Open source framework

Agentic Applications You Own

SaaS products lock you into rigid software you can't customize. Agent-native gives you full-featured apps you own, powered by an AI agent that can evolve them.

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Agents and UIs — fully connected

The agent and the UI are equal citizens of the same system. Every action works both ways — click it or ask for it.

Start with a full featured template

High-quality, vetted templates that replace tools you're paying for — except you own the code and can customize everything. Try them with example data before connecting your own sources.

Mail template screenshot

Mail

Replaces or augments Superhuman, Gmail

Superhuman-style email client with keyboard shortcuts, AI triage, and a fully customizable interface. Own your inbox workflow.

Calendar template screenshot

Calendar

Replaces or augments Google Calendar, Calendly

Manage events, sync with Google Calendar, and share a public booking page — all with an AI agent that handles scheduling.

Content template screenshot

Content

Replaces or augments Notion, Google Docs

Write and organize content with an agent that knows your brand, connects to your CMS, and follows your publishing workflow.

Slides template screenshot

Slides

Replaces or augments Google Slides, Pitch

Generate and edit React-based presentations via prompt or point-and-click. Describe what you want, refine as you go.

Video template screenshot

Video

Replaces or augments video editing

Create and edit Remotion video compositions with agent assistance — from storyboard to render, all in code you own.

Analytics template screenshot

Analytics

Replaces or augments Amplitude, Mixpanel

Connect any data source, prompt for any chart. Build reusable dashboards — not throwaway Q&A. No SQL required.

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The best of both worlds

SaaS tools are rigid and bolting AI on as an afterthought. Raw AI agents are powerful but have no UI. Agent-native apps combine both.

SaaS ToolsRaw AI AgentsInternal ToolsAgent-Native
UIPolished but rigidNoneMonths to buildFull UI, fork & go
AIBolted onPowerful, no guardrailsDisconnectedAgent-first, integrated
CustomizationCan'tPrompt-onlyFull but slowAgent modifies the app
OwnershipRentedN/AYours but costlyYou own the code
Non-dev friendlyYesNoRarelyGuided UI + agent

Run anywhere

Agent-native apps run inside a harness — a host that provides the AI agent alongside your app UI. Run locally with open-source CLI tools, or in the cloud with Builder.io.

CLI Harness

  • Runs locally on your machine
  • Use Claude Code, Codex, Gemini CLI, or OpenCode
  • Full permissions, full control
  • Free and open source
  • Great for local use
Builder.io Cloud Harness
  • Runs in the cloud
  • Real-time multiplayer collaboration
  • Visual editing, roles and permissions
  • Great for team use

Your app code is identical regardless of harness.

Launch in minutes

One command to fork a template and start building locally.

# Fork a template and start building
npx @agent-native/core create my-app --template mail
cd my-app
pnpm install
pnpm dev

Software you own, built for the agentic era

Stop renting rigid SaaS. Fork a template, customize it to your exact workflow, and let the agent keep evolving it. Open source. Forkable. Yours.

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