openapi: 3.1.0 info: title: NuGet Server API (V3) PackageContent Registration API description: HTTP endpoints for discovering, downloading, and publishing NuGet packages against nuget.org and compatible package sources. Entry point is the service index. Endpoints below cover service index, search, registration metadata, and package content (flat container). version: '3' servers: - url: https://api.nuget.org/v3 description: nuget.org V3 API root security: [] tags: - name: Registration paths: /registration5-semver1/{id}/index.json: get: tags: - Registration summary: Get registration index for a package operationId: getRegistrationIndex parameters: - name: id in: path required: true schema: type: string responses: '200': description: Registration index content: application/json: schema: type: object '404': description: Not found components: securitySchemes: apiKey: type: apiKey in: header name: X-NuGet-ApiKey description: Required only for publish/delete operations on nuget.org. x-generated-from: https://learn.microsoft.com/en-us/nuget/api/overview x-generated-by: claude-genwave10-08-2026-05-23