What is the key difference between Brreg No and MaStR MCP Server?

Brreg No belongs to the Developer Tools category with cloud HTTP/SSE execution, while MaStR MCP Server belongs to the Developer Tools category with local stdio execution.

How do I install Brreg No or MaStR MCP Server in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Brreg No and MaStR MCP Server free or paid?

Brreg No operates under a Free / Open Source model (No auth required). MaStR MCP Server operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Brreg No lists 6 tools with 0 views and 0 GitHub stars. MaStR MCP Server lists 0 tools with 0 views and 6 GitHub stars.

Can I use both Brreg No and MaStR MCP Server together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Brreg No vs MaStR MCP Server

In-depth architectural comparison of the Brreg No and MaStR MCP Server MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Brreg No

Developer Tools · Remote HTTP/SSE

Quality: 51/100 (Good) | Auth: No auth required

MaStR MCP Server

Developer Tools · Local stdio

Quality: 36/100 (Fair) | Auth: No auth required

Verdict Summary: Choose Brreg No if you need specialized Developer Tools tools running via a hosted cloud SSE transport. Choose MaStR MCP Server if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Brreg No when:

You need dedicated capabilities in the Developer Tools domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: search_entities, get_entity, search_sub_entities.

Explore Brreg No Details

Choose MaStR MCP Server when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore MaStR MCP Server Details

Feature & Specification Comparison

Specification	B Brreg No Developer Tools	MaStR MCP Server Developer Tools
Summary	Brønnøysund Register Centre (BRREG) MCP — Norway's official business register.	MCP server for the German Marktstammdatenregister (MaStR) energy market register
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Brreg No Tools (6)

search_entities

Search Norwegian companies/organisations (Enhetsregisteret) by name + filters. Results under _embedded.enheter. navn=name, organisasjonsform=org form (e.g. ASA, AS, ENK), naeringskode=industry, forretningsadresse=business address. e.g. {navn:"equinor"} or {navn:"bank", organisasjonsform:"ASA", komm…

get_entity

Full record for one entity by 9-digit org number. e.g. {orgnr:"923609016"} (Equinor ASA). Returns navn, organisasjonsform, naeringskode1, forretningsadresse, antallAnsatte, stiftelsesdato, etc.

search_sub_entities

Search sub-entities/branches (underenheter) — e.g. local establishments of a parent company. Results under _embedded.underenheter. Filter by overordnetEnhet (parent org number) and/or navn. e.g. {overordnetEnhet:"923609016"} lists Equinor branches.

get_sub_entity

Full record for one sub-entity/branch (underenhet) by 9-digit org number. e.g. {orgnr:"973861883"} (Equinor ASA AVD CCB SOTRA).

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Brreg No Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "brreg-no": {
      "url": "https://pipeworx.io"
    }
  }
}

MaStR MCP Server Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "mastr-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/inspector"
      ]
    }
  }
}

Frequently Asked Questions

Brreg No is categorized under Developer Tools and uses a remote streaming HTTP/SSE transport. In contrast, MaStR MCP Server belongs to Developer Tools using local stdio subprocess. Select Brreg No when you need capabilities focused on developer tools and MaStR MCP Server when you require tools for developer tools.

More alternatives to Brreg No More alternatives to MaStR MCP Server Developer Tools category hub