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The aspire do command, now in an early preview stage, is billed as a complete reimagination of building, publishing, and deploying pipelines. Instead of a monolithic “hit deploy and pray” experience, aspire do breaks everything down into discrete, parallelizable steps with dependency tracking, Microsoft said. Independent operations are automatically parallelized, making for fast deployments. Also, the Aspire dashboard now includes a preview of an MCP server that lets AI assistants directly query a running application. The MCP server enables AI coding assistants to list all resources with their state and endpoints, access console logs in real time, retrieve structured logs and traces, and execute commands on resources.
Previously called .NET Aspire, Aspire provides tools, packages, and templates for building observable, production-ready distributed apps. Aspire provides a unified toolchain for launching and debugging an application locally with one command, then deploying to Kubernetes, the cloud, or a user’s own servers via the same composition, according to Microsoft. Aspire 13 requires the .NET 10 SDK or later.
Microsoft noted a few other new features and improvements in Aspire 13. Database resources now automatically expose multiple connection string formats, including the URI format for Python apps and JDBC format for Java apps. Aspire 13 automatically configures certificate trust for Python (SSL_CERT_FILE), Node.js (NODE_EXTRA_CA_CERTS), and containers. And Aspire now generates optimized multi-stage Dockerfiles that detect a Node version from .nvmrc, .node-version, or package.json.
