An MCP (Model Context Protocol) server for Electronic Navigational Charts (ENC) data, providing programmatic access to NOAA electronic navigational charts with S-57 format parsing capabilities.
enc-charts-mcp source profile. From the maintainer documentation: “An MCP (Model Context Protocol) server for Electronic Navigational Charts (ENC) data, providing programmatic access to NOAA electronic navigational charts with S-57 format parsing capabilities.”
The documented npm package is enc-charts-mcp. The configuration below comes from the maintainer’s example; adapt its paths and account values to your environment.
The example declares ENC_CACHE_DIR, ENC_CACHE_MAX_SIZE_GB, ENC_CACHE_MAX_AGE_DAYS. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| get_chart | |
| search_charts | |
| get_chart_metadata | |
| get_object_classes |
{
"mcpServers": {
"enc-charts": {
"command": "npx",
"args": [
"enc-charts-mcp"
],
"transport": {
"type": "stdio"
},
"env": {
"ENC_CACHE_DIR": "~/.enc-charts/cache",
"ENC_CACHE_MAX_SIZE_GB": "20",
"ENC_CACHE_MAX_AGE_DAYS": "14"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| ENC_CACHE_DIR | Declared in the maintainer’s client configuration. | Check documentation |
| ENC_CACHE_MAX_SIZE_GB | Declared in the maintainer’s client configuration. | Check documentation |
| ENC_CACHE_MAX_AGE_DAYS | Declared in the maintainer’s client configuration. | Check documentation |
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