> ## Documentation Index > Fetch the complete documentation index at: https://docs.outerproduct.com/llms.txt > Use this file to discover all available pages before exploring further. # What the credential's workspace was charged per SKU for usage that started at or after start_time and before end_time, over each window of the period: the sum of the charges to its balance. > cf. AWS Cost Explorer GetCostAndUsage; AIP-136. ## OpenAPI ````yaml /http-api-reference/openapi.json post /outerproduct.usage.v1alpha.UsageService/QueryCost openapi: 3.1.0 info: title: OuterProduct Control Plane API description: >- Control-plane Connect RPCs over HTTP with ProtoJSON request and response bodies. version: v1alpha servers: - url: https://api.outerproduct.com security: - bearerAuth: [] tags: - name: ApiKey description: >- Manages the API keys of the session's workspace. Each key acts as its creator; every member lists them, and only their creator or the workspace owner revokes them. External sign-in is required; personal and execution tokens cannot manage keys. - name: Event description: >- What happened on the deployment, kept as an append-only log: each service records the events it defines, from which usage is derived. An event is never changed. Only the deployment itself writes; a credential's holder reads its workspace's. - name: Image description: >- The image registry: OCI distribution over its storage, whose formats are its own. The control plane serves it to users, admitting each only to their workspace's repository, and forwards to the OCI registry. Manifests and blobs are addressed by digest and never replaced; tags name manifests. - name: ImageBuilder description: >- Builds Images from image specs, and runs their install steps, each adding layers to its parent image, and package builds, each one pinned package's layer on its base, which install steps merge rather than install. The control plane serves `SubmitImageBuild` and `WaitImageBuild` to users, and forwards them to the scheduler's, which imports each image spec's base through the OCI registry, places each install step and package build on a node that builds, and tags the image it built in its workspace's repository. Those nodes serve the steps to the scheduler, by the scheduler's certificate, and run each in the sandbox the scheduler placed it in. - name: PaymentProcessor description: >- Where the credential's workspace pays: the payment processor's hosted pages. Credit is the only thing sold. - name: Policy description: >- Resource access policies evaluated by the application's Cedar authorizer. A policy belongs to the workspace of the credential that created it and governs only that workspace and what it owns; deployment-wide grants belong to the operator's policy. - name: Run description: >- Submits and observes product Runs, their Calls, and the Calls' Attempts. Every Run owns one rooted Call tree. - name: Secret - name: Usage description: >- What a workspace has used and what it has left: its prepaid balance, topped up through the payment processor and spent by its usage. - name: User description: / User crud service - name: Volume - name: Workspace description: >- The workspace a request's credential is bound to, and its members. A session starts bound to its user's workspace and may switch to another the user belongs to; an API key stays bound to the workspace it was created in. Requests act in the bound workspace. paths: /outerproduct.usage.v1alpha.UsageService/QueryCost: post: tags: - Usage summary: >- What the credential's workspace was charged per SKU for usage that started at or after start_time and before end_time, over each window of the period: the sum of the charges to its balance. description: cf. AWS Cost Explorer GetCostAndUsage; AIP-136. operationId: outerproduct.usage.v1alpha.UsageService.QueryCost parameters: - name: Connect-Protocol-Version in: header description: Define the version of the Connect protocol required: true schema: $ref: '#/components/schemas/connect-protocol-version' example: 1 - name: Connect-Timeout-Ms in: header description: Define the timeout, in ms schema: $ref: '#/components/schemas/connect-timeout-header' example: 1000 requestBody: content: application/json: schema: $ref: '#/components/schemas/outerproduct.usage.v1alpha.QueryCostRequest' required: true responses: '200': description: Success content: application/json: schema: $ref: >- #/components/schemas/outerproduct.usage.v1alpha.QueryCostResponse default: description: Error content: application/json: schema: $ref: '#/components/schemas/connect.error' components: schemas: connect-protocol-version: type: number examples: - 1 title: Connect-Protocol-Version description: Define the version of the Connect protocol const: 1 connect-timeout-header: type: number examples: - 1000 title: Connect-Timeout-Ms description: Define the timeout, in ms outerproduct.usage.v1alpha.QueryCostRequest: type: object properties: name: type: string title: name startTime: allOf: - $ref: '#/components/schemas/google.protobuf.Timestamp' title: start_time description: >- Charges for usage that started at or after `start_time` and before `end_time`, as in QueryUsage. endTime: allOf: - $ref: '#/components/schemas/google.protobuf.Timestamp' title: end_time granularity: allOf: - $ref: '#/components/schemas/outerproduct.usage.v1alpha.Granularity' title: granularity description: >- The windows the period is cut into; unspecified sums the whole period as one. groupBy: type: array items: $ref: '#/components/schemas/outerproduct.usage.v1alpha.UsageDimension' title: group_by description: What each window's charges are further summed by, besides their SKU. filter: allOf: - $ref: '#/components/schemas/outerproduct.usage.v1alpha.UsageFilter' title: filter description: >- Only charges matching every set list. Charges recorded before they carried their subject, principal and resource match none of those lists, and group under empty values. title: QueryCostRequest additionalProperties: false description: >- cf. AWS Cost Explorer GetCostAndUsage (TimePeriod, Granularity, GroupBy, Filter). outerproduct.usage.v1alpha.QueryCostResponse: type: object properties: costs: type: array items: $ref: '#/components/schemas/outerproduct.usage.v1alpha.Cost' title: costs description: One per window and SKU charged in it, by window, then SKU. title: QueryCostResponse additionalProperties: false description: cf. AWS Cost Explorer GetCostAndUsage `ResultsByTime`. connect.error: type: object properties: code: type: string examples: - not_found enum: - canceled - unknown - invalid_argument - deadline_exceeded - not_found - already_exists - permission_denied - resource_exhausted - failed_precondition - aborted - out_of_range - unimplemented - internal - unavailable - data_loss - unauthenticated description: >- The status code, which should be an enum value of [google.rpc.Code][google.rpc.Code]. message: type: string description: >- A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the [google.rpc.Status.details][google.rpc.Status.details] field, or localized by the client. details: type: array items: $ref: '#/components/schemas/connect.error_details.Any' description: >- A list of messages that carry the error details. There is no limit on the number of messages. title: Connect Error additionalProperties: true description: >- Error type returned by Connect: https://connectrpc.com/docs/go/errors/#http-representation google.protobuf.Timestamp: type: string examples: - '2023-01-15T01:30:15.01Z' - '2024-12-25T12:00:00Z' format: date-time description: >- A point in time in RFC 3339 format, with up to nanosecond precision. Output uses UTC (`Z`); input may use an offset from UTC. outerproduct.usage.v1alpha.Granularity: type: string title: Granularity enum: - GRANULARITY_UNSPECIFIED - GRANULARITY_HOURLY - GRANULARITY_DAILY - GRANULARITY_MONTHLY description: |- Whole UTC hours, days or months. cf. AWS Cost Explorer `Granularity`; OpenMeter `windowSize`. outerproduct.usage.v1alpha.UsageDimension: type: string title: UsageDimension enum: - USAGE_DIMENSION_UNSPECIFIED - USAGE_DIMENSION_SUBJECT - USAGE_DIMENSION_PRINCIPAL - USAGE_DIMENSION_RESOURCE description: |- A fact of usage it may be summed by, besides its SKU and window. cf. AWS Cost Explorer `GroupBy` dimension keys; Cloud Billing's export columns. outerproduct.usage.v1alpha.UsageFilter: type: object properties: skus: type: array items: type: string title: skus subjects: type: array items: type: string title: subjects principals: type: array items: type: string title: principals resources: type: array items: type: string title: resources title: UsageFilter additionalProperties: false description: |- Each list matches any of its values; an empty list matches all. cf. AWS Cost Explorer `Expression.Dimensions`. outerproduct.usage.v1alpha.Cost: type: object properties: sku: type: string title: sku quantity: type: string title: quantity format: int64 description: In the SKU's unit. amount: type: string title: amount description: A decimal in the currency's minor unit. startTime: allOf: - $ref: '#/components/schemas/google.protobuf.Timestamp' title: start_time description: The window, or the whole period, cut to the period asked for. endTime: allOf: - $ref: '#/components/schemas/google.protobuf.Timestamp' title: end_time subject: type: string title: subject description: |- The Attempt or sandbox, when grouped by it. cf. Cloud Billing's usage export `resource.name`. principal: type: string title: principal description: |- Whom it ran for, when grouped by it. cf. OTel `enduser.id`. resource: type: string title: resource description: |- The Run or sandbox, when grouped by it. cf. AWS Cost and Usage Report `lineItem/ResourceId`. title: Cost additionalProperties: false description: |- What one SKU's usage cost over a window. cf. Cloud Billing's usage cost export: `sku`, `usage_start_time`, `usage.amount`, `cost`. connect.error_details.Any: type: object properties: type: type: string description: >- A URL that acts as a globally unique identifier for the type of the serialized message. For example: `type.googleapis.com/google.rpc.ErrorInfo`. value: type: string format: binary description: >- The Protobuf message, serialized as bytes and base64-encoded. The specific message type is identified by the `type` field. debug: type: object title: Debug additionalProperties: true description: >- Deserialized error detail payload. The 'type' field indicates the schema. This field is for easier debugging and should not be relied upon for application logic. additionalProperties: true description: >- Contains an arbitrary serialized message along with a @type that describes the type of the serialized message, with an additional debug field for ConnectRPC error details. securitySchemes: bearerAuth: type: http description: A user session token or personal API key. scheme: bearer ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.