MCP server for the German Marktstammdatenregister (MaStR) energy market register
Connect Runs on your machine
claude mcp add mastr-mcp-server -e MASTR_USER=<MASTR_USER> -e MASTR_TOKEN=<MASTR_TOKEN> -- uvx mastr-mcp-server==1.0.1
{
"mcpServers": {
"mastr-mcp-server": {
"command": "uvx",
"args": [
"mastr-mcp-server==1.0.1"
],
"env": {
"MASTR_USER": "<MASTR_USER>",
"MASTR_TOKEN": "<MASTR_TOKEN>"
}
}
}
}
{
"mcpServers": {
"mastr-mcp-server": {
"command": "uvx",
"args": [
"mastr-mcp-server==1.0.1"
],
"env": {
"MASTR_USER": "<MASTR_USER>",
"MASTR_TOKEN": "<MASTR_TOKEN>"
}
}
}
}
{
"servers": {
"mastr-mcp-server": {
"type": "stdio",
"command": "uvx",
"args": [
"mastr-mcp-server==1.0.1"
],
"env": {
"MASTR_USER": "<MASTR_USER>",
"MASTR_TOKEN": "<MASTR_TOKEN>"
}
}
}
}
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 |
|---|---|
MASTR_USEROptional | MaStR Marktakteur number (SOM/SEM...) for SOAP API access. Without credentials, only 7 public tools are available. |
MASTR_TOKENOptional, secret | MaStR web service token (~540 chars) for SOAP API access. Enables 14 additional SOAP tools. |
Details
| Package | [email protected] (PYPI, stdio) |
| First published | 15 Apr 2026 |
| Last updated | 15 Apr 2026 |
| Registry name | io.github.UliRCS/mastr-mcp-server |
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