openapi: 3.1.0 info: title: Viam Billing Arm Modules API description: 'REST/JSON transcoding of the Viam BillingService gRPC API. Retrieve current-month usage, invoice summaries, invoice PDFs, billing tiers, and the location-level billing organization assignment used by Viam''s "build a robotics business" features. Canonical contract: https://github.com/viamrobotics/api/blob/main/proto/viam/app/v1/billing.proto ' version: '2026.05' contact: name: Viam Support url: https://www.viam.com/contact servers: - url: https://app.viam.com description: Viam production cloud. security: - ApiKeyAuth: [] tags: - name: Modules description: Modular component and service lifecycle. paths: /viam.robot.v1.RobotService/GetModelsFromModules: post: summary: Viam Get Models From Modules description: Retrieve the list of resource models registered by all loaded modules. operationId: getModelsFromModules tags: - Modules requestBody: required: true content: application/json: schema: type: object responses: '200': description: Successful response. /viam.robot.v1.RobotService/RestartModule: post: summary: Viam Restart Module description: Restart a loaded module without restarting viam-server. operationId: restartModule tags: - Modules requestBody: required: true content: application/json: schema: type: object properties: module_id: type: string module_name: type: string responses: '200': description: Successful response. components: securitySchemes: ApiKeyAuth: type: apiKey in: header name: key description: Viam API key.