AI tool comparison
DOOM MCP vs Onform
Which one should you ship with? Here is the side-by-side panel verdict, pricing read, reviewer split, and community vote comparison.
Developer Tools
DOOM MCP
Play DOOM inline inside Claude or ChatGPT — full game, no browser needed
75%
Panel ship
—
Community
Free
Entry
Chris Nager built a fully playable DOOM that runs as an MCP (Model Context Protocol) app, rendering inline inside Claude and ChatGPT without a separate browser tab. The architecture uses two MCP tools — create_doom_session for inline-capable hosts and get_doom_launch_url as a browser fallback — combined with cloudflare/doom-wasm for the game runtime and a signed token system that maintains session state across both surfaces. The result is the same session whether you're playing inline or in a tab. The key technical challenge was avoiding iframe and CSP (Content Security Policy) issues. Rather than embedding a browser page inside the MCP iframe, the DOOM canvas runs directly inside the host's iframe — a subtle but critical distinction that resolved a class of rendering and input-handling bugs. The final implementation is intentionally stripped down: no save/load, no persistence adapters, just stable playable DOOM. Beyond the novelty, this project is a concrete demonstration that MCP apps are interactive surfaces, not just tool-calling JSON endpoints. The progressive enhancement pattern — same signed-token foundation serving both inline and browser modes — is a reusable architecture for any game or interactive experience that wants to live inside an AI assistant. Nager open-sourced the implementation and the blog post is a detailed technical breakdown.
Developer Tools
Onform
Build and manage forms from Claude using plain language
50%
Panel ship
—
Community
Free
Entry
Onform is an MCP-native form builder — the first form tool designed around MCP as its primary interface rather than a visual drag-and-drop UI. You describe the form you want to Claude or Cursor, and Onform's MCP server creates it, adds fields, sets validation rules, configures submissions, and returns a live URL. No dashboard, no templates, no GUI required. The platform handles all the backend infrastructure: submission storage, email notifications, spam filtering, and export to CSV or webhook. Each form has a public URL and an admin API. Updating a form is as simple as telling your agent what to change. Onform is built for developers who create forms as part of larger agent workflows — onboarding flows, data collection pipelines, feedback loops — where manually clicking through a SaaS dashboard breaks the automation chain. It supports multi-step forms, conditional logic, file uploads, and custom branding via MCP tool parameters.
Reviewer scorecard
“The signed-token progressive enhancement pattern is the part worth stealing. This is a clean reference architecture for MCP interactive apps, and DOOM just happens to be the demo case.”
“MCP-first is the right design philosophy for developer tools in 2026. Being able to spin up a form with submission handling and webhook delivery through a Claude conversation — without touching a UI — removes a surprisingly annoying friction point in agent-built workflows.”
“Fun proof of concept but let's be honest: if your AI assistant is hosting a DOOM session, something has gone wrong with your productivity. The MCP-as-interactive-surface insight is real, but this specific app has no utility.”
“Typeform, Tally, and even Google Forms are hard to beat on price and ecosystem. The MCP angle is clever but the addressable market is narrow — most teams who need forms don't have an agent workflow they need to fit it into. The moat depends entirely on MCP adoption velocity.”
“Every major compute platform's pivot point is when it runs DOOM. MCP running DOOM means MCP is a real platform now. The implications for interactive AI-embedded experiences are significant.”
“Every data collection touchpoint that can be managed by an agent will be. Onform is a small example of how MCP will quietly restructure the SaaS tool category — tools that can't be controlled programmatically via agents will lose to tools that can.”
“As someone who thinks about interactive experiences, the idea of game-like UI living inside an AI context is genuinely exciting. This is a crude ancestor of what interactive AI-native media could become.”
“For most creative use cases — reader surveys, client intake, waitlist signups — the visual feedback of building a form matters. Describing a form in text and trusting the agent to get the layout right sounds good but loses something in translation for design-sensitive contexts.”
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