A side-by-side look at the FlowchartAI MCP and Chartforge MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose FlowchartAI MCP for data visualization work; choose Chartforge for data visualization as a local process. You can also run both side by side in one mcpServers block.
DATABASE_URL, BETTER_AUTH_SECRET, GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, OPENROUTER_API_KEY.CHARTFORGE_API_KEY, CHARTFORGE_API_URL.generate_chart, refine_chart, list_styles.Rows where the two servers differ are marked.
| Spec | F FlowchartAI MCP | |
|---|---|---|
| Category | Data Visualization | Data Visualization |
| Quality signal | 51/100 · Good | 51/100 · Good |
| Install command | Not confirmed yet | Confirmed |
| Transport | — | Local subprocess (stdio) |
| Auth | OAuth 2.0 | Not declared |
| Pricing | Paid service | Not declared |
| Required env vars | DATABASE_URLBETTER_AUTH_SECRETGOOGLE_CLIENT_IDGOOGLE_CLIENT_SECRETOPENROUTER_API_KEY | CHARTFORGE_API_KEYCHARTFORGE_API_URL |
| Verified owner | Community listing | Community listing |
| GitHub stars | 44 | 0 |
| Directory activity | 0 views 0 installs 0 upvotes | 2 views 0 installs 0 upvotes |
| Tools | Not listed | 3 |
| Full listing | View FlowchartAI MCP | View Chartforge |
No tool names declared yet. Check the project README from the listing page.
generate_chartGenerate a stunning, publication-quality chart or diagram from a natural language description. Returns a PNG image.refine_chartModify an existing chart. Provide the chart ID from a previous generation and describe what to change.list_stylesList available chart style presets with descriptions.Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
No confirmed install command for FlowchartAI MCP yet — follow the setup steps linked from its listing page rather than a guessed package name.
{
"mcpServers": {
"chartforge": {
"command": "npx",
"args": [
"chartforge-mcp"
],
"env": {
"CHARTFORGE_API_KEY": "YOUR_CHARTFORGE_API_KEY_HERE",
"CHARTFORGE_API_URL": "YOUR_CHARTFORGE_API_URL_HERE"
}
}
}
}