> ## Documentation Index > Fetch the complete documentation index at: https://docs.watchdog.no/llms.txt > Use this file to discover all available pages before exploring further. # List usage by billing period > Returns usage per billing month, newest first: the current month by default, or up to 12 months with period_from and period_through. current_capacity shows usage, allowance and overage for the whole current policy period. ## OpenAPI ````yaml /openapi.json get /v1/usage openapi: 3.1.0 info: title: Watchdog API version: 1.0.0 description: >- The Watchdog API is served from https://api.watchdog.no. Request bodies are limited to 2 MiB unless an endpoint says otherwise. Files are uploaded directly to storage, not through the API. servers: - url: https://api.watchdog.no description: Watchdog API security: [] paths: /v1/usage: get: tags: - Usage - Settings summary: List usage by billing period description: >- Returns usage per billing month, newest first: the current month by default, or up to 12 months with period_from and period_through. current_capacity shows usage, allowance and overage for the whole current policy period. operationId: listUsage parameters: - name: X-Organization-Id in: header required: false schema: type: string description: >- The organization to act in. Required for personal API keys; list the organizations you can access with GET /v1/organizations. - name: fields in: query required: false schema: type: string description: >- Return only these fields of each row, comma-separated; use dots for nested fields, such as capacity.eligible. Fields: period, period_start, period_end, unit, consumed, consumption_only, policy_cadence, allowance, overage, policy_revision_id, capacity. - schema: type: integer minimum: 1 maximum: 1000 default: 50 description: Maximum number of results per page. required: false description: Maximum number of results per page. name: limit in: query - schema: type: string maxLength: 4096 description: >- Opaque next_cursor from the previous page. Keep the same filters and sort; omit for the first page. required: false description: >- Opaque next_cursor from the previous page. Keep the same filters and sort; omit for the first page. name: cursor in: query - schema: type: string pattern: ^(?:[1-9]\d{3})-(?:0[1-9]|1[0-2])$ required: false name: period_from in: query - schema: type: string pattern: ^(?:[1-9]\d{3})-(?:0[1-9]|1[0-2])$ required: false name: period_through in: query responses: '200': description: Monthly usage and current capacity. headers: X-Request-Id: schema: type: string required: true description: >- Request ID, also included in error bodies. Include it when contacting support. Cache-Control: schema: type: string enum: - private, no-store - private, no-store, no-transform required: false description: API responses are private and must not be cached. X-RateLimit-Limit: schema: type: string example: '500' required: false description: >- Requests allowed per minute for this credential, or failed API key attempts allowed per minute from this IP address. content: application/json: schema: type: object properties: data: type: array items: $ref: '#/components/schemas/UsagePeriod' maxItems: 1000 next_cursor: type: - string - 'null' current_capacity: type: object properties: eligible: type: boolean remaining: type: - integer - 'null' reason: type: string enum: - available - limit_reached reserved: type: integer as_of: type: string format: date-time cadence: type: string enum: - calendar_month - three_months - year anchor_date: type: - string - 'null' format: date start_date: type: string format: date end_date: type: string format: date period_start: type: string format: date-time period_end: type: string format: date-time period: type: string pattern: ^(?:[1-9]\d{3})-(?:0[1-9]|1[0-2])$ description: >- The current calendar month, which may differ from the policy period. billing_timezone: type: string counted: type: integer allowance: type: - integer - 'null' overage: type: - integer - 'null' policy_revision_id: type: - string - 'null' format: uuid required: - eligible - remaining - reason - reserved - as_of - cadence - anchor_date - start_date - end_date - period_start - period_end - period - billing_timezone - counted - allowance - overage - policy_revision_id required: - data - next_cursor - current_capacity '400': description: >- The request is invalid. details lists up to 20 field errors. Request bodies are limited to 2 MiB. headers: X-Request-Id: schema: type: string required: true description: >- Request ID, also included in error bodies. Include it when contacting support. Cache-Control: schema: type: string enum: - private, no-store - private, no-store, no-transform required: false description: API responses are private and must not be cached. X-RateLimit-Limit: schema: type: string example: '500' required: false description: >- Requests allowed per minute for this credential, or failed API key attempts allowed per minute from this IP address. content: application/json: schema: $ref: '#/components/schemas/Error_validation_error' example: error: code: validation_error message: >- The request is invalid. details lists up to 20 field errors. Request bodies are limited to 2 MiB. request_id: req_example '401': description: The bearer token is missing or invalid. headers: X-Request-Id: schema: type: string required: true description: >- Request ID, also included in error bodies. Include it when contacting support. Cache-Control: schema: type: string enum: - private, no-store - private, no-store, no-transform required: false description: API responses are private and must not be cached. X-RateLimit-Limit: schema: type: string example: '500' required: false description: >- Requests allowed per minute for this credential, or failed API key attempts allowed per minute from this IP address. WWW-Authenticate: schema: type: string required: false description: Bearer authentication challenge, when supplied. content: application/json: schema: $ref: '#/components/schemas/Error_invalid_token' example: error: code: invalid_token message: The bearer token is missing or invalid. request_id: req_example '403': description: >- Access denied. The error code says why: forbidden, token_disabled, organization_required, insufficient_role or mfa_required. headers: X-Request-Id: schema: type: string required: true description: >- Request ID, also included in error bodies. Include it when contacting support. Cache-Control: schema: type: string enum: - private, no-store - private, no-store, no-transform required: false description: API responses are private and must not be cached. X-RateLimit-Limit: schema: type: string example: '500' required: false description: >- Requests allowed per minute for this credential, or failed API key attempts allowed per minute from this IP address. content: application/json: schema: $ref: >- #/components/schemas/Error_forbidden_token_disabled_organization_required_insufficient_role_mfa_required example: error: code: forbidden message: >- Access denied. The error code says why: forbidden, token_disabled, organization_required, insufficient_role or mfa_required. request_id: req_example '429': description: Too many requests. Wait for the Retry-After delay before retrying. headers: X-Request-Id: schema: type: string required: true description: >- Request ID, also included in error bodies. Include it when contacting support. Cache-Control: schema: type: string enum: - private, no-store - private, no-store, no-transform required: false description: API responses are private and must not be cached. X-RateLimit-Limit: schema: type: string example: '500' required: false description: >- Requests allowed per minute for this credential, or failed API key attempts allowed per minute from this IP address. Retry-After: schema: type: string example: '60' required: true description: Seconds to wait before retrying the request. content: application/json: schema: $ref: '#/components/schemas/Error_rate_limit_exceeded' example: error: code: rate_limit_exceeded message: >- Too many requests. Wait for the Retry-After delay before retrying. request_id: req_example '500': description: >- Unexpected server failure. Include the request ID when contacting support. headers: X-Request-Id: schema: type: string required: true description: >- Request ID, also included in error bodies. Include it when contacting support. Cache-Control: schema: type: string enum: - private, no-store - private, no-store, no-transform required: false description: API responses are private and must not be cached. X-RateLimit-Limit: schema: type: string example: '500' required: false description: >- Requests allowed per minute for this credential, or failed API key attempts allowed per minute from this IP address. content: application/json: schema: $ref: '#/components/schemas/Error_internal_error' example: error: code: internal_error message: >- Unexpected server failure. Include the request ID when contacting support. request_id: req_example '503': description: >- Temporarily unavailable. Retry after the Retry-After delay, when provided. headers: X-Request-Id: schema: type: string required: true description: >- Request ID, also included in error bodies. Include it when contacting support. Cache-Control: schema: type: string enum: - private, no-store - private, no-store, no-transform required: false description: API responses are private and must not be cached. X-RateLimit-Limit: schema: type: string example: '500' required: false description: >- Requests allowed per minute for this credential, or failed API key attempts allowed per minute from this IP address. Retry-After: schema: type: string example: '60' required: true description: Seconds to wait before retrying the request. content: application/json: schema: $ref: '#/components/schemas/Error_service_unavailable' example: error: code: service_unavailable message: >- Temporarily unavailable. Retry after the Retry-After delay, when provided. request_id: req_example security: - ApiKeyBearer: [] components: schemas: UsagePeriod: type: object properties: period: type: string pattern: ^(?:[1-9]\d{3})-(?:0[1-9]|1[0-2])$ period_start: type: string format: date-time period_end: type: string format: date-time unit: type: string enum: - invoice consumed: type: integer consumption_only: type: boolean policy_cadence: type: string enum: - calendar_month - three_months - year allowance: type: - integer - 'null' overage: type: - integer - 'null' policy_revision_id: type: - string - 'null' format: uuid capacity: type: - object - 'null' properties: eligible: type: boolean remaining: type: - integer - 'null' reason: type: string enum: - available - limit_reached reserved: type: integer as_of: type: string format: date-time required: - eligible - remaining - reason - reserved - as_of required: - period - period_start - period_end - unit - consumed - consumption_only - policy_cadence - allowance - overage - policy_revision_id - capacity Error_validation_error: type: object properties: error: type: object properties: code: type: string enum: - validation_error message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_invalid_token: type: object properties: error: type: object properties: code: type: string enum: - invalid_token message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_forbidden_token_disabled_organization_required_insufficient_role_mfa_required: type: object properties: error: type: object properties: code: type: string enum: - forbidden - token_disabled - organization_required - insufficient_role - mfa_required message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_rate_limit_exceeded: type: object properties: error: type: object properties: code: type: string enum: - rate_limit_exceeded message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_internal_error: type: object properties: error: type: object properties: code: type: string enum: - internal_error message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error Error_service_unavailable: type: object properties: error: type: object properties: code: type: string enum: - service_unavailable message: type: string request_id: type: string description: type: string details: type: array items: type: object properties: code: type: string field: type: string message: type: string required: - code - field - message maxItems: 20 workflow_run_id: type: string format: uuid import_id: type: string format: uuid existing_party: type: object properties: type: type: string enum: - supplier - recipient id: type: string format: uuid required: - type - id required: - code - message - request_id required: - error securitySchemes: ApiKeyBearer: type: http scheme: bearer description: >- Personal API key sent as a bearer token, together with X-Organization-Id. The key must have at least the access level the endpoint requires (read, write or admin). ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.