What is the key difference between CodeNib and Fillin?

CodeNib belongs to the Developer Tools category with local stdio execution, while Fillin belongs to the Developer Tools category with cloud HTTP/SSE execution.

How do I install CodeNib or Fillin 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 CodeNib and Fillin free or paid?

CodeNib operates under a Free / Open Source model (No auth required). Fillin operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

CodeNib lists 0 tools with 0 views and 81 GitHub stars. Fillin lists 0 tools with 0 views and 0 GitHub stars.

Can I use both CodeNib and Fillin 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 CodeNib or Fillin 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 CodeNib and Fillin free to use, or do they require API keys?

CodeNib is listed under a Free / Open Source model with No auth required . Fillin 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 CodeNib and Fillin at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both codenib and fillin 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, CodeNib has a Quality Score of 44 /100 ( Fair ) with 0 views, 0 installs, and 81 GitHub stars. Fillin holds a Quality Score of 42 /100 ( Fair ) with 0 views, 0 installs, and 0 GitHub stars.

Side-by-Side Model Context Protocol Comparison

CodeNib vs Fillin

In-depth architectural comparison of the CodeNib and Fillin 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

CodeNib

Developer Tools · Local stdio

Quality: 44/100 (Fair) | Auth: No auth required

Fillin

Developer Tools · Remote HTTP/SSE

Quality: 42/100 (Fair) | Auth: No auth required

Verdict Summary: Choose CodeNib if you need specialized Developer Tools tools running via a local process. Choose Fillin 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 CodeNib 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 CodeNib Details

Choose Fillin 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).

Explore Fillin Details

Feature & Specification Comparison

Specification	CodeNib Developer Tools	F Fillin Developer Tools
Summary	Ranked codebase search and static symbol navigation for coding agents.	Search for AI agents. Closes the LLM-cutoff gap: CVEs, papers, frontier AI, prediction markets.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

CodeNib Tools (0)

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

Fillin Tools (0)

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

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).

CodeNib Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "codenib": {
      "command": "uvx",
      "args": [
        "codenib"
      ]
    }
  }
}

Fillin Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "fillin": {
      "url": "https://fillin.glyphapi.dev"
    }
  }
}

Frequently Asked Questions

CodeNib is categorized under Developer Tools and uses a local stdio subprocess. In contrast, Fillin belongs to Developer Tools using remote streaming HTTP/SSE transport. Select CodeNib when you need capabilities focused on developer tools and Fillin when you require tools for developer tools.

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