REST · Swagger · gRPC ready

Web API
hosting for .NET devs.

Host ASP.NET Core Web APIs with full Swagger / OpenAPI support, JWT authentication, CORS and gRPC. Deploy from Visual Studio in one click and you’re live.

Web API REST & gRPC
Runtime
.NET 8 – 11 · minimal API or controllers
Protocols
REST · gRPC over HTTP/2
Docs
Swagger / OpenAPI
Auth
JWT · OAuth · CORS
Config
environment variables per site
Database
MSSQL 2025 · MySQL
Why our Web API hosting

Web API hosting with everything your API needs

From local dev to production traffic — HTTPS, persistent processes, MSSQL 2025, environment variables and direct deploy from Visual Studio.

Swagger / OpenAPI ready

Full Swagger UI support out of the box. Your API documentation is live the moment you deploy — no extra config required.

JWT, OAuth, CORS

Full support for JWT bearer tokens, OAuth 2.0 flows, and configurable CORS policies. Build secure APIs with confidence.

gRPC over HTTP/2

gRPC services run natively with HTTP/2 end-to-end. Stream binary data, server push, and bidirectional channels — no proxy quirks.

Native MSSQL 2025 backend

Connect Entity Framework Core, Dapper or raw ADO.NET to a real SQL Server 2025. SSMS access included — no abstraction layers.

Environment variables

Store secrets, connection strings and per-env config outside source code using environment variables — configurable from the Control Panel.

HTTPS by default

Free Let’s Encrypt SSL certificates with auto-renewal. HTTP/3, TLS 1.3 and HSTS — secure-by-default out of the box.

FAQ

Questions about Web API hosting

Can I host a Web API for free?

Yes. The Free plan gives you one website with 5 GB of storage and 256 MB of dedicated RAM on our free subdomains (runasp.net or tryasp.net), plus one database with 1 GB of storage. No credit card is required. Note that the Free plan cannot send e-mails.

How do I store connection strings and secrets?

Use environment variables, which are set per website in the Control Panel and applied on the next application start. If you deploy from GitHub, you can also list files such as appsettings.Production.json as protected files so that a deploy never overwrites them.

Can I call my API on a schedule?

Yes, on Premium. A planned task sends an HTTP GET request to a URL of your website on a cron schedule. The minimum interval is 1 minute and a single run can take at most 5 minutes.

Does HTTPS work for my API?

HTTPS with Let’s Encrypt is included with Premium: certificates are issued per domain and renewed automatically, and you can force a redirect from HTTP to HTTPS. On the Free plan you can ask our support for manual HTTPS activation.

Can my API use a SQL Server database?

Yes. Websites hosted with us reach the database through an internal hostname, and the ready-made connection string is shown in the Control Panel. For your own tools you can enable a TLS-encrypted remote endpoint.

Which ASP.NET Core hosting model should I use?

InProcess is the recommended hosting model. OutOfProcess is supported with the DLL runtime.

Ready to ship your Web API?

Get started in seconds with our free tier — no credit card required, no hidden fees. Deploy from Visual Studio in one click.