> ## Documentation Index > Fetch the complete documentation index at: https://veryfront.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # List API key usage > List API key usage. ## OpenAPI ````yaml /cloud/rest/openapi.json get /api-keys/usage openapi: 3.1.0 info: title: Veryfront REST API reference version: 1.0.0 description: |- ## Explore the API | Domain | Use it to | | --- | --- | | [Projects](#tag/projects) | Manage projects and files. | | [Agents](#tag/agents) | Manage agent primitives. | | [Orchestration](#tag/execution) | Manage conversations and runs. | | [Evaluations](#tag/evaluations) | Manage evaluations and results. | | [AI Gateway](#tag/ai-gateway) | Access models and inference. | | [MCP](#tag/mcp) | Discover tools and authorization. | | [Integrations](#tag/integrations) | Manage connections and integrations. | | [Knowledge](#tag/knowledge) | Manage documents and search. | | [Deployments](#tag/deployments) | Manage releases and deployments. | | [Runtime](#tag/runtime) | Manage environments and infrastructure. | | [Observability](#tag/observability) | Monitor activity and performance. | | [Identity & Access](#tag/identity-access) | Manage identity and access. | | [Billing & Usage](#tag/billing-usage) | Manage billing and usage. | | [Other](#tag/platform) | Inspect health and API metadata. | [OpenAPI specification (JSON)](/openapi.json) contact: name: Veryfront API Support url: https://veryfront.com/docs email: support@veryfront.com x-api-id: 5f1f0b8a-6b0e-4c1a-9b35-0f3a1e6d84c7 x-audience: external-public servers: - url: https://api.veryfront.com security: - bearerAuth: [] - apiKeyAuth: [] tags: - name: projects description: Manage projects and files. - name: agents description: Manage agent primitives. - name: execution description: Manage conversations and runs. - name: evaluations description: Manage evaluations and results. - name: ai-gateway description: Access models and inference. - name: mcp description: Discover tools and authorization. - name: integrations description: Manage connections and integrations. - name: knowledge description: Manage documents and search. - name: deployments description: Manage releases and deployments. - name: runtime description: Manage environments and infrastructure. - name: observability description: Monitor activity and performance. - name: identity-access description: Manage identity and access. - name: billing-usage description: Manage billing and usage. - name: platform description: Inspect health and API metadata. - name: projects/Projects - name: projects/Projects/Favorites - name: projects/Projects/Account Projects - name: projects/Projects/Projects - name: projects/Projects/Project Labels - name: projects/Projects/Project templates - name: projects/Files - name: projects/Files/Files - name: projects/Files/File Chunks - name: projects/Files/Branch File Versions - name: projects/Files/Branch Files - name: projects/Files/Environment Files - name: projects/Files/File Versions - name: projects/Files/Branch File Drafts - name: projects/Files/Release Files - name: projects/Files/Sandbox Files - name: projects/Files/File Search - name: projects/Branches - name: projects/Branches/Branches - name: projects/Branches/Branch Policies - name: projects/Branches/Branch Approvals - name: projects/Branches/Branch Status Checks - name: projects/Branches/Project Commits - name: projects/Branches/Branch Merges - name: projects/Uploads - name: projects/Uploads/Upload Folders - name: projects/Uploads/Upload Grants - name: projects/Uploads/Project Uploads - name: projects/Uploads/Upload Visibility - name: agents/Agents - name: agents/Agents/Agents - name: agents/Agents/Agent Labels - name: agents/Agents/Agent templates - name: agents/Agents/Agent Tool References - name: agents/Agents/Agent Avatars - name: agents/Agents/Agent Capabilities - name: agents/Agents/Agent Installation - name: agents/Prompts - name: agents/Prompts/Project prompts - name: agents/Tools - name: agents/Tools/Project tools - name: agents/Skills - name: agents/Skills/Project skills - name: agents/Resources - name: agents/Resources/Project resources - name: agents/Tasks - name: agents/Tasks/Tasks - name: agents/Workflows - name: agents/Workflows/Workflows - name: execution/Conversations - name: execution/Conversations/Conversations - name: execution/Conversations/Conversation messages - name: execution/Conversations/Conversation participants - name: execution/Conversations/Conversation read state - name: execution/Triggers - name: execution/Triggers/Project schedules - name: execution/Triggers/Webhooks - name: execution/Triggers/Webhook events - name: execution/Runs - name: execution/Runs/Run Input Requests - name: execution/Runs/Runs - name: execution/Runs/Runtime - name: execution/Runs/Child Runs - name: execution/Runs/Conversation Runs - name: execution/Runs/Project Runs - name: execution/Runs/Webhook Runs - name: execution/Runs/Run Events - name: execution/Runs/Run Actions - name: execution/Runs/Run Artifacts - name: execution/Executors - name: execution/Executors/Connected agents - name: execution/Executors/Agent workers - name: evaluations/Evaluations - name: evaluations/Evaluations/Evaluations - name: evaluations/Evaluations/Evaluation Runs - name: ai-gateway/Models - name: ai-gateway/Models/Model discovery - name: ai-gateway/Models/Inference Models - name: ai-gateway/Models/Project inference policy - name: ai-gateway/Models/Account inference policy - name: ai-gateway/Inference - name: ai-gateway/Inference/OpenAI Chat Completions - name: ai-gateway/Inference/Embeddings - name: ai-gateway/Inference/OpenAI Responses - name: ai-gateway/Inference/Proxy metadata - name: ai-gateway/Inference/Anthropic Messages - name: ai-gateway/Inference/Provider gateway - name: ai-gateway/Inference/Gemini inference - name: ai-gateway/Inference/Image generation - name: mcp/Tools - name: mcp/Tools/MCP discovery - name: mcp/Authorization - name: mcp/Authorization/Protected resource discovery - name: integrations/Integrations - name: integrations/Integrations/Integration tools - name: integrations/Integrations/Integration catalog - name: integrations/Integrations/Project integrations - name: integrations/Connections - name: integrations/Connections/Connections - name: integrations/Channels - name: integrations/Channels/Channels - name: integrations/Channels/Setup lookups - name: integrations/External storage - name: integrations/External storage/External Files - name: knowledge/Documents - name: knowledge/Documents/Project knowledge - name: knowledge/Documents/Retrieval documents - name: knowledge/Search - name: knowledge/Search/Search - name: knowledge/Embeddings - name: knowledge/Embeddings/Project embeddings - name: deployments/Releases - name: deployments/Releases/Releases - name: deployments/Releases/Release Versions - name: deployments/Releases/Release Source Manifests - name: deployments/Deployments - name: deployments/Deployments/Project deployments - name: deployments/Artifacts - name: deployments/Artifacts/Dependencies - name: deployments/Artifacts/Release Asset Manifests - name: deployments/Artifacts/Style artifacts - name: runtime/Environments - name: runtime/Environments/Environments - name: runtime/Environments/Environment Domains - name: runtime/Environments/Environment variables - name: runtime/Environments/Project Domains - name: runtime/Environments/Environment Variable Keys - name: runtime/Servers - name: runtime/Servers/Environment Servers - name: runtime/Servers/Project servers - name: runtime/Sandboxes - name: runtime/Sandboxes/Sandbox Lifecycle - name: runtime/Sandboxes/Sandbox Commands - name: runtime/Sandboxes/Sandbox Environment - name: runtime/Sandboxes/Sandbox Health - name: runtime/Sandboxes/Sandbox Terminal - name: runtime/Cache - name: runtime/Cache/Project Cache - name: runtime/Cache/User Cache - name: observability/Logs - name: observability/Logs/Log entries - name: observability/Traces - name: observability/Traces/Trace spans - name: observability/Traces/Project traces - name: observability/Traces/Trace Search - name: observability/Metrics - name: observability/Metrics/Metric series - name: observability/Alerts - name: observability/Alerts/Project alerts - name: observability/Error types - name: observability/Error types/Error types - name: identity-access/Users - name: identity-access/Users/Account users - name: identity-access/Users/Project users - name: identity-access/Users/Current user - name: identity-access/Accounts - name: identity-access/Accounts/Accounts - name: identity-access/Invitations - name: identity-access/Invitations/Invitations - name: identity-access/Permissions - name: identity-access/Permissions/Feature gates - name: identity-access/Permissions/Project Ownership - name: identity-access/API keys - name: identity-access/API keys/API keys - name: identity-access/Authentication - name: identity-access/Authentication/Sign-in - name: identity-access/Authentication/Tokens - name: identity-access/Authorization - name: identity-access/Authorization/Authorized apps - name: identity-access/Authorization/General OAuth - name: identity-access/Authorization/Consent - name: billing-usage/Subscriptions - name: billing-usage/Subscriptions/Subscriptions - name: billing-usage/Subscriptions/Seats - name: billing-usage/Billing - name: billing-usage/Billing/Invoices - name: billing-usage/Billing/Payments - name: billing-usage/Billing/Payment Methods - name: billing-usage/Billing/Billing Details - name: billing-usage/Billing/Account billing - name: billing-usage/Credits - name: billing-usage/Credits/Credits - name: billing-usage/Budgets - name: billing-usage/Budgets/Budgets - name: billing-usage/Usage - name: billing-usage/Usage/API key usage - name: billing-usage/Usage/Account usage - name: billing-usage/Usage/Project usage - name: billing-usage/Analytics - name: billing-usage/Analytics/Conversation Analytics - name: billing-usage/Analytics/Run Analytics - name: platform/Other - name: platform/Other/API metadata paths: /api-keys/usage: get: tags: - billing-usage/Usage/API key usage summary: List API key usage description: List API key usage. operationId: listApiKeysUsage parameters: - schema: type: string enum: - 7d - 30d - 90d default: 30d description: >- Relative timeframe preset, counted in whole days of the requested timezone. required: false name: preset in: query - schema: type: string default: UTC description: >- IANA time zone for daily bucket boundaries, such as `Europe/Berlin`. Numeric UTC offsets are not accepted. required: false name: timezone in: query - schema: type: string description: >- Optional project UUID or slug. Scopes the listing to that project’s keys. required: false name: project_reference in: query responses: '200': description: >- AI spending by API key; `kind` separates individual keys from grouped usage, including requests without API key authentication. With `project_reference`: the project’s keys, requests without a key, and usage from deleted key records. Without it: the caller’s own keys and requests without a key; usage of a deleted key record cannot be recovered. Read from the AI usage ledger; `usd` is the customer charge at the credit rate and never provider cost. content: application/json: schema: type: object properties: timeframe: type: object properties: from: type: string description: Inclusive timeframe start timestamp. to: type: string description: Exclusive timeframe end timestamp. granularity: type: string enum: - day description: Bucket granularity. timezone: type: string description: IANA timezone used for buckets. bucket_count: type: number description: Number of daily buckets in the timeframe. required: - from - to - granularity - timezone - bucket_count attribution: type: object properties: enabled: type: boolean description: >- Whether the ledger is recording who caused each call right now. recording_since: type: - string - 'null' description: >- Time when the project first recorded caller attribution, or null if it never has. Recording can pause after this time. Usage recorded without attribution, including during deployment or while attribution is disabled, appears in an `unattributed` row even if a person or API key caused it. required: - enabled - recording_since description: >- Whether attribution is complete for the returned usage. Treat it as incomplete if `enabled` is false, `recording_since` is null, or the selected period includes an `unattributed` row. summary: type: object properties: credits: type: number description: Credits debited in the timeframe. usd: type: number description: Customer-billed USD for those credits. requests: type: number description: Number of provider calls recorded. input_tokens: type: number description: Input tokens. output_tokens: type: number description: Output tokens. cache_read_tokens: type: number description: Tokens read from the prompt cache. cache_creation_tokens: type: number description: Tokens written to the prompt cache. required: - credits - usd - requests - input_tokens - output_tokens - cache_read_tokens - cache_creation_tokens description: Sum of the rows below. keys: type: array items: type: object properties: kind: type: string enum: - api_key - no_api_key - other_keys - deleted_keys - unattributed description: >- Usage row type. `api_key` identifies one key. `no_api_key` groups usage without key authentication. `other_keys` groups usage from keys outside the listing, such as account-wide keys or newly created project keys. `deleted_keys` groups usage whose key record was removed when its creator was deleted. `unattributed` groups usage recorded without caller attribution and does not imply that no key caused it. Grouped rows have `api_key_id: null`; use this field to distinguish them. api_key_id: type: - string - 'null' format: uuid description: >- Null on every bucket row, none of which stands for a single key. name: type: string key_prefix: type: - string - 'null' project_id: type: - string - 'null' format: uuid revoked: type: boolean credits: type: number description: Credits debited in the timeframe. usd: type: number description: Customer-billed USD for those credits. requests: type: number description: Number of provider calls recorded. input_tokens: type: number description: Input tokens. output_tokens: type: number description: Output tokens. cache_read_tokens: type: number description: Tokens read from the prompt cache. cache_creation_tokens: type: number description: Tokens written to the prompt cache. required: - kind - api_key_id - name - key_prefix - project_id - revoked - credits - usd - requests - input_tokens - output_tokens - cache_read_tokens - cache_creation_tokens required: - timeframe - attribution - summary - keys '400': description: Bad request content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '401': description: Unauthorized content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '403': description: Forbidden content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '404': description: Not found content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '500': description: Server error content: application/problem+json: schema: $ref: '#/components/schemas/Problem' components: schemas: Problem: type: object properties: cause: type: string enum: - schedule_concurrency_forbidden - schedule_fire_in_progress - schedule_run_limit_reached description: Schedule admission refusal. idempotency: type: object properties: state: type: string enum: - in_progress - payload_mismatch - outcome_unknown operation: type: string minLength: 1 retryable: type: boolean retry_after_seconds: type: - integer - 'null' minimum: 0 expires_at: type: - string - 'null' recovery: type: object properties: available: type: boolean description: type: string resource_url: type: string required: - available - description required: - state - operation - retryable - retry_after_seconds - expires_at description: Replay status, retry timing, and recovery lookup. type: type: string description: URI reference identifying the problem type example: https://api.veryfront.com/errors/validation-failed title: type: string description: Short human-readable summary of the problem example: Validation Failed status: type: integer minimum: 100 maximum: 599 description: HTTP status code example: 400 code: type: string description: Stable machine-readable error code example: RUN_INVALID_INPUT detail: type: string description: Human-readable explanation specific to this occurrence example: The 'email' field must be a valid email address instance: type: string description: URI reference identifying the specific occurrence example: /projects/my-project/members slug: type: string description: Stable identifier for the problem type example: validation-failed category: type: string enum: - AUTH - RESOURCE - VALIDATION - DATABASE - SUBSCRIPTION - INTEGRATION - INTERNAL description: API error category example: VALIDATION suggestion: type: string description: Suggested action to resolve the problem example: >- Check the request body and query parameters against the API documentation. errors: type: array items: type: object properties: field: type: string description: Field path that caused the error example: email message: type: string description: Error message for this field example: Invalid email format code: type: string description: Error code for this field example: INVALID_FORMAT required: - field - message description: Detailed field-level errors for validation failures required: - type - title - status securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT or API Key description: >- Use a JWT bearer token or a Veryfront API key in the `Authorization` header. apiKeyAuth: type: apiKey in: header name: X-API-Key description: Alternative API key header for `vf__` tokens. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.