What is the key difference between Prolog Reasoner and MCP Server?

Prolog Reasoner belongs to the Code Execution category with local stdio execution, while MCP Server belongs to the Code Execution category with local stdio execution.

How do I install Prolog Reasoner or 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 Prolog Reasoner and MCP Server free or paid?

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

Which MCP server has more tools and community activity?

Prolog Reasoner lists 5 tools with 3 views and 11 GitHub stars. MCP Server lists 6 tools with 1 views and 296 GitHub stars.

Can I use both Prolog Reasoner and 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

Prolog Reasoner vs MCP Server

In-depth architectural comparison of the Prolog Reasoner and 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

Prolog Reasoner

Code Execution · Local stdio

Quality: 57/100 (Good) | Auth: No auth required

MCP Server

Code Execution · Local stdio

Quality: 43/100 (Fair) | Auth: No auth required

Verdict Summary: Choose Prolog Reasoner if you need specialized Code Execution tools running via a local process. Choose MCP Server if your workspace requires Code Execution integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Prolog Reasoner when:

You need dedicated capabilities in the Code Execution domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: execute_prolog, list_rule_bases, get_rule_base.

Explore Prolog Reasoner Details

Choose MCP Server when:

You need dedicated capabilities in the Code Execution domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: Isolated execution in WebAssembly sandboxes, Configurable CPU (compute) allocation levels, Memory and timeout limits per task.

Explore MCP Server Details

Feature & Specification Comparison

Specification	Prolog Reasoner rikarazome Code Execution	MCP Server mavdol/capsule Code Execution
Summary
Category & Scope	Code Execution	Code Execution

Tools & Capabilities Breakdown

Prolog Reasoner Tools (5)

execute_prolog

Execute Prolog code and return reasoning results. Write Prolog facts and rules, then run a query against them. Supports CLP(FD) constraints, negation-as-failure, and all standard SWI-Prolog features.

list_rule_bases

List all saved rule bases with description and tags. Returns ``{"rule_bases": [{"name": str, "description": str, "tags": list[str]}, ...]}`` sorted by name. Metadata is extracted from the leading ``% description:`` / ``% tags:`` comments of each rule base file (see §4.10).

get_rule_base

Retrieve the Prolog source of a saved rule base.

save_rule_base

Save a named rule base containing Prolog rules that can be reused across ``execute_prolog`` calls. Use this for stable, reusable knowledge (e.g. ``piece_moves`` for chess piece movement rules). For one-time facts, include them directly in ``prolog_code`` instead.

delete_rule_base

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).

Prolog Reasoner Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "rikarazome-prolog-reasoner": {
      "command": "uvx",
      "args": [
        "prolog-reasoner"
      ]
    }
  }
}

MCP Server Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "mavdol-capsule-mcp-server": {
      "command": "uvx",
      "args": [
        "capsule-run"
      ]
    }
  }
}

Frequently Asked Questions

Prolog Reasoner is categorized under Code Execution and uses a local stdio subprocess. In contrast, MCP Server belongs to Code Execution using local stdio subprocess. Select Prolog Reasoner when you need capabilities focused on code execution and MCP Server when you require tools for code execution.

More alternatives to Prolog Reasoner More alternatives to MCP Server Code Execution category hub Canonical compare URL