What is the key difference between Arc and Mcp Obsidian?

Arc belongs to the Knowledge & Memory category with cloud HTTP/SSE execution, while Mcp Obsidian belongs to the Knowledge & Memory category with local stdio execution.

How do I install Arc or Mcp Obsidian 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 Arc and Mcp Obsidian free or paid?

Arc operates under a Free / Open Source model (No auth required). Mcp Obsidian operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Arc lists 0 tools with 0 views and 0 GitHub stars. Mcp Obsidian lists 6 tools with 2 views and 1,603 GitHub stars.

Can I use both Arc and Mcp Obsidian 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.

How do I install Arc or Mcp Obsidian in Claude Desktop, Cursor, or Windsurf?

Both servers follow the standard Model Context Protocol configuration format. Simply copy the JSON block from the configuration section above and paste it into your AI client's mcpServers configuration object (for instance in claude_desktop_config.json or ~/.cursor/mcp.json ), then completely restart or refresh the application.

Are Arc and Mcp Obsidian free to use, or do they require API keys?

Arc is listed under a Free / Open Source model with No auth required . Mcp Obsidian operates under a Free / Open Source model with No auth required . If environment variables are required (such as API keys), be sure to define them under the env key in your MCP client's configuration file.

Can I run both Arc and Mcp Obsidian at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both arc and bitbonsai-mcp-obsidian as distinct keys inside the single mcpServers object in your configuration file. Your AI assistant will automatically select and call the appropriate tool from either server during chat sessions.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Arc has a Quality Score of 30 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars. Mcp Obsidian holds a Quality Score of 67 /100 ( Great ) with 2 views, 0 installs, and 1,603 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Arc vs Mcp Obsidian

In-depth architectural comparison of the Arc and Mcp Obsidian 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

Arc

Knowledge & Memory · Remote HTTP/SSE

Quality: 30/100 (Emerging) | Auth: No auth required

Mcp Obsidian

Knowledge & Memory · Local stdio

Quality: 67/100 (Great) | Auth: No auth required

Verdict Summary: Choose Arc if you need specialized Knowledge & Memory tools running via a hosted cloud SSE transport. Choose Mcp Obsidian if your workspace requires Knowledge & Memory integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Arc when:

You need dedicated capabilities in the Knowledge & Memory domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Arc Details

Choose Mcp Obsidian when:

You need dedicated capabilities in the Knowledge & Memory domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: Safe YAML frontmatter parsing and AST-aware updates, File operations: read, write, patch, delete, move notes/files, Partial reads: get note outlines and specific line ranges.

Explore Mcp Obsidian Details

Feature & Specification Comparison

Specification	A Arc Knowledge & Memory	Mcp Obsidian bitbonsai Knowledge & Memory
Summary	Local coordination hub for coding agents: durable shared memory, tasks, and handoffs. Desktop app.	Universal AI bridge for Obsidian vaults using MCP. Provides safe read/write access to notes with 11 comprehensive methods for vault operations including search, batch operations, tag management, and frontmatter handling. Works with Claude, ChatGPT, and any MCP-compatible AI assistant.
Category & Scope	Knowledge & Memory

Tools & Capabilities Breakdown

Arc Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Mcp Obsidian Tools (6)

Safe YAML frontmatter parsing and AST-aware updates

File operations: read, write, patch, delete, move notes/files

Partial reads: get note outlines and specific line ranges

Directory listing and batch reading of notes

Search with BM25 relevance reranking

Tag management: add, remove, list tags

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).

Arc Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "arc": {
      "url": "https://megastructure.ai/arc"
    }
  }
}

Mcp Obsidian Configuration

mcpServers (Claude Desktop / Cursor)

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

Frequently Asked Questions

Arc is categorized under Knowledge & Memory and uses a remote streaming HTTP/SSE transport. In contrast, Mcp Obsidian belongs to Knowledge & Memory using local stdio subprocess. Select Arc when you need capabilities focused on knowledge & memory and Mcp Obsidian when you require tools for knowledge & memory.

More alternatives to Arc More alternatives to Mcp Obsidian Knowledge & Memory category hub