# Szum Charts MCP server

Source: https://glimind.com/server/mcp-registry%2Fio.szum%2Fcharts
Registry id: `mcp-registry/io.szum/charts`
Status: live (checked 2026-10-27T00:21:24.548Z)

## Verdict

Szum Charts MCP server answered 100% of Glimind's liveness checks over 30 days, better than 42% of MCP servers, with 2498 ms median handshake and 1 outage in 90 days. Its agent-readiness grade is A (97/100) across 14 tools, costing an agent about 4,021 tokens to load. Checked every few minutes; no tool is ever called.

## Measurements (30 days)

| Metric | Value | Better than |
|---|---|---|
| Uptime, 30 days | 100% | 42% of MCP servers |
| Median handshake latency | 2498 ms | 2% of MCP servers |
| p95 handshake latency | 5215 ms | — |
| Checks in 30 days | 4,907 | — |
| Outages, 90 days | 1 | — |
| Median recovery | 11 min | — |
| Agent-readiness score | 97/100 (A) | 91% of MCP servers |
| Tools | 14 | — |
| Tool-list size for an agent | ~4,021 tokens | 41% of MCP servers |
| Days observed | 29 | — |

## Install

```json
{
  "mcpServers": {
    "szum-charts-mcp-server": {
      "type": "http",
      "url": "https://szum.io/mcp"
    }
  }
}
```

Claude Code:

```sh
claude mcp add --transport http szum-charts-mcp-server https://szum.io/mcp
```

## Tools (14)

- `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; r
- `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 do
- `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 dra
- `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 
- `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, a
- `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
- `list_chart_types`: Use this when choosing a chart family. Returns every current chart type with its shared and family-specific fields.
- `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-onl
- `list_themes`: Use this when choosing a visual theme for a chart. Returns every built-in theme with guidance on where each works best and, when signed in, the workspace's shar
- `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.
- `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 r
- `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
- `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 
- `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 

Measured by Glimind (https://glimind.com): MCP handshake + tool list only, no tool is ever called. CC BY 4.0.