# Assembly Studio

> Assembly Studio is an AI-powered app builder for professional service firms that lets you describe, build, and publish client-facing and internal apps in plain language within a unified platform.

Assembly Studio is an AI-powered platform that lets professional service firms build and publish real, production-ready apps by describing what they want in plain English. It sits on top of Assembly's existing CRM and client experience infrastructure, so every app ships with authentication, branding, permissions, and hosting already handled. The platform targets accounting firms, agencies, and similar client-facing businesses that need custom workflows without engineering resources.

## What It Is

Assembly Studio is a no-code, AI-driven app builder embedded inside a broader client operations platform. Unlike standalone AI prototyping tools, it generates apps that live inside a branded client portal on your own domain, backed by platform-level security and a shared CRM. The builder works through a conversational flow: describe your idea, answer a few product questions, approve a plan, and the app is published — then keep refining it by chat.

## How the Build Workflow Works

The four-step process is designed to go from idea to live app without writing code:

- **Describe** — type what you want in plain language (e.g., "build a time tracking app to log hours across clients and projects")
- **Plan** — the builder asks clarifying questions and shows a plan you can approve or edit before any credits are consumed
- **Publish** — the app goes live inside your branded client experience immediately
- **Iterate** — continue refining by conversation; apps are never frozen at publish

Describing an idea, answering questions, and reviewing the plan are all free. Build credits are only consumed once you approve and building starts.

## Platform Primitives That Differentiate It

Assembly Studio's core argument is that generation is the easy part — the hard part is making apps production-ready. The platform provides several built-in primitives that generated apps inherit automatically:

- **Integrated CRM** — contacts and companies live once in the platform; every app reads and writes to the same shared data
- **Branded client experience** — every workspace gets a client portal on your own domain; apps appear in the sidebar alongside each other
- **Platform authentication** — clients sign in with magic links or Google, with MFA available; authentication is never AI-generated
- **Roles and permissions** — a structural boundary separates what your team sees from what clients see
- **Integrated payments, notifications, and workflows** — included at the platform level, not rebuilt per app

## Target Audience and Use Cases

Assembly Studio is explicitly built for professional service firms — accounting practices, marketing agencies, consultancies, and similar businesses. The platform is described as strongest for authenticated, client-facing experiences rather than public-facing marketing sites. Common app types include:

- Onboarding wizards and document collectors
- Project trackers and time trackers
- Client AI assistants that answer questions from firm documents
- Proposal builders with e-sign
- Approval workflows and client help desks
- Internal communications and team tools

The platform also ships with 30+ pre-made app templates covering common workflows and specific industries.

## API, MCP, and Integration Support

Apps can connect to third-party services: when a build requires an external tool, the builder prompts for authentication or an API key and wires it in. An API and MCP connector is available on paid plans, enabling integration with external systems and AI agent frameworks. The platform also exposes an API reference in its documentation.

## Current Status and Scale Signals

Assembly Studio is actively live with a free-forever plan requiring no credit card. The homepage (vendor-published) reports metrics including 10,000+ businesses powered, 100,000+ apps created, 250K+ clients managed, and $10M+ in payments processed. A customer story from Advertai Marketing (published on the site) states the firm built apps within five weeks that the customer says "I doubt we could have done within five to ten years before," with 200+ clients using the applications.

## Features
- AI-powered app builder via plain-language description
- Conversational app iteration after publish
- 30+ pre-made app templates
- Branded client portal on custom domain
- Integrated CRM with contacts and companies
- Platform-level authentication (magic links, Google, MFA)
- Roles and permissions with client/team boundary
- Integrated billing and payments
- Automation builder
- AI model selection
- Client AI assistants from firm documents
- API and MCP connector
- Custom domains
- Audit log
- HIPAA compliance (BAA)
- Enforced MFA
- Messaging and team inbox
- Document collection and e-sign proposals

## Integrations
Google (OAuth sign-in), Third-party APIs via API key, MCP-compatible tools, Assembly CRM

## Platforms
WEB, API

## Pricing
Freemium — Free tier available with paid upgrades

## Links
- Website: https://studio.assembly.com
- Documentation: https://assembly.com/docs
- EveryDev.ai: https://www.everydev.ai/tools/assembly-studio