What is the key difference between Pgtuner MCP and MCP Server Duckdb?

Pgtuner MCP belongs to the Databases category with local stdio execution, while MCP Server Duckdb belongs to the Databases category with local stdio execution.

How do I install Pgtuner MCP or MCP Server Duckdb 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 Pgtuner MCP and MCP Server Duckdb free or paid?

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

Which MCP server has more tools and community activity?

Pgtuner MCP lists 16 tools with 2 views and 30 GitHub stars. MCP Server Duckdb lists 3 tools with 2 views and 179 GitHub stars.

Can I use both Pgtuner MCP and MCP Server Duckdb 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

Pgtuner MCP vs MCP Server Duckdb

In-depth architectural comparison of the Pgtuner MCP and MCP Server Duckdb 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

Pgtuner MCP

Databases · Local stdio

Quality: 52/100 (Good) | Auth: No auth required

MCP Server Duckdb

Databases · Local stdio

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

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

Which MCP Server Should You Choose?

Choose Pgtuner MCP when:

You need dedicated capabilities in the Databases domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
You have access to required keys: DATABASE_URI, PGTUNER_EXCLUDE_USERIDS, PGTUNER_STATEMENT_TIMEOUT_MS, PGTUNER_IDLE_TXN_TIMEOUT_MS, PGTUNER_LOCK_TIMEOUT_MS, PGTUNER_CORS_ALLOW_ORIGINS, PGTUNER_LINT_DISABLED_RULES.
Primary tools included: get_slow_queries, analyze_query, get_table_stats.

Explore Pgtuner MCP Details

Choose MCP Server Duckdb when:

You need dedicated capabilities in the Databases domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: query, Input, Output.

Feature & Specification Comparison

Specification	Pgtuner MCP Databases	MCP Server Duckdb ktanaka101 Databases
Summary	provides AI-powered PostgreSQL performance tuning capabilities.	DuckDB database integration with schema inspection and query capabilities
Category & Scope	Databases	Databases

Tools & Capabilities Breakdown

Pgtuner MCP Tools (16)

get_slow_queries

Retrieve slow queries from pg_stat_statements with detailed stats (total time, mean time, calls, cache hit ratio). Excludes system catalog queries.

analyze_query

Analyze a query's execution plan with EXPLAIN ANALYZE, including automated issue detection

get_table_stats

Get detailed table statistics including size, row counts, dead tuples, and access patterns

analyze_disk_io_patterns

Analyze disk I/O read/write patterns, identify hot tables, buffer cache efficiency, and I/O bottlenecks. Supports filtering by analysis type (all, buffer_pool, tables, indexes, temp_files, checkpoints).

get_index_recommendations

AI-powered index recommendations based on query workload analysis

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).

Pgtuner MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "pgtuner-mcp": {
      "command": "uvx",
      "args": [
        "pgtuner_mcp"
      ],
      "env": {
        "DATABASE_URI": "YOUR_DATABASE_URI_HERE",
        "PGTUNER_EXCLUDE_USERIDS": "YOUR_PGTUNER_EXCLUDE_USERIDS_HERE",
        "PGTUNER_STATEMENT_TIMEOUT_MS": "YOUR_PGTUNER_STATEMENT_TIMEOUT_MS_HERE",
        "PGTUNER_IDLE_TXN_TIMEOUT_MS": "YOUR_PGTUNER_IDLE_TXN_TIMEOUT_MS_HERE",
        "PGTUNER_LOCK_TIMEOUT_MS": "YOUR_PGTUNER_LOCK_TIMEOUT_MS_HERE",
        "PGTUNER_CORS_ALLOW_ORIGINS": "YOUR_PGTUNER_CORS_ALLOW_ORIGINS_HERE",
        "PGTUNER_LINT_DISABLED_RULES": "YOUR_PGTUNER_LINT_DISABLED_RULES_HERE"
      }
    }
  }
}

MCP Server Duckdb Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "ktanaka101-mcp-server-duckdb": {
      "command": "uvx",
      "args": [
        "mcp-server-duckdb"
      ]
    }
  }
}

Frequently Asked Questions

Pgtuner MCP is categorized under Databases and uses a local stdio subprocess. In contrast, MCP Server Duckdb belongs to Databases using local stdio subprocess. Select Pgtuner MCP when you need capabilities focused on databases and MCP Server Duckdb when you require tools for databases.

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