io.github.Haswell119/chartbytes-mcp
ChartBytes
Is the ChartBytes MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-30.
Generate chart images (bar, hbar, stacked, line, area, scatter, pie, donut) as PNG/SVG for AI agents
alive probed 2026-11-14 · unchanged since 2026-10-30
- Run it
- docker run -i --rm ghcr.io/haswell119/chartbytes-mcp:1.0.2 (stdio, probed in a container with the network off)
- Host
- ghcr.io
- Reports itself as
- chartbytes-mcp 0.4.0
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- <0.1 % of a 1M context window
- Count
- 762 tokens in Claude Opus 5.5, exact, measured 2026-10-30. With the Claude Code prefix mcp__…__ on each tool name: 776. The o200k_base estimate is 490. Counted again when the tool definitions change. Method.
- Registry
- active, updated 2026-09-25 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.56×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| generate_chart | 762 | 490 | 100 % |
Compare this server with others.
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Servers that mention generate or scatter.
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- Conveo ai.conveo/conveo · needs auth
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Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.