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100
MCP live MCP 2025-11-25 streamable-http

Charts by Szum

io.szum/charts

Create, inspect, manage, and render charts and data visualizations as SVG/PNG or interactive embeds.

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Uptime
100.0%
5 direct probes · 30d
Response
2314ms
last probe
Tools
14
callable
Resources
3
readable
Prompts
0
available
Primary URL
https://szum.io/mcp
Score: 100/100
Handshake verified by our own probe.
why this score
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
14 tools, 3 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
17 items in total; 3 or more earns these points.
pass Describes itself 10/10
100 characters; more than 30 earns these points.

Tools · 14

render_chart

Use this when the user wants to preview or generate a chart. Validate each generated or changed chart input once before rendering, saving, or updating. Do not revalidate unchanged input; a successful …

save_chart

Use this when the user wants to permanently save and publish a Szum chart document. Validate each generated or changed chart input once before rendering, saving, or updating. Do not revalidate unchang…

list_charts

Use this when the user wants to find charts in their saved library. Returns paginated metadata and URLs, not chart documents; requires authentication. Draft-only editor charts have publishedAt null, h…

get_chart

Use this when the user identifies a saved chart by id and wants to view it or retrieve its metadata and URLs. Displays the published chart when available and does not return its document; requires aut…

get_chart_document

Use this when the user identifies a saved chart by id and needs its complete published Szum document for inspection or reuse. Does not return a newer editor draft; requires authentication.

get_preview_state

Use this when the Szum chart App needs to restore a rendered preview as its current transient or saved view. It is read-only, owner-scoped when authenticated, and hidden from the model.

update_chart

Use this when the user wants to replace and publish a saved chart's document while keeping its id and URLs. Validate each generated or changed chart input once before rendering, saving, or updating. D…

rename_chart

Use this when the user wants to change a saved chart's library title without changing its document, publication state, or public URLs; requires authentication.

delete_chart

Use this when the user explicitly wants to permanently delete one saved chart. Deletion cannot be undone, and retrying an already completed deletion succeeds; requires authentication.

validate_chart

Use this when a chart request or document will be rendered, saved, or updated. Validate each generated or changed chart input once before rendering, saving, or updating. Do not revalidate unchanged in…

list_themes

Use this when choosing a visual theme for a chart. Returns every available theme and guidance on where each works best.

list_chart_types

Use this when choosing a chart family. Returns every current chart type with its shared and family-specific fields.

get_examples

Get complete Szum documents for validation, rendering, or saving, with guidance on when to use each pattern. No filters returns one starter per chart type. Any filter searches the complete catalog; al…

get_schema

Use this before authoring an unfamiliar field instead of probing validate_chart for errors. Returns the JSON Schema for the whole Szum document, covering config, data, presentation, size, and output, …

Resources · 3

Szum chart result

Inline previews and results for Szum chart tools

ui://szum/chart-result.html
szum-schema

JSON Schema for the active Szum ChartDocument contract, including presentation, size, and output (version 2026-09-26)

szum://schema
szum-llms-txt

Complete API and chart-authoring reference

szum://llms-txt

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "charts_by_szum": {
      "url": "https://szum.io/mcp",
      "transport": "streamable-http"
    }
  }
}