Validate, render (SVG/PNG) and describe WestCoast Charts specs headlessly, with a data table.
Connect Runs on your machine
claude mcp add west-coast-charts-agent -e WCC_LICENSE_KEY=<WCC_LICENSE_KEY> -e WCC_LIB_ROOT=<WCC_LIB_ROOT> -e WCC_DEFAULT_THEME=<WCC_DEFAULT_THEME> -e WCC_EVALUATION=<WCC_EVALUATION> -e WCC_MAX_PIXELS=<WCC_MAX_PIXELS> -- npx -y [email protected]{
"mcpServers": {
"west-coast-charts-agent": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"WCC_LICENSE_KEY": "<WCC_LICENSE_KEY>",
"WCC_LIB_ROOT": "<WCC_LIB_ROOT>",
"WCC_DEFAULT_THEME": "<WCC_DEFAULT_THEME>",
"WCC_EVALUATION": "<WCC_EVALUATION>",
"WCC_MAX_PIXELS": "<WCC_MAX_PIXELS>"
}
}
}
}{
"mcpServers": {
"west-coast-charts-agent": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"WCC_LICENSE_KEY": "<WCC_LICENSE_KEY>",
"WCC_LIB_ROOT": "<WCC_LIB_ROOT>",
"WCC_DEFAULT_THEME": "<WCC_DEFAULT_THEME>",
"WCC_EVALUATION": "<WCC_EVALUATION>",
"WCC_MAX_PIXELS": "<WCC_MAX_PIXELS>"
}
}
}
}{
"servers": {
"west-coast-charts-agent": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"WCC_LICENSE_KEY": "<WCC_LICENSE_KEY>",
"WCC_LIB_ROOT": "<WCC_LIB_ROOT>",
"WCC_DEFAULT_THEME": "<WCC_DEFAULT_THEME>",
"WCC_EVALUATION": "<WCC_EVALUATION>",
"WCC_MAX_PIXELS": "<WCC_MAX_PIXELS>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
WCC_LICENSE_KEYOptional, secret | Premium licence key. Only for Premium chart types; requires the separately supplied complete library. |
WCC_LIB_ROOTOptional | Path to an installed WestCoast Charts library (e.g. the Premium package). Default: the resolved west-coast-charts. |
WCC_DEFAULT_THEMEOptional | Theme when a spec sets none. |
WCC_EVALUATIONOptional | 1 = Premium types without a key render a watermarked preview (needs the Premium runtime). |
WCC_MAX_PIXELSOptional | Upper limit for rendered PNG pixels. |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 10 Nov 2026 |
| Last updated | 10 Nov 2026 |
| Registry name | io.github.Lokumbus/west-coast-charts-agent |
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