Flato Design MCP Server

Flato Design MCP

Flato is the native canvas runtime for AI design.

Flato gives AI agents a live, editable visual canvas for design work. Through MCP, agents can create, inspect, revise, export, and QA Flato projects while users keep full access to the browser editor.

Flato Design MCP connects Codex, Claude Code, Cursor, and other MCP-capable agents to that native canvas.

https://api.flato.ai/api/mcp/editor

This repository is the official distribution package for setup docs, the base guide skill, Codex plugin packaging, examples, and registry/review metadata. It does not contain the Flato MCP server source code.

Positioning

Flato is the native canvas runtime for AI design, not a one-shot image generator or a static HTML deck generator. The MCP workflow is built around editable pages, structured blocks, fresh design context, explicit page and block ids, live editor handoff, and visual QA.

Use this package when you want an AI agent to operate Flato's editable visual canvas safely through MCP.

What's Included

• skills/flato-design-mcp-guide: installable base guide skill for agents.
• plugins/flato-design-mcp-codex: Codex plugin package with MCP config and the guide skill.
• .agents/plugins/marketplace.json: Codex marketplace descriptor for this repo.
• docs/: setup, OAuth, permissions, and troubleshooting notes.
• registry/: MCP registry and platform review metadata drafts.
• examples/prompts/: first prompts for testing the integration.

Codex Install

Codex can install this repo as a plugin marketplace:

codex plugin marketplace add sologovision/flato-design-mcp --ref main
codex plugin add flato-design-mcp-codex@flato-design-mcp
codex mcp login flato-editor

Then open a new Codex conversation and verify:

Use Flato Design MCP. Call flato_whoami first and report the result. Do not create, edit, or write any project.

See Codex setup.

Claude Code Install

Add the hosted Flato MCP server:

claude mcp add --transport http flato-editor https://api.flato.ai/api/mcp/editor

Then use the guide skill in skills/flato-design-mcp-guide.

See Claude Code setup.

Cursor And Other MCP Clients

Use the hosted MCP server URL:

https://api.flato.ai/api/mcp/editor

Then follow the workflow in skills/flato-design-mcp-guide/SKILL.md.

See Cursor setup.

OAuth

Flato Design MCP uses browser OAuth. If needed, Flato asks you to sign in or create an account before authorization.

Do not paste Flato passwords, bearer tokens, refresh tokens, or local OAuth cache contents into an agent conversation.

See Authentication.

Account And Subscription

A Flato account is required for OAuth. A paid Flato subscription is not required to install, connect, or start using Flato Design MCP.

Some features, exports, higher usage, team/workspace capabilities, or paid image generation and editing may still depend on the authenticated user's Flato plan or credits. Agents should report plan or credit errors from MCP instead of asking users to subscribe in advance.

First Agent Workflow

After connecting Flato MCP, an agent should:

1. Call flato_whoami.
2. Create or select a project with flato_create_project, flato_use_project, or flato_use_share_link.
3. Open the live Flato editor when requested.
4. Poll flato_get_project_status until canWrite=true.
5. Read flato://canvas/fundamentals-v1, or call flato_get_canvas_fundamentals if resource reading is unavailable.
6. Call flato_get_design_context before any write.
7. Use concrete page and block ids returned by fresh context reads.
8. Inspect mcpFeedback after writes.
9. Export and visually QA important results.

Interactions

Page-level interactions are authored through interactiveScript on flato_create_pages and flato_update_pages. Agents should rely on current MCP tool schemas and flato://canvas/fundamentals-v1 for the full interaction contract instead of copying static schema fragments from this repo.

Supported inline interaction events include click/input/change and desktop hover/mouse events such as onclick, onmouseover, onmouseout, onmouseenter, and onmouseleave. Hover is useful for desktop presentations; include click/tap behavior or a visible fallback when mobile touch users matter.

Verified Smoke Test

The v0.1.3 Codex plugin package uses the full guide skill and the current hosted Flato MCP contract.

The Codex install path has been verified with:

codex plugin marketplace add sologovision/flato-design-mcp --ref main
codex plugin add flato-design-mcp-codex@flato-design-mcp
codex mcp login flato-editor

An independent Codex CLI session successfully called flato_whoami through the installed flato-editor MCP server without creating or editing any Flato project.

Screenshots

GitHub release

Codex plugin install

Read-only MCP smoke test

Editable presentation canvas

Canvas editing and content tools

AI-assisted canvas edits

Codex working with the live canvas

Release Assets

GitHub releases attach:

• flato-design-mcp-guide-vX.Y.Z.zip: installable base guide skill.
• flato-design-mcp-codex-vX.Y.Z.zip: Codex plugin package.

Safety Principles

• Do not ask users to paste passwords, bearer tokens, or local OAuth tokens.
• Do not inspect local OAuth or token stores.
• Do not guess pageId or blockId.
• Do not claim generated assets are placed until a design write uses the returned asset URL.
• Use backups before broad or risky edits.

Related Flato Docs

• User docs: https://www.flato.ai/docs/mcp
• Agent-readable guide: https://www.flato.ai/docs/mcp.md
• Flato app: https://www.flato.ai
• Privacy: https://www.flato.ai/docs/privacy-policy
• Terms: https://www.flato.ai/docs/terms-of-use

Support And Security

• Use GitHub Issues for setup and documentation problems.
• See SECURITY.md for security reporting guidance.
• Do not include tokens, passwords, or private project content in public issues.

Roadmap

This is the base package. Scenario-specific skills such as flato-presentation-skill should build on this guide instead of duplicating the connection, OAuth, targeting, and safety workflow.