---
title: "MCP Apps"
canonical: "https://canmyagentuse.com/features/mcp-apps"
contentKind: "feature"
locale: "en"
description: "Render an interactive interface returned by an MCP server, with current-track evidence for supported hosts."
llmSummary: "MCP Apps let tools return interactive interfaces that render inside a compatible MCP host. Selected current-track cells are sourced; all others remain unknown."
publishedAt: "2026-08-28T00:00:00.000Z"
updatedAt: "2026-08-28T00:00:00.000Z"
verifiedAt: "2026-08-28"
tags: ["interfaces","mcp"]
---

# MCP Apps

MCP Apps let tools return interactive interfaces that render inside a compatible MCP host. Selected current-track cells are sourced; all others remain unknown.

- HTML: https://canmyagentuse.com/features/mcp-apps
- JSON: https://canmyagentuse.com/api/v1/features/mcp-apps.json
- Markdown: https://canmyagentuse.com/features/mcp-apps.md

Terminology basis: **MCP Apps 2026-01-26** — https://modelcontextprotocol.io/extensions/apps/specification.

## Current support at a glance

MCP Apps: 1 supported, 3 partial, 0 unsupported, 27 unreviewed across 31 cataloged products.

- Reviewed current products: 4 of 31
- Supported: 1
- Partial: 3
- Unsupported: 0
- Unreviewed: 27
- Not applicable: 0

Unknown or unreviewed means insufficient published evidence; it does not mean unsupported.

MCP Apps is the official Model Context Protocol extension for interactive interfaces returned by tools. A compatible host fetches a declared UI resource, renders it in a sandboxed frame, and mediates communication between the interface and MCP tools.

This row is narrower than ordinary MCP tool calling. A harness can support MCP tools while leaving this UI extension unknown. The first wave sources only hosts named by current product or protocol documentation.

## Catalog context

- Category: [interfaces](/categories/interfaces.md)
- Specification: [mcp-apps](/specs/mcp-apps.md) — revision 2026-01-26
- Aliases: MCP UI, interactive MCP apps
- Family: [Model Context Protocol](/features/mcp.md)
- Siblings: [MCP cancellation](/features/mcp-cancellation.md), [MCP client role](/features/mcp-client-role.md), [MCP elicitation](/features/mcp-elicitation.md), [MCP legacy HTTP and SSE](/features/mcp-legacy-sse.md), [MCP list-changed notifications](/features/mcp-list-changed.md), [MCP logging](/features/mcp-logging.md), [MCP OAuth authorization](/features/mcp-oauth.md), [MCP progress notifications](/features/mcp-progress.md), [MCP prompt-list notifications](/features/mcp-prompts-list-changed.md), [MCP prompts](/features/mcp-prompts.md), [MCP Registry metadata](/features/mcp-registry.md), [MCP resource subscriptions](/features/mcp-resource-subscriptions.md), [MCP resources](/features/mcp-resources.md), [MCP revision compatibility](/features/mcp-revision.md), [MCP roots](/features/mcp-roots.md), [MCP sampling](/features/mcp-sampling.md), [MCP server instructions](/features/mcp-server-instructions.md), [MCP server role](/features/mcp-server-role.md), [MCP stdio transport](/features/mcp-stdio.md), [MCP Streamable HTTP](/features/mcp-streamable-http.md), [MCP task listing](/features/mcp-task-listing.md), [MCP tasks](/features/mcp-tasks.md), [MCP tools](/features/mcp-tools.md)

## Compatibility assertions

Unknown means insufficient published evidence; it does not mean unsupported.

### ChatGPT (web)

- Harness: [ChatGPT](/harnesses/chatgpt-web.md)
- current: **Partial**
  - Target: hosted-observation — 2026-08-28 hosted documentation observation; observed 2026-08-28
  - Environment: hosted-default
  - Constraint (preview): developer mode and full MCP are beta
  - Constraint (plan): availability varies by ChatGPT plan
  - Constraint (policy): workspace role and administrator controls apply
  - Evidence: [OpenAI — Developer mode and MCP apps in ChatGPT](https://help.openai.com/en/articles/12584461-developer-mode-and-full-mcp-connectors-in-chatgpt) — documented; observed 2026-08-28
  - Evidence: [OpenAI — Build with the Apps SDK](https://help.openai.com/en/articles/12515353-build-with-the-apps-sdk) — documented; observed 2026-08-28
  - Qualification note 1: Evidence checked 2026-08-28: ChatGPT can run MCP-backed apps with interactive in-chat UI, but developer mode and full MCP availability are limited by plan, workspace role, and beta rollout.
- preview: **Unknown**

### Claude (web)

- Harness: [Claude](/harnesses/claude-web.md)
- current: **Partial**
  - Target: hosted-observation — 2026-08-28 hosted documentation observation; observed 2026-08-28
  - Environment: hosted-default
  - Constraint (plan): custom connectors require a paid plan
  - Constraint (preview): connector workflow is beta
  - Evidence: [Model Context Protocol — MCP Apps overview and client support](https://modelcontextprotocol.io/extensions/apps/overview) — listed; observed 2026-08-28
  - Evidence: [Anthropic — Custom connectors using remote MCP](https://support.anthropic.com/en/articles/11175166-about-custom-integrations-using-remote-mcp) — documented; observed 2026-08-28
  - Qualification note 2: Evidence checked 2026-08-28: the official MCP Apps client list names Claude, while Anthropic limits custom remote connectors to paid plans and currently labels them beta.
- preview: **Unknown**

### Gemini (web)

- Harness: [Gemini](/harnesses/gemini-web.md)
- current: **Unknown**
- preview: **Unknown**

### Copilot (web)

- Harness: [Copilot](/harnesses/copilot-web.md)
- current: **Unknown**
- preview: **Unknown**

### Grok (web)

- Harness: [Grok](/harnesses/grok-web.md)
- current: **Unknown**
- preview: **Unknown**

### Grok Bot (desktop)

- Harness: [Grok Bot](/harnesses/grok-bot-desktop.md)
- current: **Unknown**

### Perplexity (web)

- Harness: [Perplexity](/harnesses/perplexity-web.md)
- current: **Unknown**
- preview: **Unknown**

### Le Chat (web)

- Harness: [Le Chat](/harnesses/le-chat.md)
- current: **Unknown**
- preview: **Unknown**

### Devin (web)

- Harness: [Devin](/harnesses/devin-web.md)
- current: **Unknown**
- preview: **Unknown**

### Replit Agent (web)

- Harness: [Replit Agent](/harnesses/replit-agent.md)
- current: **Unknown**
- preview: **Unknown**

### ChatGPT (desktop)

- Harness: [ChatGPT](/harnesses/chatgpt-desktop.md)
- current: **Unknown**
- preview: **Unknown**

### Claude (desktop)

- Harness: [Claude](/harnesses/claude-desktop.md)
- current: **Partial**
  - Target: dated-documentation — current Claude Desktop documentation; observed 2026-08-28
  - Environment: local-default
  - Constraint (policy): connector and extension configuration applies
  - Evidence: [Model Context Protocol — MCP Apps overview and client support](https://modelcontextprotocol.io/extensions/apps/overview) — listed; observed 2026-08-28
  - Qualification note 3: Evidence checked 2026-08-28: the official MCP Apps client list names Claude Desktop as a host; connector and extension availability still depends on configuration and administrator policy.
- preview: **Unknown**

### Cursor (desktop)

- Harness: [Cursor](/harnesses/cursor.md)
- current: **Unknown**
- preview: **Unknown**

### OpenWork Desktop (desktop)

- Harness: [OpenWork Desktop](/harnesses/openwork-desktop.md)
- current: **Unknown**

### Copilot Chat (desktop)

- Harness: [Copilot Chat](/harnesses/vscode-copilot.md)
- current: **Supported**
  - Target: dated-documentation — current VS Code documentation; observed 2026-08-28
  - Environment: local-default
  - Evidence: [Visual Studio Code — MCP developer guide](https://code.visualstudio.com/api/extension-guides/ai/mcp) — documented; observed 2026-08-28
  - Qualification note 4: Evidence checked 2026-08-28: the VS Code MCP developer guide lists MCP Apps among the protocol features implemented for GitHub Copilot agent mode.
- preview: **Unknown**

### Chrome WebMCP origin trial (desktop)

- Harness: [Chrome WebMCP origin trial](/harnesses/chrome-webmcp-preview.md)
- current: **Unknown**

### Windsurf (desktop)

- Harness: [Windsurf](/harnesses/windsurf.md)
- current: **Unknown**
- preview: **Unknown**

### Zed Agent (desktop)

- Harness: [Zed Agent](/harnesses/zed-agent.md)
- current: **Unknown**
- preview: **Unknown**

### Continue (desktop)

- Harness: [Continue](/harnesses/continue.md)
- current: **Unknown**
- preview: **Unknown**

### Cline (desktop)

- Harness: [Cline](/harnesses/cline.md)
- current: **Unknown**
- preview: **Unknown**

### JetBrains AI (desktop)

- Harness: [JetBrains AI](/harnesses/jetbrains-ai.md)
- current: **Unknown**
- preview: **Unknown**

### Warp (desktop)

- Harness: [Warp](/harnesses/warp.md)
- current: **Unknown**
- preview: **Unknown**

### Claude CLI (cli)

- Harness: [Claude CLI](/harnesses/claude-cli.md)
- current: **Unknown**
- preview: **Unknown**

### ChatGPT CLI (cli)

- Harness: [ChatGPT CLI](/harnesses/chatgpt-cli.md)
- current: **Unknown**
- preview: **Unknown**

### Codex CLI (cli)

- Harness: [Codex CLI](/harnesses/codex-cli.md)
- current: **Unknown**
- preview: **Unknown**

### OpenCode (cli)

- Harness: [OpenCode](/harnesses/opencode.md)
- current: **Unknown**
- preview: **Unknown**

### Gemini CLI (cli)

- Harness: [Gemini CLI](/harnesses/gemini-cli.md)
- current: **Unknown**
- preview: **Unknown**

### Aider (cli)

- Harness: [Aider](/harnesses/aider.md)
- current: **Unknown**
- preview: **Unknown**

### Goose (cli)

- Harness: [Goose](/harnesses/goose.md)
- current: **Unknown**
- preview: **Unknown**

### Copilot CLI (cli)

- Harness: [Copilot CLI](/harnesses/copilot-cli.md)
- current: **Unknown**
- preview: **Unknown**

### Amp (cli)

- Harness: [Amp](/harnesses/amp-cli.md)
- current: **Unknown**
- preview: **Unknown**