> ## Documentation Index > Fetch the complete documentation index at: https://opentouter.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # List endpoints for an image model > Returns the full per-endpoint records for an image model: each endpoint's definitive supported parameters, pricing, and passthrough allowlist. ## OpenAPI ````yaml /openapi/openapi.yaml get /images/models/{author}/{slug}/endpoints openapi: 3.1.0 info: contact: email: support@openrouter.ai name: OpenRouter Support url: https://openrouter.ai/docs description: OpenAI-compatible API with additional OpenRouter features license: name: MIT url: https://opensource.org/licenses/MIT title: OpenRouter API version: 1.0.0 servers: - description: Production server url: https://openrouter.ai/api/v1 x-speakeasy-server-id: production security: - apiKey: [] tags: - description: API key management endpoints name: API Keys - description: Analytics and usage endpoints name: Analytics - description: Anthropic Messages endpoints name: Anthropic Messages - description: BYOK endpoints name: BYOK - description: Benchmarks endpoints name: Benchmarks - description: Chat completion endpoints name: Chat - description: Task classification market-share endpoints name: Classifications - description: Credit management endpoints name: Credits - description: Datasets endpoints name: Datasets - description: Text embedding endpoints name: Embeddings - description: Endpoint information name: Endpoints - description: Files endpoints name: Files - description: Generation history endpoints name: Generations - description: Guardrails endpoints name: Guardrails - description: Images endpoints name: Images - description: Model information endpoints name: Models - description: OAuth authentication endpoints name: OAuth - description: Observability endpoints name: Observability - description: Organization endpoints name: Organization - description: Presets endpoints name: Presets - description: Provider information endpoints name: Providers - description: Rerank endpoints name: Rerank - description: Speech-to-text endpoints name: STT x-displayName: Transcriptions - description: Text-to-speech endpoints name: TTS x-displayName: Speech - description: Video Generation endpoints name: Video Generation - description: Workspaces endpoints name: Workspaces - description: beta.Analytics endpoints name: beta.Analytics - description: beta.responses endpoints name: beta.responses externalDocs: description: OpenRouter Documentation url: https://openrouter.ai/docs paths: /images/models/{author}/{slug}/endpoints: get: tags: - Images summary: List endpoints for an image model description: >- Returns the full per-endpoint records for an image model: each endpoint's definitive supported parameters, pricing, and passthrough allowlist. operationId: listImageModelEndpoints parameters: - description: Model author/organization in: path name: author required: true schema: description: Model author/organization example: bytedance-seed type: string - description: Model slug in: path name: slug required: true schema: description: Model slug example: seedream-4.5 type: string responses: '200': content: application/json: example: endpoints: - allowed_passthrough_parameters: [] pricing: - billable: output_image cost_usd: 0.05 unit: image provider_name: Bytedance provider_slug: bytedance provider_tag: bytedance supported_parameters: resolution: type: enum values: - 1K - 2K - 4K supports_streaming: false id: bytedance-seed/seedream-4.5 schema: $ref: '#/components/schemas/ImageModelEndpointsResponse' description: The full per-endpoint records for an image model '404': content: application/json: example: error: code: 404 message: Resource not found schema: $ref: '#/components/schemas/NotFoundResponse' description: Not Found - Resource does not exist '500': content: application/json: example: error: code: 500 message: Internal Server Error schema: $ref: '#/components/schemas/InternalServerResponse' description: Internal Server Error - Unexpected server error components: schemas: ImageModelEndpointsResponse: description: The full per-endpoint records for an image model. example: endpoints: - allowed_passthrough_parameters: [] pricing: - billable: output_image cost_usd: 0.05 unit: image provider_name: Bytedance provider_slug: bytedance provider_tag: bytedance supported_parameters: resolution: type: enum values: - 1K - 2K - 4K supports_streaming: false id: bytedance-seed/seedream-4.5 properties: endpoints: items: $ref: '#/components/schemas/ImageEndpoint' type: array id: description: Model slug example: bytedance-seed/seedream-4.5 type: string required: - id - endpoints type: object NotFoundResponse: description: Not Found - Resource does not exist example: error: code: 404 message: Resource not found properties: error: $ref: '#/components/schemas/NotFoundResponseErrorData' openrouter_metadata: additionalProperties: nullable: true nullable: true type: object user_id: nullable: true type: string required: - error type: object InternalServerResponse: description: Internal Server Error - Unexpected server error example: error: code: 500 message: Internal Server Error properties: error: $ref: '#/components/schemas/InternalServerResponseErrorData' openrouter_metadata: additionalProperties: nullable: true nullable: true type: object user_id: nullable: true type: string required: - error type: object ImageEndpoint: description: An endpoint that serves a given image model. example: allowed_passthrough_parameters: [] pricing: - billable: output_image cost_usd: 0.05 unit: image provider_name: Bytedance provider_slug: bytedance provider_tag: bytedance supported_parameters: resolution: type: enum values: - 1K - 2K - 4K seed: type: boolean supports_streaming: false properties: allowed_passthrough_parameters: description: >- Provider-specific options accepted under provider.options[provider_slug]. example: [] items: type: string type: array pricing: description: Billable pricing lines for this endpoint. example: - billable: output_image cost_usd: 0.05 unit: image items: $ref: '#/components/schemas/ImagePricingEntry' type: array provider_name: description: Provider display name example: Bytedance type: string provider_slug: description: Provider slug example: bytedance type: string provider_tag: description: Provider tag for request-side selection example: bytedance nullable: true type: string supported_parameters: allOf: - $ref: '#/components/schemas/SupportedParameters' - description: >- The definitive set of parameters this endpoint accepts for this model. supports_streaming: description: >- Whether this endpoint supports native SSE streaming (`stream: true` in the request). example: false type: boolean required: - provider_name - provider_slug - provider_tag - supported_parameters - allowed_passthrough_parameters - supports_streaming - pricing type: object NotFoundResponseErrorData: description: Error data for NotFoundResponse example: code: 404 message: Resource not found properties: code: type: integer message: type: string metadata: additionalProperties: nullable: true nullable: true type: object required: - code - message type: object InternalServerResponseErrorData: description: Error data for InternalServerResponse example: code: 500 message: Internal Server Error properties: code: type: integer message: type: string metadata: additionalProperties: nullable: true nullable: true type: object required: - code - message type: object ImagePricingEntry: description: One billable pricing line for an image provider. example: billable: output_image cost_usd: 0.05 unit: image properties: billable: enum: - output_image - input_image - input_font - input_reference - input_text type: string cost_usd: format: double type: number unit: enum: - image - megapixel - token type: string variant: type: string required: - billable - unit - cost_usd type: object SupportedParameters: additionalProperties: $ref: '#/components/schemas/CapabilityDescriptor' description: >- Union of supported parameters across every endpoint of this model. Coarse discovery aid; the definitive per-endpoint set is behind the endpoints URL. example: output_compression: max: 100 min: 0 type: range resolution: type: enum values: - 1K - 2K - 4K seed: type: boolean type: object CapabilityDescriptor: description: A typed descriptor for one supported request parameter. discriminator: mapping: boolean: $ref: '#/components/schemas/BooleanCapability' enum: $ref: '#/components/schemas/EnumCapability' range: $ref: '#/components/schemas/RangeCapability' propertyName: type example: type: enum values: - 1K - 2K - 4K oneOf: - $ref: '#/components/schemas/EnumCapability' - $ref: '#/components/schemas/RangeCapability' - $ref: '#/components/schemas/BooleanCapability' BooleanCapability: description: A supported-or-not flag. Present means the parameter is accepted. example: type: boolean properties: type: enum: - boolean type: string required: - type type: object EnumCapability: description: A parameter that accepts one of a discrete set of string values. example: type: enum values: - 1K - 2K - 4K properties: type: enum: - enum type: string values: items: type: string type: array required: - type - values type: object RangeCapability: description: A parameter that accepts any value within an inclusive numeric range. example: max: 100 min: 0 type: range properties: max: type: number min: type: number type: enum: - range type: string required: - type - min - max type: object securitySchemes: apiKey: description: API key as bearer token in Authorization header scheme: bearer type: http ````