openapi: 3.1.0 info: title: Viam Billing Arm Usage 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: Usage description: Current-month usage reporting. paths: /viam.app.v1.BillingService/GetCurrentMonthUsage: post: summary: Viam Get Current Month Usage description: Retrieve current-month usage and projected cost for an organization. operationId: getCurrentMonthUsage tags: - Usage requestBody: required: true content: application/json: schema: type: object required: - org_id properties: org_id: type: string responses: '200': description: Successful response. /viam.app.v1.BillingService/GetOrgBillingInformation: post: summary: Viam Get Org Billing Information description: Retrieve billing information for an organization. operationId: getOrgBillingInformation tags: - Usage requestBody: required: true content: application/json: schema: type: object required: - org_id properties: org_id: type: string responses: '200': description: Successful response. components: securitySchemes: ApiKeyAuth: type: apiKey in: header name: key description: Viam API key.