What's new v10.1 - 15 languages, AI Chat, Schemas & PDF

Simplicity at Speed

One framework to power them all. Write your HTTP APIs once and get end-to-end typed integrations for 15 languages, instant Admin UIs, queryable data APIs and safe AI capabilities - all generated from the same typed Request DTOs.

Get ServiceStack Why ServiceStack?

15: Typed client languages
12+: Built-in Admin UIs
.NET | Framework: Runs everywhere .NET does

.NET .NET Framework

Latest from the blog

Release announcements, deep dives and tutorials

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Typed ServiceStack APIs for Go, Rust, Ruby and Zig

Add ServiceStack Reference now brings end-to-end typed APIs to 15 of the world's most popular programming languages-from websites and mobile apps to cloud services and systems software.

August 13, 2026

Next.js React Server Components - Secure Design

How the Next.js RSC template architecture protects against React Server Components vulnerabilities through process isolation and defense-in-depth security

December 15, 2025

Replacing Legacy UIs in an AI-First world

Rewriting legacy UIs on modern AI-First stacks are now cheaper and faster than traditional development.

December 7, 2025

Everything from one API contract

Declare your APIs once, the rest is Free.

Your typed Request DTOs are the single source of truth - every client, UI, schema and AI capability below is generated from them, and stays in sync automatically.

Typed APIs in 15 Languages

Native DTOs and a feature-rich Service Client for C#, TypeScript, Python, Go, Rust, Ruby, Zig, Swift, Kotlin, Dart and more - no hand-written SDKs.

Add ServiceStack Reference

AutoQuery

One line of C# gives you a fully queryable, paged, filterable and authorized Query & CRUD API over your RDBMS - then renders its own admin UI.

Explore AutoQuery

Built-in UIs

A suite of Admin UIs, API Explorer and Locode in every App - users, roles, API keys, logging, profiling, background jobs, analytics and database browsing.

See the Built-in UIs

AI Chat & API Tools

A complete AI application inside your App, with your existing users - and your own APIs safely exposed as AI capabilities behind human approval.

Discover AI Chat

Project Templates

Production-ready starting points for React, Vue, Blazor, Angular, Razor Pages, MVC and Flutter - each with Identity Auth and AutoQuery pre-configured.

Browse templates

PDF Studio

Design documents with AI and a live preview, then render them deterministically in production from an ordinary ServiceStack API - no LLM in the hot path.

See PDF Studio

Start here

Start from a template, not a blank page

Every template ships on .NET 10 with Identity Auth, AutoQuery, the Built-in UIs and a Docker deployment pipeline already wired up - so your first commit can ship to a real server.

$npx create-net ls

Explore Project Templates Customize & Download

React Vue Blazor Angular MVC See all

Write once, integrate from anywhere

Also available over gRPC

The same Services, on HTTP/2

Your existing typed Services are available from ASP.NET's gRPC endpoints without rewriting them — giving you high-performance HTTP/2 APIs and generated gRPC clients alongside your native HTTP integrations.

gRPC Docs Quick Start

Generated gRPC clients for

Python

Java

Swift

Dart

Flutter

Android

PHP

Ruby

New in v10.1

Your existing APIs become safe AI capabilities

No second AI backend. No parallel schema. No new identity silo. AI Chat runs inside your App, acting as the signed-in user, with an editable approval form in front of anything consequential.

AI Chat v4

Register ChatFeature and your users get a complete AI application at /chat - every major model provider behind one selector, documents, voice, images, RAG and per-user projects. All within your App boundary.

Explore AI Chat Read the docs

API Tools & MCP

Three stable tools - search, describe and call - give Models progressive access to your live API surface, executed as the current user. Expose the same tools to any MCP-compatible Assistant from a built-in MCP Server.

API Tools MCP Server

API Schemas

Every API gets a portable JSON Schema contract that renders its own executable UI at /schema - and any AI approval form.

Learn more

AutoQuery Schemas

Open /auto and every AutoQuery data model already has a complete, authorized CRUD App - assembled at runtime.

Learn more

PDF Studio

Design documents with a vision model and a live preview, publish them as validated artifacts, then render deterministically in production.

Learn more

/chat

A complete AI Assistant inside your App, using your existing users

Why ServiceStack?

Simple, versatile, evolvable, resilient high-performance message-based APIs

Maximize Value and Reach of System APIs: The same APIs can be consumed from HTTP in a myriad of data formats, via popular MQ Servers and over gRPC - without sacrificing any native HTTP integrations.
Ultimate Developer Productivity: Native end-to-end typed integrations for 15 of the most popular languages used to build Web, Mobile & Desktop Apps, added and updated from within your favorite IDE.
Remote Services Best Practices: A message-based design embracing the Remote Facade, DTO and Service Gateway patterns - the only Services framework to reuse API contracts for typed integrations in .NET Apps without code-gen.
Benefits of message-based design: Unlike RPC, messages can be evolved, intercepted, routed & serialized, letting front and back-end developers collaborate on an agreed high-level API design free of implementation concerns.
Consistent & Simplified Development Model: Capturing an entire API boundary into impl-free Service Contracts means every supported language need only generate declarative DTOs - encapsulating richer metadata than other code-gen solutions.
Preserve Investments: ServiceStack has promoted the same remote service best-practices for over a decade, outliving several abandoned .NET Web Service frameworks and the investments that failed along with them.

Why ServiceStack All Features Documentation

Watch & Learn

Short, focused walkthroughs covering everything from your first API to deployments.

ServiceStack APIs

Effortlessly create feature-rich APIs and Web Apps

Intro to ServiceStack

July 6, 2021 apis

Build a Bookings API with Auto Admin UI in minutes

August 16, 2022 razor-pages mvc

Simple Auth Story with API Keys for .NET 8 Microservices

June 18, 2024 auth admin

File Upload services the Easy way

August 16, 2022 autoquery files

Managed File Uploads

June 7, 2022 files blazor

Stream processing of data with JSON Lines

August 15, 2023 serialization jsonl

Post Command line HTTP API tools

August 23, 2021 inspect tool

Deploy anywhere

From your first commit to production

Templates ship with GitHub Actions workflows and a Docker Compose deployment over SSH already wired up — so there's no gap between building your App and running it.

Docker Compose over SSH

Deploy to any vanilla Linux host for a few dollars a month. No orchestrator, no lock-in.

Read the guide

GitHub Actions

Mix in a ready-made workflow to build, test and release your App on every push.

Action templates

SQLite + Litestream

Run on a single node with continuous streaming replication to object storage.

Explore Litestream

Kamal

Zero-downtime container deploys to any host you control, with rollbacks built in.

Deploy with Kamal

Or your cloud of choice AWS

Azure Digital Ocean Bare metal

Feature Rich Ecosystem

Batteries included libraries with consistent focus of simple & elegant design.

ServiceStack Framework

Thoughtfully architected, obscenely fast, thoroughly enjoyable web services for all

ServiceStack.Redis

.NET's leading C# Client

ServiceStack.OrmLite

Code-first, fast, lightweight ORM

#Script

Simple, Fun, Live Scripting of .NET

ServiceStack.Aws

Full featured support for AWS managed services.

Add ServiceStack Reference

Web, Mobile & Desktop Typed Clients

ServiceStack.Azure

Full featured support for Azure managed services