MaStR MCP Server
by ulircsio.github.UliRCS/mastr-mcp-serverv1.0.1
MCP server for the German Marktstammdatenregister (MaStR) energy market register
context tax
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security
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cold start
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freshness
Slowing6mo ago
Install MaStR MCP server
Install in Claude Code
claude mcp add mastr -e MASTR_TOKEN='<mastr-token>' -- uvx mastr-mcp-serverInstall in Cursor
{
"mcpServers": {
"mastr": {
"command": "uvx",
"args": [
"mastr-mcp-server"
],
"env": {
"MASTR_TOKEN": "<mastr-token>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"mastr": {
"command": "uvx",
"args": [
"mastr-mcp-server"
],
"env": {
"MASTR_TOKEN": "<mastr-token>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"mastr": {
"type": "stdio",
"command": "uvx",
"args": [
"mastr-mcp-server"
],
"env": {
"MASTR_TOKEN": "<mastr-token>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"mastr": {
"command": "uvx",
"args": [
"mastr-mcp-server"
],
"env": {
"MASTR_TOKEN": "<mastr-token>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| MASTR_USER | — | — | MaStR Marktakteur number (SOM/SEM...) for SOAP API access. Without credentials, only 7 public tools are available. |
| MASTR_TOKEN | — | yes | MaStR web service token (~540 chars) for SOAP API access. Enables 14 additional SOAP tools. |
Freshness
Slowing — last maintenance signal 6mo ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-04-15 · 6mo ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-04-15 · 6mo ago · official registry · v1.0.1
FAQ
›How do I install the MaStR MCP server in Claude Code?
Run: claude mcp add mastr -e MASTR_TOKEN='<mastr-token>' -- uvx mastr-mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does MaStR require an API key?
Yes. It expects MASTR_TOKEN, of which 1 is a secret.
›Can I use MaStR as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is MaStR in the official MCP registry?
Yes, as io.github.UliRCS/mastr-mcp-server.