> ## Documentation Index > Fetch the complete documentation index at: https://docs.naga.ac/llms.txt > Use this file to discover all available pages before exploring further. # List video models > Lists the video models on sale, with the durations, resolutions, aspect ratios and frame images each accepts and its price per second of video. Requires an API key. ## OpenAPI ````yaml /openapi/naga-api.json get /v1/videos/models openapi: 3.1.0 info: title: NagaAI API description: >- NagaAI routes inference requests to a pool of upstream providers behind one endpoint. Requests speak the OpenAI or the Anthropic dialect, and the gateway selects a provider that serves the requested model. Two credentials exist and they are not interchangeable. An API key reaches models. A provisioning key manages the account: its keys, its balance, and its usage. Each operation declares which one it accepts. NagaAI charges the account in credits for the tokens a request consumes, at the published price of the model that served it. One credit costs one US dollar. termsOfService: https://naga.ac/legal/terms contact: name: NagaAI url: https://naga.ac version: '2026-03-31' summary: >- One API to many model providers, in the OpenAI and Anthropic request formats. servers: - url: https://api.naga.ac description: Production security: [] tags: - name: Chat Completions description: >- The OpenAI Chat Completions dialect, with streaming, tools and multimodal input. externalDocs: url: https://platform.openai.com/docs/api-reference/chat description: The OpenAI reference for this dialect. - name: Messages description: >- The Anthropic Messages dialect, as Claude-style clients and agents speak it. externalDocs: url: https://docs.anthropic.com/en/api/messages description: The Anthropic reference for this dialect. - name: Responses description: >- The OpenAI Responses dialect, with structured input, tools and streamed output items. externalDocs: url: https://platform.openai.com/docs/api-reference/responses description: The OpenAI reference for this dialect. - name: Embeddings description: Vector embeddings for search, retrieval, clustering and ranking. externalDocs: url: https://platform.openai.com/docs/api-reference/embeddings description: The OpenAI reference for this route. - name: Images description: Image generation and editing with multimodal models. externalDocs: url: https://platform.openai.com/docs/api-reference/images description: The OpenAI reference for these routes. - name: Audio description: Speech from text, and text from uploaded audio. externalDocs: url: https://platform.openai.com/docs/api-reference/audio description: The OpenAI reference for these routes. - name: Videos description: 'Video generation as a job: submit it, poll it, download the file.' externalDocs: url: https://docs.naga.ac/api/videos description: The NagaAI guide to video generation. - name: Moderations description: Safety classification of text and image input. externalDocs: url: https://platform.openai.com/docs/api-reference/moderations description: The OpenAI reference for this route. - name: Models description: The catalog of models, their capabilities and their prices. externalDocs: url: https://platform.openai.com/docs/api-reference/models description: The OpenAI reference for this route. - name: Startups description: The organizations whose models the catalog carries. externalDocs: url: https://docs.naga.ac/get-started/models description: The NagaAI guide to the model catalog. - name: Account description: The account's balance and its usage, behind a provisioning key. externalDocs: url: https://docs.naga.ac/account/balance-and-activity description: The NagaAI guide to balance and activity. - name: API Keys description: The account's API keys, behind a provisioning key. externalDocs: url: https://docs.naga.ac/account/api-keys description: The NagaAI guide to API keys. paths: /v1/videos/models: get: tags: - Videos summary: List video models description: >- Lists the video models on sale, with the durations, resolutions, aspect ratios and frame images each accepts and its price per second of video. Requires an API key. operationId: list_video_models responses: '200': description: >- Every video model on sale, with what it accepts and its price per second. content: application/json: schema: $ref: '#/components/schemas/VideoModelsResponse' examples: basic: summary: One model and its prices per second value: object: list data: - id: kling-v3.0-pro supported_durations: - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 supported_resolutions: - 720p supported_aspect_ratios: - '16:9' - '9:16' - '1:1' supported_frame_images: - first_frame - last_frame generate_audio: true seed: false pricing: - resolution: 720p with_audio: false per_second: '0.056' - resolution: 720p with_audio: true per_second: '0.084' x-retry-safe: false '401': description: >- The API key is missing, malformed, disabled, or does not belong to an account that may call this route. content: application/json: schema: $ref: '#/components/schemas/ErrorEnvelope' examples: invalid-api-key: summary: 401 — the key is not one this gateway serves value: error: type: invalid_api_key message: >- The provided API key is invalid. Please ensure your API key is correct and active. You can find more information about obtaining a key on our website: https://naga.ac If you just created this key, wait a few minutes and try again. x-retry-safe: false '500': description: >- The gateway failed for a reason of its own. Report it — this status marks NagaAI's own bugs. content: application/json: schema: $ref: '#/components/schemas/ErrorEnvelope' x-retry-safe: true '503': description: >- A store the gateway needs did not respond. `Retry-After`, when present, carries the suggested wait. headers: Retry-After: schema: type: string description: How long to wait before retrying, in seconds. content: application/json: schema: $ref: '#/components/schemas/ErrorEnvelope' x-retry-safe: true security: - bearerAuth: [] - xApiKeyAuth: [] x-codeSamples: - lang: bash label: curl source: |- curl https://api.naga.ac/v1/videos/models \ -H "Authorization: Bearer $NAGA_API_KEY" components: schemas: VideoModelsResponse: type: object description: The video models the caller can submit for. required: - object - data properties: object: type: string description: Always `list`. example: list data: type: array items: $ref: '#/components/schemas/VideoModel' description: One entry per model. ErrorEnvelope: type: object description: >- `{"error": {…}}` — the body of every non-2xx answer outside `/v1/messages`. required: - error properties: error: allOf: - $ref: '#/components/schemas/ErrorBody' description: The failure itself, and the envelope's only member. VideoModel: type: object description: What one video model accepts and what a second of it costs. required: - id - supported_durations - supported_resolutions - supported_aspect_ratios - supported_frame_images - generate_audio - seed - pricing properties: id: type: string description: The model id to submit with. supported_durations: type: array items: type: integer format: int64 description: Clip lengths in seconds the model accepts. supported_resolutions: type: array items: type: string description: Resolutions the model accepts. supported_aspect_ratios: type: array items: type: string description: Aspect ratios the model accepts. supported_frame_images: type: array items: type: string description: >- Frame types `frame_images` may pin: a subset of `first_frame` and `last_frame`. generate_audio: type: boolean description: 'Whether `generate_audio: true` is accepted.' seed: type: boolean description: Whether `seed` is honoured. pricing: type: array items: $ref: '#/components/schemas/VideoPrice' description: The price of one second, per resolution and with or without audio. ErrorBody: type: object description: 'The `error` member: what went wrong, in the caller''s terms.' required: - type - message properties: type: type: string description: >- The class of the failure; a provider's own class can reach you unchanged. examples: - invalid_request_error - authentication_required - invalid_api_key - invalid_provisioning_key - invalid_session_token - disabled_api_key - disabled_provisioning_key - expired_api_key - credit_limit_exceeded - rate_limit_exceeded - model_deprecated - inappropriate_content - billing_metering_incomplete - billing_request_id_invalid - billing_writer_missing - server_error message: type: string description: The human-readable sentence shown to the caller. code: type: - string - 'null' description: The finer-grained code, when the failure has one. param: type: - string - 'null' description: The request field the failure is about, when it is about one. VideoPrice: type: object description: The price of one second of video for one SKU. required: - resolution - with_audio - per_second properties: resolution: type: string description: The resolution this price applies to. with_audio: type: boolean description: Whether this price is for a clip with a soundtrack. per_second: type: string description: Credits per second, as a decimal string. securitySchemes: bearerAuth: type: http scheme: bearer description: 'An account API key. Send it as `Authorization: Bearer `.' xApiKeyAuth: type: apiKey in: header name: x-api-key description: >- An account API key. Send it as `x-api-key: `, the header Anthropic-style clients use. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.