FlowZap MCP Server

Create workflow, sequence, and architecture diagrams using AI assistants like Claude, Cursor, Windsurf, and 8 other MCP-compatible tools.

FlowZap is a visual workflow diagramming tool with a text-based DSL called FlowZap Code. This MCP server lets AI assistants create diagrams for you.

What is FlowZap?

FlowZap turns text prompts into triple-view diagrams (Workflow, Sequence & Architecture) using FlowZap Code DSL. It is NOT Mermaid, NOT PlantUML - it is a unique domain-specific language designed for simplicity and AI generation.

Key Facts:

• Only 4 shapes: circle, rectangle, diamond, taskbox
• Node attributes use colon: label:"Text"
• Edge labels use equals: [label="Text"]
• Handles required: n1.handle(right) -> n2.handle(left)
• Lane display label must be on the same line as the opening brace: laneName { # Label
• Sequence diagram quality: every cross-lane request needs a matching response edge before the next major request; define edges in chronological order; keep a strict request → response → next request rhythm; no orphaned nodes

Installation

The FlowZap MCP Server works with any tool that supports the Model Context Protocol (MCP):

All Compatible Coding Tools

Tool	How to Configure
Claude Desktop	Add to claude_desktop_config.json: macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json
Claude Code	Run: claude mcp add --transport stdio flowzap -- npx -y flowzap-mcp Or add to .mcp.json in your project root.
Cursor	Open Settings → Features → MCP Servers → Add Server. Use the same JSON config.
Windsurf IDE	Add to ~/.codeium/windsurf/mcp_config.json
OpenAI Codex	Add to ~/.codex/config.toml: [mcp_servers.flowzap] command = "npx" args = ["-y", "flowzap-mcp"] Or run: codex mcp add flowzap -- npx -y flowzap-mcp
Warp Terminal	Settings → MCP Servers → Click "+ Add" → Paste the JSON config.
Zed Editor	Add to settings.json: {"context_servers": {"flowzap": {"command": "npx", "args": ["-y", "flowzap-mcp"]}}}
Cline (VS Code)	Open Cline sidebar → MCP Servers icon → Edit cline_mcp_settings.json
Roo Code (VS Code)	Add to .roo/mcp.json in project or global settings.
Continue.dev	Create .continue/mcpServers/flowzap.yaml with: name: FlowZap mcpServers: - name: flowzap command: npx args: ["-y", "flowzap-mcp"]
Sourcegraph Cody	Add to VS Code settings.json via openctx.providers configuration.

Not Compatible: Replit and Lovable.dev only support remote MCP servers via URL. Use the Public API instead.

JSON Configuration

All tools use the same JSON configuration format:

{
  "mcpServers": {
    "flowzap": {
      "command": "npx",
      "args": ["-y", "flowzap-mcp"]
    }
  }
}

Windows Users: If tools don't appear, use the absolute path:

"command": "C:\\Program Files\\nodejs\\npx.cmd"

Find your npx path with: where.exe npx

Available Tools

Core Tools

Tool	Description
flowzap_validate	Validate FlowZap Code syntax
flowzap_create_playground	Create a shareable diagram URL
flowzap_get_syntax	Get FlowZap Code syntax documentation

Agent-Focused Tools

Tool	Description
flowzap_export_graph	Export FlowZap Code as structured JSON graph (lanes, nodes, edges) for reasoning
flowzap_artifact_to_diagram	Parse HTTP logs, OpenAPI specs, or code into FlowZap diagrams
flowzap_diff	Compare two versions of FlowZap Code and get structured diff
flowzap_apply_change	Apply structured patch operations (insert/remove/update nodes/edges)

Usage Examples

Basic Diagram Creation

Ask your AI assistant:

• "Generate a Sequence diagram of the current Sign In flow implemented in this App"
• "Create a workflow diagram for an order processing system"
• "Create an architecture diagram for a microservices API gateway"
• "Make a flowchart showing user registration flow"
• "Diagram a CI/CD pipeline with build, test, and deploy stages"

Agent-Focused Workflows

Parse HTTP Logs into Diagrams:

"Here are my nginx access logs. Create a sequence diagram showing the request flow."

The agent uses flowzap_artifact_to_diagram with artifactType: "http_logs".

Analyze Diagram Structure:

"Which steps in this workflow touch the database?"

The agent uses flowzap_export_graph to get a JSON graph, then queries it.

Show What Changed:

"I updated the workflow. What's different from the previous version?"

The agent uses flowzap_diff to compare old and new code.

Safe Incremental Updates:

"Add a logging step after the API call in this diagram."

The agent uses flowzap_apply_change with a structured patch instead of regenerating.

The assistant will:

1. Generate FlowZap Code based on your description
2. Validate the code
3. Create a playground URL with the appropriate view (workflow, sequence, or architecture) to view and share

FlowZap Code Example

sales { # Sales Team
  n1: circle label:"Order Received"
  n2: rectangle label:"Submit Order"
  n5: rectangle label:"Receive decision"
  n1.handle(right) -> n2.handle(left)
  n2.handle(bottom) -> fulfillment.n3.handle(top) [label="Submit"]
}

fulfillment { # Fulfillment
  n3: rectangle label:"Review Order"
  n4: rectangle label:"Return decision"
  n3.handle(right) -> n4.handle(left)
  n4.handle(top) -> sales.n5.handle(bottom) [label="Approved"]
}

Security

• No authentication required - Uses only public FlowZap APIs
• No user data access - Cannot read your diagrams or account
• Runs locally - The MCP server runs on your machine
• SSRF protected - Only connects to flowzap.xyz
• Rate limited - 30 requests/minute client-side
• Input validation - 50KB max code size

Agent Skill (skills.sh)

Install the FlowZap skill for 40+ compatible coding agents via skills.sh:

npx skills add flowzap-xyz/flowzap-mcp

• skills.sh listing: https://skills.sh/flowzap-xyz/flowzap-mcp/flowzap-diagrams
• Skill source: skills/flowzap-diagrams/
• Compatible with: Claude Code, Cursor, Windsurf, Codex, Gemini CLI, GitHub Copilot, Cline, Roo Code, Augment, OpenCode, and more.

Links

• FlowZap Website
• FlowZap Code Documentation
• FlowZap MCP Blog
• LLM Context
• Templates Library
• npm Package
• GitHub Repository

License

MIT