MCP Apps
Official MCP extension that lets tools return interactive HTML interfaces rendered in a sandboxed iframe inside the chat.
Reference by Model Context Protocol project
Chalk Labs
Need help deploying MCP Apps?
Chalk Labs sets up agents like this inside real teams: connected to your tools, tested on your data, with a human in the loop where it matters.
About
Use cases: frontend-development
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
About the protocol
- Current version
- 2026-01-26github.com
- Maintainer
- Model Context Protocol projectblog.modelcontextprotocol.io
- Launched
- 2026-01-26blog.modelcontextprotocol.io
- Builds on patterns from MCP-UI and the OpenAI Apps SDK. blog.modelcontextprotocol.io
- Supported by Claude, VS Code GitHub Copilot, Microsoft 365 Copilot, Goose and Postman, among others. modelcontextprotocol.io
Signals
- Stars
- 3,007
- Forks
- 419
- Open issues
- 132
- Last commit
- Oct 23, 2026 (7 days ago)
- Last release
- Sep 25, 2026 (1 month ago)
From GitHub (fetched Oct 24, 2026).
Details
- Version
- 2026-01-26
- License
- License unknown
- Repository
- github.com/modelcontextprotocol/ext-apps
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
Done for you
Rather not set it up yourself?
Chalk Labs scopes, builds and runs agents for your team: the task audit, the eval harness, the integrations and the weekly ops report. Fixed scope, priced before we start.
See how we build AI agents →Read the case studies
Chalk Labs is a two-founder AI and growth studio. We build AI agents, CRMs and MVPs for Web3 and AI companies, and have shipped 50+ product and token launches.
- launches shipped
- 50+
- launches shipped
- media placements
- 500+
- media placements
- founders on every account
- 2
- founders on every account
Press we've placed: Forbes · CoinDesk · Decrypt · Cointelegraph · The Block
Rahil Jain, Co-founder, Chalk Labs. Ex-Goldman Sachs engineer. You talk to the person who builds it.
Get MCP Apps running in your business
Tell us what you want to automate. A founder replies within one working day with a plan, not a pitch deck.
Cite this page
MCP Apps. Agent Mart. https://agentmart.dev/reference/mcp-apps (last updated 2026-10-24)