Data Visualization

Flowchart Maker

Describe nodes and connections in Mermaid-style syntax and generate a layered flowchart diagram

html· HTML resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/flowchart-maker' \
  -H 'Content-Type: application/json' \
  -d '{"flowDefinition":"A[Start] --> B{Is valid?}\nB -->|yes| C[Process]\nB -->|no| D[Show error]\nC --> E([End])","direction":"TB","nodeShape":"rounded","colorScheme":"default"}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/flowchart-maker

Parameters

Name	Type	Required	Description
flowDefinition	textarea	Yes	Mermaid-style flow: A[Label] --> B, with optional \|edge label\| and shapes [rect], {diamond}, (stadium)
direction	select	Yes	—
nodeShape	select	Yes	—
colorScheme	select	Yes	—

Response format

HTML result

JSON

{
  "result": "<div>Processed HTML content</div>",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-flowchart-maker": {
      "name": "flowchart-maker",
      "description": "Describe nodes and connections in Mermaid-style syntax and generate a layered flowchart diagram",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=flowchart-maker",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "flowchart-maker",
    "arguments": {
  "flowDefinition": "A[Start] --> B{Is valid?}\nB -->|yes| C[Process]\nB -->|no| D[Show error]\nC --> E([End])",
  "direction": "TB",
  "nodeShape": "rounded",
  "colorScheme": "default"
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

Questions or issues? Contact [email protected]

Browse tools Open tool

curl -X POST 'https://api.elysiatools.com/en/api/tools/flowchart-maker' \ -H 'Content-Type: application/json' \ -d '{"flowDefinition":"A[Start] --> B{Is valid?}\nB -->|yes| C[Process]\nB -->|no| D[Show error]\nC --> E([End])","direction":"TB","nodeShape":"rounded","colorScheme":"default"}'

Name

Type

Required

Description

flowDefinition

textarea

Yes

Mermaid-style flow: A[Label] --> B, with optional |edge label| and shapes [rect], {diamond}, (stadium)

direction

select

Yes

—

nodeShape

select

Yes

—

colorScheme

select

Yes

—

{ "mcpServers": { "elysiatools-flowchart-maker": { "name": "flowchart-maker", "description": "Describe nodes and connections in Mermaid-style syntax and generate a layered flowchart diagram", "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=flowchart-maker", "command": "", "args": [], "env": {}, "isActive": true, "type": "sse" } } }

{ "jsonrpc": "2.0", "id": 2, "method": "tools/call", "params": { "name": "flowchart-maker", "arguments": { "flowDefinition": "A[Start] --> B{Is valid?}\nB -->|yes| C[Process]\nB -->|no| D[Show error]\nC --> E([End])", "direction": "TB", "nodeShape": "rounded", "colorScheme": "default" } } }