> ## Documentation Index > Fetch the complete documentation index at: https://ngrok.com/docs/llms.txt > Use this file to discover all available pages before exploring further. > List all user-defined AI Gateway providers for the authenticated account. Built-in # List AI Gateway providers ## OpenAPI ````yaml openapi/ai-gateway.yaml GET /providers openapi: 3.0.3 info: title: AI Gateway APIs version: 0.1.0 description: | Control-plane HTTP APIs served by the ai-gateway-control service. servers: - url: https://api.ngrok.ai security: - bearerAuth: [] tags: - name: AI Gateway Access Key Configurations description: Manage reusable access key configurations (scope and routing rules). - name: AI Gateway Access Keys description: Manage ngrok-managed access keys associated with AI Gateway endpoints. - name: AI Gateway Configuration description: >- Manage per-account AI Gateway configuration (timeouts, token caps, metadata). - name: AI Gateway API Keys description: Manage customer-facing AI Gateway API Keys. - name: AI Gateway Credits description: Purchase AI Gateway credits via Stripe Checkout. - name: AI Gateway Providers description: Manage AI Gateway providers and the models they expose. - name: AI Gateway Custom Providers description: Manage custom AI Gateway providers and the models they expose. - name: AI Gateway Provider Keys description: Manage provider keys attached to AI Gateway managed access keys. - name: AI Gateway Usage description: >- Read-only AI Gateway usage events and aggregated usage overview for the authenticated account. paths: /providers: get: tags: - AI Gateway Providers summary: List AI Gateway providers description: > List all user-defined AI Gateway providers for the authenticated account. Built-in providers come from the ngrok catalog, not this resource. operationId: ListAIGatewayProviders parameters: - $ref: '#/components/parameters/BeforeID' - $ref: '#/components/parameters/Limit' responses: '200': description: A page of AI Gateway providers. content: application/json: schema: $ref: '#/components/schemas/AIGatewayProviderList' default: $ref: '#/components/responses/Error' components: parameters: BeforeID: name: beforeId in: query required: false description: Returns items before this resource identifier in descending ID order. schema: type: string Limit: name: limit in: query required: false description: >- Maximum number of items to return. Defaults to 100 and may not exceed 100. schema: type: integer format: int32 minimum: 1 maximum: 100 schemas: AIGatewayProviderList: type: object additionalProperties: false required: - aiGatewayProviders - uri properties: aiGatewayProviders: type: array description: The AI Gateway providers for this account. items: $ref: '#/components/schemas/AIGatewayProvider' uri: type: string description: URI of this list resource. nextPageUri: type: string nullable: true description: URI of the next page of results, or null if there is no next page. AIGatewayProvider: type: object additionalProperties: false required: - id - uri - providerId - name - baseUrl - createdAt - updatedAt - createdBy - lastUpdatedBy properties: id: type: string description: Unique identifier for this provider. uri: type: string description: URI of this AI Gateway Provider API resource. providerId: type: string description: >- Provider identifier used as the address segment in model strings (for example "internal-vllm"). name: type: string description: User-friendly label for this provider. baseUrl: type: string description: Base URL of the provider's API endpoint. metadata: type: string description: Arbitrary user-defined metadata for this provider. createdAt: type: string format: date-time description: Timestamp when the provider was created. updatedAt: type: string format: date-time description: Timestamp when the provider was last updated. createdBy: $ref: '#/components/schemas/Ref' lastUpdatedBy: $ref: '#/components/schemas/Ref' supportedApiSurfaces: type: array description: API surfaces supported by this provider. items: $ref: '#/components/schemas/SupportedAPISurface' models: type: array description: Models exposed by this provider. items: $ref: '#/components/schemas/AIGatewayProviderModel' Error: type: object additionalProperties: false required: - statusCode - msg - details properties: errorCode: type: string description: Stable ngrok error code when available. statusCode: type: integer format: int32 description: HTTP status code for this error. msg: type: string description: Human-readable error message. details: type: object description: Structured error details. additionalProperties: type: string Ref: type: object additionalProperties: false required: - id - uri properties: id: type: string description: Resource identifier. uri: type: string description: URI for locating the resource. SupportedAPISurface: type: object additionalProperties: false required: - format properties: format: type: string description: | The API format this surface conforms to (for example "openai" or "anthropic"). Validated against ngrok's known formats at runtime. surface: type: string description: | The specific API surface within the format (for example "chat-completions", "responses", or "messages"). Validated against ngrok's known surfaces at runtime. supportedParams: type: array description: Top-level request body parameters supported by this surface. items: $ref: '#/components/schemas/SupportedAPISurfaceParam' AIGatewayProviderModel: type: object additionalProperties: false required: - id - modelId properties: id: type: string description: Unique identifier for this model. modelId: type: string description: Model identifier (for example "llama-3"). SupportedAPISurfaceParam: type: object additionalProperties: false required: - name properties: name: type: string description: Name of a supported top-level request body parameter. responses: Error: description: API error response. content: application/json: schema: $ref: '#/components/schemas/Error' securitySchemes: bearerAuth: type: http scheme: bearer ````