How to deploy an ASP.NET Core app | Ample

The short version

To deploy an ASP.NET Core app on Ample, run ample deploy . --name <app-name> --public in the project directory, or ask your coding agent to deploy it to Ample. Ample builds it on the dotnet-10 template, runs the tested start command below and returns a public HTTPS URL.

Deploy ASP.NET Core

Ask your coding agent

Install the Ample CLI and create an account (no browser or card needed), then ask Claude Code, Codex, Cursor or any agent with a shell to deploy the project. See Ample for coding agents.

curl -fsSL https://get.ample.computer/install.sh | sh
ample auth signup
# then, in your agent:
# "Deploy this ASP.NET Core app to Ample"

Or deploy from the CLI

Run the deploy once from the project directory. It waits until the app is live or failed and prints the URL; exit 0 is live, 1 failed, 2 needs input.

ample deploy . --name <app-name> --public

Or use MCP

Agents connected to the Ample MCP server (https://api.ample.computer/mcp, or ample mcp over stdio) call ample_deploy with the same arguments.

Verify

Open the URL. If the deploy failed, read the build log, then the runtime log, fix the cause and deploy again.

ample logs <deployment_id> --kind build

What Ample runs

| Template | dotnet-10 | | Build | dotnet publish -c Release -o out | | Start | ASPNETCORE_URLS=http://0.0.0.0:$PORT dotnet out/$(basename $(ls out/*.runtimeconfig.json | head -n 1) .runtimeconfig.json).dll | | Tested size | s-1vcpu-1gb |

NET Core app on Ample. Verified on ASP.NET Core: the app built and started with the documented commands and answered on its public HTTPS URL. Build and start: dotnet publish -c Release -o out in the builder, then dotnet .dll on the dotnet-10 template with ASPNETCORE_URLS bound to PORT.

Last verification (September 21, 2026): ASP.NET Core pattern fixture deployed on Ample (dotnet publish -c Release -o out in the builder, then dotnet .dll on the dotnet-10 template with ASPNETCORE_URLS bound to PORT); for this guide: the app built and started with the documented commands and answered on its public HTTPS URL.

Before you deploy

You need

An ASP.NET Core project (dotnet publish -c Release -o out in the builder, then dotnet .dll on the dotnet-10 template with ASPNETCORE_URLS bound to PORT)
An Ample account token with servers:write

Know the limits

Verified on the dotnet-10 template at s-1vcpu-1gb; other sizes and ASP.NET Core major versions are not verified.

Frequently asked questions

Do I need a Dockerfile to deploy ASP.NET Core?

No. Ample detects ASP.NET Core from the repository and builds it from source on the dotnet-10 template. Dockerfile build steps are not run.

How do I add a database to a ASP.NET Core app?

Leave DATABASE_URL unset and deploy: when the code needs Postgres, MySQL, Redis or MongoDB, Ample creates a managed database and passes its connection string to the app. See Connect Postgres for ASP.NET Core.

What does it cost to host a ASP.NET Core app on Ample?

The Free plan runs 2 apps at once with no card and a hard monthly budget, so it never bills you. Larger needs are priced on volume; see pricing.

What if the deploy fails?

ample deploy waits until the app is live or failed. A failure returns who must act, a diagnosis and a suggested fix; read the logs with ample logs <deployment_id> --kind build. See Diagnose deployment failures for ASP.NET Core.

More for ASP.NET Core

ASP.NET Core How to serve ASP.NET Core public assets through a CDN on Ample ASP.NET Core How to set environment variables and secrets for an ASP.NET Core app on Ample ASP.NET Core How to connect an ASP.NET Core app to Postgres on Ample ASP.NET Core How to fix a failed ASP.NET Core deploy on Ample ASP.NET Core How to use S3-compatible storage from an ASP.NET Core app on Ample ASP.NET Core How to serve private files from an ASP.NET Core app on Ample ASP.NET Core How to run database migrations for an ASP.NET Core app on Ample