What is the key difference between Brreg No and Plexus?

Brreg No belongs to the Developer Tools category with cloud HTTP/SSE execution, while Plexus belongs to the Developer Tools category with cloud HTTP/SSE execution.

How do I install Brreg No or Plexus 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 Plexus free or paid?

Brreg No operates under a Free / Open Source model (No auth required). Plexus 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. Plexus lists 15 tools with 0 views and 0 GitHub stars.

Can I use both Brreg No and Plexus 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 Plexus

In-depth architectural comparison of the Brreg No and Plexus 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

Plexus

Developer Tools · Remote HTTP/SSE

Quality: 49/100 (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 Plexus if your workspace requires Developer Tools integration with remote web transport. 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 Plexus 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: save_entity, get_entity, list_entities.

Explore Plexus Details

Feature & Specification Comparison

Specification	B Brreg No Developer Tools	P Plexus Developer Tools
Summary	Brønnøysund Register Centre (BRREG) MCP — Norway's official business register.	Typed on-prem knowledge graph for AI agents — read-only for humans, write-only for agents via MCP.
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"
    }
  }
}

Plexus Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "plexus": {
      "url": "https://pcas.io"
    }
  }
}

Frequently Asked Questions

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