x402-dataviz-mcp
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| render_chartA | Render a bar, line, or area chart from structured data and return it as an SVG string. Free, unauthenticated MCP tool — the open twin of the paid x402-gated dataviz HTTP API (https://x402-dataviz-poc.theliminalguy.workers.dev/chart), same renderer, no payment required. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 1 tool
With only one tool in the server, there is zero possibility of confusing it with another tool. The purpose of the tool is clearly described, covering bar, line, and area charts.
The single tool name 'render_chart' follows a clean verb_noun pattern. With only one tool, naming consistency is trivially achieved.
The server contains exactly one tool, which feels thin for a typical MCP server. However, the scope is narrow (chart rendering), so the single tool is not entirely unreasonable, but it is borderline.
The tool covers the core function of rendering a chart, but lacks auxiliary operations such as data validation, chart configuration, or output handling. For a focused dataviz server, this may suffice but leaves some gaps for more complex workflows.