--- name: azure-mgmt-apicenter-dotnet description: Azure API Center SDK for .NET. Centralized API inventory management with governance, versioning, and discovery. risk: unknown source: community date_added: '2026-02-27' --- # Azure.ResourceManager.ApiCenter (.NET) Centralized API inventory and governance SDK for managing APIs across your organization. ## Installation ```bash dotnet add package Azure.ResourceManager.ApiCenter dotnet add package Azure.Identity ``` **Current Version**: v1.0.0 (GA) **API Version**: 2024-03-01 ## Environment Variables ```bash AZURE_SUBSCRIPTION_ID= AZURE_RESOURCE_GROUP= AZURE_APICENTER_SERVICE_NAME= ``` ## Authentication ```csharp using Azure.Identity; using Azure.ResourceManager; using Azure.ResourceManager.ApiCenter; ArmClient client = new ArmClient(new DefaultAzureCredential()); ``` ## Resource Hierarchy ``` Subscription └── ResourceGroup └── ApiCenterService # API inventory service ├── Workspace # Logical grouping of APIs │ ├── Api # API definition │ │ └── ApiVersion # Version of the API │ │ └── ApiDefinition # OpenAPI/GraphQL/etc specification │ ├── Environment # Deployment target (dev/staging/prod) │ └── Deployment # API deployed to environment └── MetadataSchema # Custom metadata definitions ``` ## Core Workflows ### 1. Create API Center Service ```csharp using Azure.ResourceManager.ApiCenter; using Azure.ResourceManager.ApiCenter.Models; ResourceGroupResource resourceGroup = await client .GetDefaultSubscriptionAsync() .Result .GetResourceGroupAsync("my-resource-group"); ApiCenterServiceCollection services = resourceGroup.GetApiCenterServices(); ApiCenterServiceData data = new ApiCenterServiceData(AzureLocation.EastUS) { Identity = new ManagedServiceIdentity(ManagedServiceIdentityType.SystemAssigned) }; ArmOperation operation = await services .CreateOrUpdateAsync(WaitUntil.Completed, "my-api-center", data); ApiCenterServiceResource service = operation.Value; ``` ### 2. Create Workspace ```csharp ApiCenterWorkspaceCollection workspaces = service.GetApiCenterWorkspaces(); ApiCenterWorkspaceData workspaceData = new ApiCenterWorkspaceData { Title = "Engineering APIs", Description = "APIs owned by the engineering team" }; ArmOperation operation = await workspaces .CreateOrUpdateAsync(WaitUntil.Completed, "engineering", workspaceData); ApiCenterWorkspaceResource workspace = operation.Value; ``` ### 3. Create API ```csharp ApiCenterApiCollection apis = workspace.GetApiCenterApis(); ApiCenterApiData apiData = new ApiCenterApiData { Title = "Orders API", Description = "API for managing customer orders", Kind = ApiKind.Rest, LifecycleStage = ApiLifecycleStage.Production, TermsOfService = new ApiTermsOfService { Uri = new Uri("https://example.com/terms") }, ExternalDocumentation = { new ApiExternalDocumentation { Title = "Documentation", Uri = new Uri("https://docs.example.com/orders") } }, Contacts = { new ApiContact { Name = "API Support", Email = "api-support@example.com" } } }; // Add custom metadata apiData.CustomProperties = BinaryData.FromObjectAsJson(new { team = "orders-team", costCenter = "CC-1234" }); ArmOperation operation = await apis .CreateOrUpdateAsync(WaitUntil.Completed, "orders-api", apiData); ApiCenterApiResource api = operation.Value; ``` ### 4. Create API Version ```csharp ApiCenterApiVersionCollection versions = api.GetApiCenterApiVersions(); ApiCenterApiVersionData versionData = new ApiCenterApiVersionData { Title = "v1.0.0", LifecycleStage = ApiLifecycleStage.Production }; ArmOperation operation = await versions .CreateOrUpdateAsync(WaitUntil.Completed, "v1-0-0", versionData); ApiCenterApiVersionResource version = operation.Value; ``` ### 5. Create API Definition (Upload OpenAPI Spec) ```csharp ApiCenterApiDefinitionCollection definitions = version.GetApiCenterApiDefinitions(); ApiCenterApiDefinitionData definitionData = new ApiCenterApiDefinitionData { Title = "OpenAPI Specification", Description = "Orders API OpenAPI 3.0 definition" }; ArmOperation operation = await definitions .CreateOrUpdateAsync(WaitUntil.Completed, "openapi", definitionData); ApiCenterApiDefinitionResource definition = operation.Value; // Import specification string openApiSpec = await File.ReadAllTextAsync("orders-api.yaml"); ApiSpecImportContent importContent = new ApiSpecImportContent { Format = ApiSpecImportSourceFormat.Inline, Value = openApiSpec, Specification = new ApiSpecImportSpecification { Name = "openapi", Version = "3.0.1" } }; await definition.ImportSpecificationAsync(WaitUntil.Completed, importContent); ``` ### 6. Export API Specification ```csharp ApiCenterApiDefinitionResource definition = await client .GetApiCenterApiDefinitionResource(definitionResourceId) .GetAsync(); ArmOperation operation = await definition .ExportSpecificationAsync(WaitUntil.Completed); ApiSpecExportResult result = operation.Value; // result.Format - e.g., "inline" // result.Value - the specification content ``` ### 7. Create Environment ```csharp ApiCenterEnvironmentCollection environments = workspace.GetApiCenterEnvironments(); ApiCenterEnvironmentData envData = new ApiCenterEnvironmentData { Title = "Production", Description = "Production environment", Kind = ApiCenterEnvironmentKind.Production, Server = new ApiCenterEnvironmentServer { ManagementPortalUris = { new Uri("https://portal.azure.com") } }, Onboarding = new EnvironmentOnboardingModel { Instructions = "Contact platform team for access", DeveloperPortalUris = { new Uri("https://developer.example.com") } } }; ArmOperation operation = await environments .CreateOrUpdateAsync(WaitUntil.Completed, "production", envData); ``` ### 8. Create Deployment ```csharp ApiCenterDeploymentCollection deployments = workspace.GetApiCenterDeployments(); // Get environment resource ID ResourceIdentifier envResourceId = ApiCenterEnvironmentResource.CreateResourceIdentifier( subscriptionId, resourceGroupName, serviceName, workspaceName, "production"); // Get API definition resource ID ResourceIdentifier definitionResourceId = ApiCenterApiDefinitionResource.CreateResourceIdentifier( subscriptionId, resourceGroupName, serviceName, workspaceName, "orders-api", "v1-0-0", "openapi"); ApiCenterDeploymentData deploymentData = new ApiCenterDeploymentData { Title = "Orders API - Production", Description = "Production deployment of Orders API v1.0.0", EnvironmentId = envResourceId, DefinitionId = definitionResourceId, State = ApiCenterDeploymentState.Active, Server = new ApiCenterDeploymentServer { RuntimeUris = { new Uri("https://api.example.com/orders") } } }; ArmOperation operation = await deployments .CreateOrUpdateAsync(WaitUntil.Completed, "orders-api-prod", deploymentData); ``` ### 9. Create Metadata Schema ```csharp ApiCenterMetadataSchemaCollection schemas = service.GetApiCenterMetadataSchemas(); string jsonSchema = """ { "type": "object", "properties": { "team": { "type": "string", "title": "Owning Team" }, "costCenter": { "type": "string", "title": "Cost Center" }, "dataClassification": { "type": "string", "enum": ["public", "internal", "confidential"], "title": "Data Classification" } }, "required": ["team"] } """; ApiCenterMetadataSchemaData schemaData = new ApiCenterMetadataSchemaData { Schema = jsonSchema, AssignedTo = { new MetadataAssignment { Entity = MetadataAssignmentEntity.Api, Required = true } } }; ArmOperation operation = await schemas .CreateOrUpdateAsync(WaitUntil.Completed, "api-metadata", schemaData); ``` ### 10. List and Search APIs ```csharp // List all APIs in a workspace ApiCenterWorkspaceResource workspace = await client .GetApiCenterWorkspaceResource(workspaceResourceId) .GetAsync(); await foreach (ApiCenterApiResource api in workspace.GetApiCenterApis()) { Console.WriteLine($"API: {api.Data.Title}"); Console.WriteLine($" Kind: {api.Data.Kind}"); Console.WriteLine($" Stage: {api.Data.LifecycleStage}"); // List versions await foreach (ApiCenterApiVersionResource version in api.GetApiCenterApiVersions()) { Console.WriteLine($" Version: {version.Data.Title}"); } } // List environments await foreach (ApiCenterEnvironmentResource env in workspace.GetApiCenterEnvironments()) { Console.WriteLine($"Environment: {env.Data.Title} ({env.Data.Kind})"); } // List deployments await foreach (ApiCenterDeploymentResource deployment in workspace.GetApiCenterDeployments()) { Console.WriteLine($"Deployment: {deployment.Data.Title}"); Console.WriteLine($" State: {deployment.Data.State}"); } ``` ## Key Types Reference | Type | Purpose | |------|---------| | `ApiCenterServiceResource` | API Center service instance | | `ApiCenterWorkspaceResource` | Logical grouping of APIs | | `ApiCenterApiResource` | Individual API | | `ApiCenterApiVersionResource` | Version of an API | | `ApiCenterApiDefinitionResource` | API specification (OpenAPI, etc.) | | `ApiCenterEnvironmentResource` | Deployment environment | | `ApiCenterDeploymentResource` | API deployment to environment | | `ApiCenterMetadataSchemaResource` | Custom metadata schema | | `ApiKind` | rest, graphql, grpc, soap, webhook, websocket, mcp | | `ApiLifecycleStage` | design, development, testing, preview, production, deprecated, retired | | `ApiCenterEnvironmentKind` | development, testing, staging, production | | `ApiCenterDeploymentState` | active, inactive | ## Best Practices 1. **Organize with workspaces** — Group APIs by team, domain, or product 2. **Use metadata schemas** — Define custom properties for governance 3. **Track lifecycle stages** — Keep API status current (design → production → deprecated) 4. **Document environments** — Include onboarding instructions and portal URIs 5. **Version consistently** — Use semantic versioning for API versions 6. **Import specifications** — Upload OpenAPI/GraphQL specs for discovery 7. **Link deployments** — Connect APIs to their runtime environments 8. **Use managed identity** — Enable SystemAssigned identity for secure integrations ## Error Handling ```csharp using Azure; try { ArmOperation operation = await apis .CreateOrUpdateAsync(WaitUntil.Completed, "my-api", apiData); } catch (RequestFailedException ex) when (ex.Status == 409) { Console.WriteLine("API already exists with conflicting configuration"); } catch (RequestFailedException ex) when (ex.Status == 400) { Console.WriteLine($"Invalid request: {ex.Message}"); } catch (RequestFailedException ex) { Console.WriteLine($"Azure error: {ex.Status} - {ex.Message}"); } ``` ## Related SDKs | SDK | Purpose | Install | |-----|---------|---------| | `Azure.ResourceManager.ApiCenter` | API Center management (this SDK) | `dotnet add package Azure.ResourceManager.ApiCenter` | | `Azure.ResourceManager.ApiManagement` | API gateway and policies | `dotnet add package Azure.ResourceManager.ApiManagement` | ## Reference Links | Resource | URL | |----------|-----| | NuGet Package | https://www.nuget.org/packages/Azure.ResourceManager.ApiCenter | | API Reference | https://learn.microsoft.com/dotnet/api/azure.resourcemanager.apicenter | | Product Documentation | https://learn.microsoft.com/azure/api-center/ | | GitHub Source | https://github.com/Azure/azure-sdk-for-net/tree/main/sdk/apicenter/Azure.ResourceManager.ApiCenter | ## When to Use This skill is applicable to execute the workflow or actions described in the overview. ## Limitations - Use this skill only when the task clearly matches the scope described above. - Do not treat the output as a substitute for environment-specific validation, testing, or expert review. - Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.