ChaiBuilder is unclaimed —

ChaiBuilder

The website builder for agents and humans. Owned by you.·chaibuilder.com

ChaiBuilder is a low-code, self-hosted visual website builder for React and Next.js that installs as npm packages into an application you own. Editors build pages visually, developers extend the builder with custom blocks and panels, and AI agents such as Claude, Cursor or VS Code edit and publish pages through a built-in MCP server. It ships with an open-source core (chaicore) and a paid Platform license (chaipro) that adds multi-tenancy, roles, AI assistant, the MCP server, multilingual support and more, with an optional Payload CMS for structured content.

What it's for

giving every member of a platform their own website generated from the platform's datarunning multi-tenant white-label website builders under an agency's or platform's own brandembedding a website builder inside an existing applicationletting AI agents draft page edits, translations and SEO for review and publishingbuilding and self-hosting individual client or personal sites with the open-source core

Features 19

AI assistant inside the builder, on a provider you choose (Vercel AI Gateway, OpenRouter, or custom)
Built-in MCP server with 33 tools for pages, blocks, SEO, translations, publishing, revisions, images and redirects
Conditional visibility of blocks based on data
Custom blocks, panels and MCP tools via code extension
Data binding of blocks to CMS and application data
Design tokens for consistent, reusable styling
Instant publish with no rebuild (pages revalidate on publish)
Media manager with asset library, uploads, stock photo search and image editor
Multi-tenancy: one deployment serves many tenants' sites
Multi-user editing with page locking
Multilingual sites with AI-assisted translation
Optional Payload CMS integration for structured content, or bring your own CMS
Redirect management
Revisions and restore (page version history with JSON diff)
Role-based access control (RBAC) and permissions
Site-wide theming (colors, fonts, border radius)
SQLite or Postgres database support
Visual drag-and-drop page builder
White-label branding with no ChaiBuilder branding shown

At a glance

free tierfree trialopen sourceself-hostableAPI

TypePlugin / add-on

DeploymentSelf-hosted

PlatformsWeb

Fordevelopers, small teams, agencies, platforms and vertical SaaS running many sites, enterprises

Integrations

Vercel AI GatewayOpenRouterClaudeVS CodeSanityCursorContentfulPayload CMS

Resources

Docs

Pricing

The open-source core (chaicore) is free under BSD-3-Clause. The Platform license (chaipro) has no published rate card; it is quoted on a 30-minute demo call as one yearly fee for the whole platform, scaled to the customer, with no per-site fees, no per-seat pricing, and no AI credits. Monthly billing of the yearly license can be arranged as a payment term. A 30-day free trial of chaipro is available with no credit card and no email.

Open source (chaicore)Free

BSD-3-Clause licensed, for individuals, teams and single agencies building one or a few sites.

Basic Next.js website builder: visual builder, SQLite page storage and rendering only. Roles and permissions, revisions/multilingual/redirects/media manager, AI assistant, MCP server, multi-tenancy and custom branding are not included.

Platform license (chaipro)Quote

Delivered as a White Label Solution (multi-tenant, managed or self-hosted) or a Custom Integration (embedded in your app). Billed yearly; monthly billing available as a payment term, not a different price. No per-site fees, no per-seat pricing, no AI credits, no feature tiers. Build services are billed separately, hourly or at a fixed price per scope.

One yearly license covers the whole platform, unlimited sites, no per-site fees; price is quoted to scale on a demo call rather than published.