[ Developer Platform ]
Extend Collabase without touching the core.
Apps feel like Collabase, run in isolation and work on every instance, in the cloud and self-hosted. The MCP server is available today, the App SDK follows in Q4 2026.
What is the Collabase Developer Platform?
The Collabase Developer Platform is how you extend Collabase without touching the core. It consists of four building blocks: the MCP server for AI agents, the App SDK for your own apps, the CollaKit design system, and AgentKit, which lets coding agents build Collabase apps by the same rules.
MCP server
AI agents work with your Collabase data through OAuth.
App SDK
Your own apps in TypeScript and React, running inside Collabase.
CollaKit
The design system with foundations, components and tokens.
AgentKit
Rules, skills and MCP access so agents build Collabase apps the right way.
AI agents work with your data. Through the MCP server, Claude, ChatGPT, Cursor and other clients access Collabase via OAuth.
OAuth with user permissions
The agent signs in through OAuth and works with the permissions of the person who connects it.
49 tools
49 tools an agent uses to work with your Collabase data.
Any MCP client
Claude, ChatGPT, Cursor and any other client that speaks the Model Context Protocol.
Your own apps that feel like Collabase. With the App SDK you write apps in TypeScript and React. They run in isolation and on every instance.
App window
Its own app window in the drawer, with a sidebar and its own pages.
Work item panel
Its own panel on the work item, just like tests or meetings.
Gadgets
Gadgets for dashboards and cockpits.
Automation
Your own triggers and actions in the automation builder.
Events
React to events in Collabase, for example when a work item is created.
Data storage
Collections with queries, key value with expiry, and custom values on work items, pages and projects.
«Self-hosted software should not have to compromise on features, quality or design.»
Secure because isolated. An app runs in isolation, and admins decide what it may do.
[ 01 ]Isolated code
Backend code runs in V8 isolates with time and memory limits.
[ 02 ]Isolated interfaces
Interfaces run sandboxed and are rendered with real Collabase components. Dark mode, themes, languages and accessibility come from Collabase.
[ 03 ]Permissions
An app can never do more than the person using it. In the background it acts as its own app user, and only in spaces where it is enabled.
[ 04 ]Control for admins
Admins confirm permissions, hosts and data flows to AI, approve apps per group and enable them per space. Signatures and logs can be inspected, and faulty apps lock themselves automatically.
[ 05 ]Data stays in the instance
Whatever an app stores stays in your instance, backups included.
One command to a running app. The CLI scaffolds the app, starts a local Collabase instance and builds the package for your admin.
The manifest is generated from your code. No app store needed: the admin uploads the package to your instance.
The SDK is typed. Mistakes show up while you write.
# creates a working app
$ npm create collabase-app
# starts a local instance, changes reload instantly
$ npm run dev
# builds the package an admin uploads
$ npm run packageBuilt alike, designed alike. CollaKit gives your apps the look of Collabase, AgentKit gives coding agents the rules for it.
CollaKit
Foundations for color, iconography, typography and AI patterns, plus components and tokens. The Collabase core uses the same token source, so core, apps and website never drift apart.
More on CollaKitAgentKit
Claude Code and other agents build Collabase apps with the right rules, skills and MCP access. With a Claude Code plugin, AGENTS.md and adapters for Codex, Cursor and ChatGPT.
More on AgentKitPublic on GitHub. The repositories live in the Collabase organization. The npm packages ship with the App SDK.
Repositories
- Collabase/app-sdk
App contract, SDK, CLI and create-collabase-app
- Collabase/collakit
Components, icons, tokens and foundations
- Collabase/agentKit
Claude Code plugin, skills, AGENTS.md and adapters for Codex, Cursor and ChatGPT
- Collabase/app-examples
Example apps and template
npm packages
Coming Q4 2026- @getcollabase/app-sdk
Pages, server functions, storage, events and automation
- @getcollabase/app-cli
dev, build, package, sign and logs
- @getcollabase/app-contract
Manifest and protocol schemas
- @getcollabase/collakit
Components, icons, design tokens and foundations
- create-collabase-app
Scaffold for a new app
Not published yet. The packages ship from Q4 2026.
Questions about the Developer Platform
What is the Collabase Developer Platform?
The Developer Platform is how you extend Collabase without touching the core. It includes the MCP server, the App SDK, the CollaKit design system and AgentKit for coding agents.
What is available today?
The MCP server is available today. App SDK, CollaKit and AgentKit are coming in Q4 2026.
Do apps run on a self-hosted instance?
Yes. Apps built with the App SDK run on every Collabase instance, in the cloud and self-hosted. Whatever an app stores stays in the instance, backups included. The App SDK is coming in Q4 2026.
Is an app store required?
No. The CLI builds a package that an admin uploads to their own instance. The manifest is generated from the code.
Where is the code?
Public on GitHub in the Collabase organization: app-sdk, collakit, agentKit and app-examples. The npm packages under @getcollabase are coming in Q4 2026.