> ## Documentation Index > Fetch the complete documentation index at: https://docs.labelbox.com/llms.txt > Use this file to discover all available pages before exploring further. # Roll up token and cost totals for a batch of sessions > Rolls up token counts and cost for the sessions named in session_ids and returns one row per session. Ids that do not exist in this organization are omitted rather than erroring, so compare the row count against what you asked for. The request is rejected if it names more ids than the per-request maximum. ## OpenAPI ````yaml /managed-agents/openapi.yaml get /managed-agents/v1/sessions/usage openapi: 3.1.0 info: title: Managed Agents API version: 0.14.0 description: >- The Recursion Managed Agents REST API. Authenticate with a Recursion API key as a bearer token. An organization-scoped key acts in its own organization and needs nothing else; a tenant-scoped key must also send `x-organization-id` with an organization id or `default`. Field names follow each operation's published schema. servers: - url: https://api.recursion.labelbox.com security: - bearerAuth: [] paths: /managed-agents/v1/sessions/usage: get: tags: - Sessions summary: Roll up token and cost totals for a batch of sessions description: >- Rolls up token counts and cost for the sessions named in session_ids and returns one row per session. Ids that do not exist in this organization are omitted rather than erroring, so compare the row count against what you asked for. The request is rejected if it names more ids than the per-request maximum. operationId: managedAgentsListSessionUsage parameters: - description: >- Comma-separated session ids to roll up, matching the ids returned by GET /v1/sessions. Ids that do not exist in this organization or are outside the caller's access policy are omitted from the response rather than erroring. in: query name: session_ids required: true schema: description: >- Comma-separated session ids to roll up, matching the ids returned by GET /v1/sessions. Ids that do not exist in this organization or are outside the caller's access policy are omitted from the response rather than erroring. type: string responses: '200': content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsSessionUsageListResponse' description: >- Response body of GET /v1/sessions/usage: token and cost totals for an explicit batch of session ids, so a list view can show a cost per row without reading every session's events. session_ids is required and bounded; too many ids is rejected outright rather than truncated, because a silently short answer is indistinguishable from idle sessions. '400': description: The request was rejected by schema or semantic validation. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorInvalidRequest' '401': description: The caller is unauthenticated. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorUnauthorized' '403': description: The caller lacks a required permission or capability. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorForbidden' '409': description: >- The request conflicts with the resource state, or with an in-flight idempotent replay. content: application/json: schema: $ref: >- #/components/schemas/ManagedAgentsApiErrorIosClientUpdateRequired '429': headers: Retry-After: description: When to retry, as delay seconds or an HTTP date. schema: type: string description: A rate limit is exhausted. Honor `Retry-After`. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorRateLimitExceeded' '500': description: An unexpected server-side failure. content: application/json: schema: oneOf: - $ref: '#/components/schemas/ManagedAgentsApiErrorInternalError' - $ref: >- #/components/schemas/ManagedAgentsApiErrorInvariantViolation discriminator: propertyName: code mapping: internal_error: $ref: '#/components/schemas/ManagedAgentsApiErrorInternalError' invariant_violation: $ref: >- #/components/schemas/ManagedAgentsApiErrorInvariantViolation '502': description: The service returned an invalid response. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorBadGateway' '503': description: >- A dependency is unavailable. Consult details.retryable and Retry-After when present before retrying. content: application/json: schema: oneOf: - $ref: >- #/components/schemas/ManagedAgentsApiErrorManagedAgentsUnavailable - $ref: >- #/components/schemas/ManagedAgentsApiErrorServiceUnavailable discriminator: propertyName: code mapping: managed_agents_unavailable: $ref: >- #/components/schemas/ManagedAgentsApiErrorManagedAgentsUnavailable service_unavailable: $ref: >- #/components/schemas/ManagedAgentsApiErrorServiceUnavailable '504': description: The service did not respond before the timeout. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorGatewayTimeout' components: schemas: ManagedAgentsSessionUsageListResponse: description: >- Response body of GET /v1/sessions/usage: token and cost totals for an explicit batch of session ids, so a list view can show a cost per row without reading every session's events. session_ids is required and bounded; too many ids is rejected outright rather than truncated, because a silently short answer is indistinguishable from idle sessions. properties: session_usage: description: >- One roll-up row per requested session id that the caller can see. Null rather than an empty array when none of the requested ids resolved. Ids naming nothing visible are omitted, so the result may be shorter than session_ids and the order should not be assumed to match. items: $ref: '#/components/schemas/ManagedAgentsSessionUsage' type: - array - 'null' required: - session_usage type: object example: session_usage: - cache_read_tokens: 1 cache_write_tokens: 1 cost_micros: 1 event_count: 1 input_tokens: 1 output_tokens: 1 session_id: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d ManagedAgentsApiErrorInvalidRequest: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - invalid_request message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorUnauthorized: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - unauthorized message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorForbidden: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - forbidden message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorIosClientUpdateRequired: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - ios_client_update_required message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorRateLimitExceeded: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - rate_limit_exceeded message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorInternalError: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - internal_error message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorInvariantViolation: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - invariant_violation message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorBadGateway: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - bad_gateway message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorManagedAgentsUnavailable: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - managed_agents_unavailable message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorServiceUnavailable: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - service_unavailable message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorGatewayTimeout: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - gateway_timeout message: type: string minLength: 1 description: Human-readable error message. details: $ref: '#/components/schemas/ManagedAgentsApiErrorDetails' description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsSessionUsage: description: >- Token and cost totals for one session, summed over that session's own events. Scoped to the session's own timeline and not its subtree, so a delegating session's totals exclude its children. properties: cache_read_tokens: description: >- Prompt tokens served from the provider's prompt cache, billed at the cached rate. format: int64 type: integer cache_write_tokens: description: Prompt tokens written into the provider's prompt cache. format: int64 type: integer cost_micros: description: >- Accrued cost in micro-USD (1,000,000 = 1 USD). Integer to avoid float rounding across many small charges. format: int64 type: integer event_count: description: >- How many of the session's own events were summed to produce these totals. format: int64 type: integer input_tokens: description: Prompt tokens billed for this unit of work. format: int64 type: integer output_tokens: description: Completion tokens billed for this unit of work. format: int64 type: integer session_id: description: Session these totals cover (UUID). type: string required: - session_id - event_count - input_tokens - output_tokens - cache_read_tokens - cache_write_tokens - cost_micros type: object example: cache_read_tokens: 1 cache_write_tokens: 1 cost_micros: 1 event_count: 1 input_tokens: 1 output_tokens: 1 session_id: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d ManagedAgentsApiErrorDetails: type: object properties: field: description: >- Request field or header responsible for the error, when one can be identified. type: string issues: description: >- Boundary-validation failures as path-prefixed human-readable messages. type: array items: type: string requestId: description: Request correlation identifier for support and log lookup. type: string retryable: description: >- Server advice about failure transience. `true` means transient, `false` means non-transient, and absence gives no advice. Automatic replay is allowed only when this field is not `false` and the operation-specific retry and idempotency contract permits replay. type: boolean additionalProperties: {} description: >- Optional structured error details. Reserved transport fields are typed; code-specific fields remain forward compatible. securitySchemes: bearerAuth: type: http scheme: bearer description: A Recursion API key, created in the console under API keys. ````