ref: '#/components/examples/internal' schema: $ref: '#/components/schemas/Error' description: Internal Server Error examples: auth_forbidden_world: value: code: auth_forbidden detail: >- The World with ID "wld_01J8Z5X4K7M2N9P0Q1R2S3T4V7" belongs to another workspace. validation: null clock_advance_not_found: value: code: clock_advance_not_found detail: The clock advance was not found. validation: null world_not_found: value: code: world_not_found detail: No World was found with ID "wld_01J8Z5X4K7M2N9P0Q1R2S3T4V7". validation: null auth_provider_unavailable: value: code: auth_provider_unavailable detail: >- The authentication provider is unavailable. Retry the request after a short delay. validation: null internal_unavailable: value: code: internal_unavailable detail: >- The service is temporarily unavailable. Retry the request after a short delay. validation: null auth_invalid: value: code: auth_invalid detail: The authentication credential is invalid. validation: null auth_missing: value: code: auth_invalid detail: Authentication credentials are required. validation: null internal: value: code: internal detail: The server encountered an unexpected error. validation: null securitySchemes: apiKeyAuth: bearerFormat: Continuous API key description: >- Use a Continuous API key. Send it in the Authorization header as a Bearer token. scheme: bearer type: http ````