postgres-mcp-server

postgres-mcp-server

Enables AI assistants to manage, monitor, and optimize PostgreSQL databases with over 200 specialized tools for operations, security, performance tuning, and diagnostics.

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README

🔄 PostgreSQL MCP Server – AI-Powered PostgreSQL Management & Monitoring

A powerful, AI-integrated PostgreSQL Model Context Protocol (MCP) server for automated database operations, monitoring, security, diagnostics, and optimization. Seamlessly manage PostgreSQL with tools and prompts designed for AI assistants like Claude and ChatGPT.

Python License: MIT PostgreSQL MCP

GitHub Repository: https://github.com/mukul975/postgres-mcp-server.git

📌 Why Use This?

  • 🔍 Explore, diagnose & optimize PostgreSQL databases with over 200 specialized tools.
  • 💬 Interact naturally using AI prompts for SQL generation, health checks, and performance reviews.
  • 🛡️ Built-in security, permission validation, and error handling.
  • ⚙️ Developer-ready integration for Claude, ChatGPT, and custom agents.

🔑 Features at a Glance

🔧 Core Database Operations

  • ✅ Create/list databases & schemas
  • ✅ Describe tables, analyze indexes
  • ✅ Safe SELECT, UPDATE, DELETE execution

📊 Monitoring & Performance

  • 📈 Query performance & execution plan insights
  • 🔒 Lock analysis, replication lag checks
  • 🚀 Index, query, and buffer pool optimization

🛡️ Security & Access Control

  • 👥 User creation, role auditing
  • 🔐 Privilege granting & connection monitoring

⚙️ Diagnostic Utilities

  • 🧪 Table bloat check, autovacuum insights
  • 💽 WAL logs, checkpoints, long transaction alerts

📚 Tool Categories

To help you navigate, tools are grouped under the following main categories:

  • 🔧 General Database Operations
  • 👥 User & Role Management
  • 📈 Performance Monitoring & Tuning
  • 🔁 Replication & Backup
  • 🔒 Lock & Concurrency Management
  • ✅ Constraint & Integrity Management
  • 📊 Resource and Activity Monitoring
  • 🧰 Index and Table Maintenance
  • 🔬 Advanced Analysis & Diagnostics

🚀 Quick Start

1. Installation

python -m venv venv
source venv/bin/activate   # or venv\Scripts\activate on Windows
pip install -r requirements.txt

2. Configuration

cp .env.example .env  # or use copy on Windows
# Update with:
DATABASE_URL=postgresql://username:password@localhost:5432/db

3. Run the Server

python postgres_server.py

✅ For MCP CLI users:

mcp dev postgres_server.py

🧠 Integrate with Claude Desktop

Example config (claude_desktop_config.json):

<details> <summary>Windows</summary>

{
  "mcpServers": {
    "postgres": {
      "command": "python",
      "args": ["postgres_server.py"],
      "cwd": "C:\\path\\to\\postgres-mcp-server",
      "env": {
        "DATABASE_URL": "postgresql://username:password@localhost:5432/database"
      }
    }
  }
}

</details>

<details> <summary>macOS/Linux</summary>

{
  "mcpServers": {
    "postgres": {
      "command": "python",
      "args": ["postgres_server.py"],
      "cwd": "/absolute/path/to/postgres-mcp-server",
      "env": {
        "DATABASE_URL": "postgresql://username:password@localhost:5432/database"
      }
    }
  }
}

</details>

🔍 Tool Search & Complete Reference (238 Tools)

🔎 Tool Search Bar

Quick Tool Finder: Use Ctrl+F (or Cmd+F) to search for specific tools by name, category, or functionality.

📊 Tools by Category Overview

Category Count Description
🧱 Core Database 26 Basic database operations, schema management
👥 User & Security 18 User management, roles, permissions
📈 Performance 45 Monitoring, analysis, optimization
🔒 Locks & Concurrency 22 Lock analysis, blocking queries, deadlocks
🛠️ Maintenance 28 VACUUM, ANALYZE, table maintenance
📊 Index Management 15 Index creation, analysis, optimization
🔄 Replication & Backup 20 Replication monitoring, backup status
📋 Table Operations 25 Table statistics, constraints, data
📦 Extensions & Objects 18 Extensions, functions, triggers
⚙️ Configuration 12 Settings, variables, system info
🧪 Advanced Analysis 29 Deep diagnostics, predictions, recommendations

📚 Complete Tool Reference

🧱 Core Database Operations (25 tools)

<details> <summary>Click to expand Core Database tools</summary>

  • PostgreSQL_analyze_database - Run ANALYZE on entire database
  • PostgreSQL_create_schema - Create new database schema
  • PostgreSQL_describe_table - Get detailed table information
  • PostgreSQL_drop_schema - Drop database schema
  • PostgreSQL_execute_select_query - Execute SELECT queries
  • PostgreSQL_execute_update_query - Execute INSERT/UPDATE/DELETE
  • PostgreSQL_explain_query - Show query execution plan
  • PostgreSQL_get_database_config - Get database configuration
  • PostgreSQL_get_database_growth_trend - Analyze database growth
  • PostgreSQL_get_database_size - Get database size information
  • PostgreSQL_get_database_size_by_tablespace - Size by tablespace
  • PostgreSQL_get_estimated_row_counts - Get estimated row counts
  • PostgreSQL_get_server_version - Get PostgreSQL version info
  • PostgreSQL_get_table_count - Get row count of table
  • PostgreSQL_get_table_size - Get table size information
  • PostgreSQL_get_table_size_summary - Comprehensive table sizes
  • PostgreSQL_get_tablespace_info - Get tablespace information
  • PostgreSQL_get_tablespace_usage - Tablespace usage statistics
  • PostgreSQL_list_databases - List all databases
  • PostgreSQL_list_schemas - List all schemas
  • PostgreSQL_list_tables - List tables in schema
  • PostgreSQL_list_views - List views in schema
  • PostgreSQL_use_database - Switch to different database
  • PostgreSQL_vacuum_analyze_table - VACUUM ANALYZE table
  • PostgreSQL_kill_connection - Terminate database connection

</details>

👥 User & Security Management (18 tools)

<details> <summary>Click to expand User & Security tools</summary>

  • PostgreSQL_create_user - Create database user/role
  • PostgreSQL_drop_user - Drop database user/role
  • PostgreSQL_get_column_privileges - Get column-level privileges
  • PostgreSQL_get_role_attributes - Get role attributes and details
  • PostgreSQL_get_table_permissions - Get table permissions
  • PostgreSQL_grant_privileges - Grant table privileges
  • PostgreSQL_list_roles_with_login - List roles with login capability
  • PostgreSQL_list_roles_with_superuser - List superuser roles
  • PostgreSQL_list_users_and_roles - List all users and roles
  • PostgreSQL_revoke_privileges - Revoke table privileges
  • PostgreSQL_security_audit - Basic security audit
  • PostgreSQL_get_active_connections - Get active connections
  • PostgreSQL_get_connection_limits - Connection limits and usage
  • PostgreSQL_get_connection_pool_stats - Connection pool statistics
  • PostgreSQL_get_idle_connections - Find idle connections
  • PostgreSQL_connection_churn_analysis - Analyze connection patterns
  • PostgreSQL_get_concurrent_connection_analysis - Concurrent connections
  • PostgreSQL_analyze_connection_pool_efficiency - Pool efficiency

</details>

📈 Performance Monitoring & Analysis (45 tools)

<details> <summary>Click to expand Performance tools</summary>

  • PostgreSQL_analyze_query_complexity - Analyze query complexity
  • PostgreSQL_buffer_cache_hit_ratio - Cache hit ratios
  • PostgreSQL_check_long_running_queries - Find long-running queries
  • PostgreSQL_get_active_transactions - Get active transactions
  • PostgreSQL_get_buffer_cache_contents - Buffer cache contents
  • PostgreSQL_get_buffer_hit_ratios_detailed - Detailed hit ratios
  • PostgreSQL_get_cache_hit_ratio - Cache hit ratios
  • PostgreSQL_get_cache_hit_ratios - Buffer and index cache ratios
  • PostgreSQL_get_checkpoint_analysis - Checkpoint analysis
  • PostgreSQL_get_checkpoint_info - Checkpoint information
  • PostgreSQL_get_checkpoint_stats - Checkpoint statistics
  • PostgreSQL_get_column_statistics - Column statistics
  • PostgreSQL_get_long_running_transactions - Long transactions
  • PostgreSQL_get_memory_context_analysis - Memory context analysis
  • PostgreSQL_get_memory_usage_stats - Memory usage statistics
  • PostgreSQL_get_query_error_analysis - Query error analysis
  • PostgreSQL_get_query_plan_cache_analysis - Query plan cache
  • PostgreSQL_get_query_plan_cache_stats - Plan cache statistics
  • PostgreSQL_get_query_plans - Query execution plans
  • PostgreSQL_get_query_runtime_distribution - Query runtime stats
  • PostgreSQL_get_slow_queries - Get slow queries
  • PostgreSQL_get_slow_query_patterns - Slow query patterns
  • PostgreSQL_get_slow_query_statements - Slow query statements
  • PostgreSQL_get_table_access_patterns - Table access patterns
  • PostgreSQL_get_table_io_stats - Table I/O statistics
  • PostgreSQL_get_table_statistics - Table statistics
  • PostgreSQL_get_temp_file_stats - Temporary file statistics
  • PostgreSQL_get_temp_files - Temporary file usage
  • PostgreSQL_get_top_heavy_queries - Top resource-heavy queries
  • PostgreSQL_get_transaction_age_monitoring - Transaction age monitoring
  • PostgreSQL_get_wait_events - Current wait events
  • PostgreSQL_analyze_advanced_buffer_usage - Advanced buffer analysis
  • PostgreSQL_buffer_cache_relation_analysis - Buffer cache per relation
  • PostgreSQL_checkpoint_activity - Detailed checkpoint activity
  • PostgreSQL_connection_pool_stats - Connection pool stats
  • PostgreSQL_get_connection_pool_analysis - Connection pool analysis
  • PostgreSQL_get_performance_regression_indicators - Performance regression
  • PostgreSQL_high_io_tables - High I/O tables
  • PostgreSQL_memory_usage_analysis - Memory usage analysis
  • PostgreSQL_table_io_patterns - Table I/O patterns
  • PostgreSQL_temp_file_usage - Temporary file usage monitoring
  • PostgreSQL_temporary_objects_usage - Temporary objects analysis
  • PostgreSQL_active_temp_file_users - Active temp file users
  • PostgreSQL_get_high_wait_events - High wait events
  • PostgreSQL_query_cancellation_analysis - Query cancellation analysis

</details>

🔒 Locks & Concurrency Management (22 tools)

<details> <summary>Click to expand Lock & Concurrency tools</summary>

  • PostgreSQL_check_blocking_queries - Get blocking queries
  • PostgreSQL_detect_conflicting_queries - Detect conflicting queries
  • PostgreSQL_detect_foreign_key_lock_contention - FK lock contention
  • PostgreSQL_detect_index_lock_waits - Index lock waits
  • PostgreSQL_foreign_key_conflicts - Foreign key conflicts
  • PostgreSQL_get_blocking_locks - Blocking and blocked queries
  • PostgreSQL_get_lock_monitoring - Monitor current locks
  • PostgreSQL_get_lock_statistics - Lock statistics with wait times
  • PostgreSQL_get_lock_waits - Current lock waits
  • PostgreSQL_get_locks_info - Current database locks
  • PostgreSQL_deadlock_analysis - Deadlock history and patterns
  • PostgreSQL_analyze_foreign_key_locks - Foreign key lock analysis
  • PostgreSQL_predicate_lock_analysis - Predicate lock analysis
  • PostgreSQL_longest_idle_transactions - Longest idle transactions
  • PostgreSQL_long_running_prepared_transactions - Long prepared transactions
  • PostgreSQL_orphaned_prepared_transactions - Orphaned prepared transactions
  • PostgreSQL_prepared_transaction_retention - Prepared transaction retention
  • PostgreSQL_get_prepared_transactions - Get prepared transactions
  • PostgreSQL_analyze_transaction_wraparound - Transaction wraparound
  • PostgreSQL_detect_transaction_wraparound_risk - Wraparound risk
  • PostgreSQL_transaction_wraparound_monitoring - Wraparound monitoring
  • PostgreSQL_vacuum_freeze_age_analysis - Freeze age analysis

</details>

🛠️ Maintenance & Optimization (28 tools)

<details> <summary>Click to expand Maintenance tools</summary>

  • PostgreSQL_analyze_autovacuum_efficiency - Autovacuum efficiency
  • PostgreSQL_analyze_table_freeze_stats - Table freeze statistics
  • PostgreSQL_autovacuum_tuning - Autovacuum tuning recommendations
  • PostgreSQL_check_table_bloat - Check table bloat
  • PostgreSQL_get_autovacuum_activity - Autovacuum operations
  • PostgreSQL_get_autovacuum_settings - Autovacuum settings
  • PostgreSQL_get_autovacuum_stats_per_table - Autovacuum per table
  • PostgreSQL_get_bloated_tables - Find bloated tables
  • PostgreSQL_get_table_bloat_estimation - Table bloat estimation
  • PostgreSQL_get_table_fragmentation_analysis - Table fragmentation
  • PostgreSQL_get_vacuum_analyze_recommendations - VACUUM recommendations
  • PostgreSQL_get_vacuum_inefficiency_tables - Inefficient VACUUM tables
  • PostgreSQL_get_vacuum_progress - Monitor VACUUM progress
  • PostgreSQL_vacuum_analyze_table - VACUUM ANALYZE table
  • PostgreSQL_vacuum_progress_monitoring - VACUUM progress monitoring
  • PostgreSQL_analyze_vacuum_efficiency - Vacuum efficiency analysis
  • PostgreSQL_detect_table_bloat_regression - Table bloat regression
  • PostgreSQL_maintenance_window_activity - Maintenance window analysis
  • PostgreSQL_monitor_autovacuum_progress - Monitor autovacuum
  • PostgreSQL_non_autovacuum_friendly_datatypes - Non-autovacuum datatypes
  • PostgreSQL_partition_maintenance - Partition maintenance
  • PostgreSQL_vacuum_analyze_frequency_analysis - VACUUM frequency
  • PostgreSQL_analyze_table_freeze_stats - Freeze stats analysis
  • PostgreSQL_get_vacuum_inefficiency_tables - VACUUM inefficiency
  • PostgreSQL_toast_table_excessive_usage - TOAST table usage
  • PostgreSQL_unlogged_tables_analysis - Unlogged tables analysis
  • PostgreSQL_statistics_reset_frequency - Statistics reset frequency
  • PostgreSQL_parameter_sniffing_detection - Parameter sniffing detection

</details>

📊 Index Management & Analysis (15 tools)

<details> <summary>Click to expand Index tools</summary>

  • PostgreSQL_analyze_index_bloat - Identify index bloat
  • PostgreSQL_create_index - Create index on table
  • PostgreSQL_drop_index - Drop index
  • PostgreSQL_get_index_maintenance_status - Index maintenance status
  • PostgreSQL_get_index_usage - Index usage statistics
  • PostgreSQL_get_index_usage_stats - Comprehensive index usage
  • PostgreSQL_get_unused_indexes - Find unused indexes
  • PostgreSQL_identify_index_redundancy - Redundant indexes
  • PostgreSQL_index_bloat_maintenance_analysis - Index bloat maintenance
  • PostgreSQL_index_dead_tuples_analysis - Dead tuples per index
  • PostgreSQL_index_redundancy_detection - Index redundancy detection
  • PostgreSQL_index_scan_efficiency - Index scan efficiency
  • PostgreSQL_list_indexes - List table indexes
  • PostgreSQL_analyze_index_effectiveness - Index effectiveness
  • PostgreSQL_plan_invalidation_analysis - Plan invalidation analysis

</details>

🔄 Replication & Backup Management (20 tools)

<details> <summary>Click to expand Replication & Backup tools</summary>

  • PostgreSQL_backup_recovery_info - Backup and recovery info
  • PostgreSQL_get_backup_details - Last backup status
  • PostgreSQL_get_backup_recovery_readiness - Backup readiness
  • PostgreSQL_get_backup_status - Backup status information
  • PostgreSQL_get_logical_replication_stats - Logical replication stats
  • PostgreSQL_get_publication_details - Publication details
  • PostgreSQL_get_publication_subscription_details - Pub/sub details
  • PostgreSQL_get_publication_tables - Publication tables
  • PostgreSQL_get_publications - Logical replication publications
  • PostgreSQL_get_replication_slot_details - Replication slot details
  • PostgreSQL_get_replication_slot_infos - Replication slot info
  • PostgreSQL_get_replication_slots - Replication slots
  • PostgreSQL_get_replication_stats - Replication statistics
  • PostgreSQL_get_replication_status - Replication status
  • PostgreSQL_get_subscription_info - Subscription information
  • PostgreSQL_get_wal_archiving_settings - WAL archiving settings
  • PostgreSQL_get_wal_stats - WAL statistics
  • PostgreSQL_get_write_ahead_log_analysis - WAL analysis
  • PostgreSQL_diagnose_logical_replication_lag - Replication lag diagnosis
  • PostgreSQL_logical_replication_slot_lag - Logical replication lag

</details>

📋 Table Operations & Constraints (25 tools)

<details> <summary>Click to expand Table Operations tools</summary>

  • PostgreSQL_check_constraint_violations - Constraint violations
  • PostgreSQL_constraint_violations - Data integrity issues
  • PostgreSQL_foreign_key_orphaned_references - Orphaned references
  • PostgreSQL_foreign_keys_referencing_table - Tables referencing table
  • PostgreSQL_get_constraint_violation_risks - Constraint risks
  • PostgreSQL_get_constraint_violations - Constraint violations
  • PostgreSQL_get_foreign_keys - Foreign key relationships
  • PostgreSQL_get_table_constraints - Table constraints
  • PostgreSQL_get_table_inheritance - Table inheritance
  • PostgreSQL_get_table_rules - Table rules
  • PostgreSQL_list_foreign_key_references - Foreign key references
  • PostgreSQL_list_table_rules - List table rules
  • PostgreSQL_check_table_inheritance - Table inheritance analysis
  • PostgreSQL_get_partitioned_tables - Partitioned tables info
  • PostgreSQL_get_partition_details - Partitioning details
  • PostgreSQL_get_partition_info_detailed - Detailed partition info
  • PostgreSQL_get_materialized_views - List materialized views
  • PostgreSQL_get_materialized_view_stats - Materialized view stats
  • PostgreSQL_monitor_materialized_views - Monitor materialized views
  • PostgreSQL_refresh_materialized_view - Refresh materialized view
  • PostgreSQL_get_toast_tables - TOAST tables information
  • PostgreSQL_get_sequences - All sequences with values
  • PostgreSQL_get_sequence_value - Get sequence value
  • PostgreSQL_list_sequences - List sequences in schema
  • PostgreSQL_reset_sequence - Reset sequence value

</details>

📦 Extensions & Database Objects (18 tools)

<details> <summary>Click to expand Extensions & Objects tools</summary>

  • PostgreSQL_extension_usage - Extension usage statistics
  • PostgreSQL_get_detailed_foreign_tables - Foreign tables details
  • PostgreSQL_get_event_triggers - Event triggers
  • PostgreSQL_get_event_triggers_detailed - Detailed event triggers
  • PostgreSQL_get_extension_list - Installed extensions
  • PostgreSQL_get_extension_usage_analysis - Extension usage analysis
  • PostgreSQL_get_foreign_tables - Foreign tables and wrappers
  • PostgreSQL_get_full_text_search_configs - Full-text search configs
  • PostgreSQL_get_functions - User-defined functions
  • PostgreSQL_get_text_search_configs - Text search configurations
  • PostgreSQL_get_trigger_performance_impact - Trigger performance
  • PostgreSQL_get_triggers - All triggers in database
  • PostgreSQL_list_event_triggers_detailed - Detailed event triggers
  • PostgreSQL_list_foreign_tables_detailed - Detailed foreign tables
  • PostgreSQL_list_functions - Functions in schema
  • PostgreSQL_list_triggers - Triggers on table
  • PostgreSQL_assess_trigger_performance_impact - Trigger impact
  • PostgreSQL_long_execution_triggers - Long execution triggers

</details>

⚙️ Configuration & System Info (12 tools)

<details> <summary>Click to expand Configuration tools</summary>

  • PostgreSQL_get_database_config - Database configuration
  • PostgreSQL_get_important_settings - Important settings
  • PostgreSQL_get_server_version - Server version info
  • PostgreSQL_checkpoint_activity - Checkpoint activity
  • PostgreSQL_disk_usage_forecast - Disk usage forecast
  • PostgreSQL_get_checkpoint_analysis - Checkpoint analysis
  • PostgreSQL_get_checkpoint_info - Checkpoint information
  • PostgreSQL_get_checkpoint_stats - Checkpoint statistics
  • PostgreSQL_monitor_checkpoint_efficiency - Checkpoint efficiency
  • PostgreSQL_monitor_wal_generation_rate - WAL generation rate
  • PostgreSQL_wal_segment_recycling_analysis - WAL recycling
  • PostgreSQL_check_database_encoding_collation - Encoding/collation check

</details>

🧪 Advanced Analysis & Predictions (29 tools)

<details> <summary>Click to expand Advanced Analysis tools</summary>

  • PostgreSQL_analyze_sequence_usage - Sequence usage analysis
  • PostgreSQL_get_sequence_usage_risks - Sequence exhaustion risks
  • PostgreSQL_get_sequence_usage_stats - Sequence usage statistics
  • PostgreSQL_predict_sequence_exhaustion - Predict sequence exhaustion
  • PostgreSQL_detect_table_bloat_regression - Table bloat regression
  • PostgreSQL_detect_transaction_wraparound_risk - Wraparound risk
  • PostgreSQL_diagnose_logical_replication_lag - Replication lag diagnosis
  • PostgreSQL_disk_usage_forecast - Disk usage forecasting
  • PostgreSQL_get_database_growth_trend - Database growth trends
  • PostgreSQL_get_performance_regression_indicators - Performance regression
  • PostgreSQL_get_query_error_analysis - Query error patterns
  • PostgreSQL_maintenance_window_activity - Maintenance patterns
  • PostgreSQL_memory_usage_analysis - Memory usage analysis
  • PostgreSQL_monitor_connection_patterns - Connection patterns
  • PostgreSQL_replication_lag_detailed - Detailed replication lag
  • PostgreSQL_replication_slot_activity_analysis - Slot activity
  • PostgreSQL_check_function_performance - Function performance
  • PostgreSQL_check_replication_lag_details - Replication lag details
  • PostgreSQL_analyze_buffer_utilization - Buffer utilization
  • PostgreSQL_analyze_query_plans - Query plan analysis
  • PostgreSQL_analyze_trigger_performance - Trigger performance
  • PostgreSQL_monitor_checkpoint_efficiency - Checkpoint efficiency
  • PostgreSQL_monitor_connection_patterns - Connection patterns
  • PostgreSQL_monitor_wal_generation_rate - WAL generation
  • PostgreSQL_plan_invalidation_analysis - Plan invalidation
  • PostgreSQL_query_pattern_clustering - Query pattern analysis
  • PostgreSQL_statistical_anomaly_detection - Statistical anomalies
  • PostgreSQL_temporary_objects_usage - Temporary objects
  • PostgreSQL_vacuum_freeze_age_analysis - Freeze age analysis

</details>

🧰 Quick Tool Categories

💬 Prompt Examples for AI Agents

👁️ Database Insight

"List all indexes in the public schema" "Show detailed structure of the orders table"

🚀 Performance

"What are the slowest queries?" "Analyze unused indexes"

⚙ Maintenance

"VACUUM ANALYZE the products table" "Find bloated tables in the database"

🔒 Security

"List all users and their roles" "Show active connections and privilege levels"

📚 Use Cases

✅ Health & Diagnostics

  • Full PostgreSQL system health check
  • Query and index optimization

⚙ Admin & Automation

  • AI-based schema exploration
  • SQL query building with NLP

🔐 Security & Auditing

  • Role auditing, connection analysis
  • Secure query validation and permission check

🗞️ License

This project is licensed under the MIT License – see the LICENSE file for details.

⭐ Contribute & Support

If you find this useful, please:

  • ⭐ Star the repo
  • 🍝 Fork it
  • 🛠️ Submit issues or PRs

🧠 Let’s build smarter PostgreSQL automation – one prompt at a time.

🔍 GitHub Search Tags

#PostgreSQL #MCP #AI_Database_Tools #Claude #Query_Optimizer #Database_Health_Check #Python_PostgreSQL #DevOps_AI #Database_Monitoring #OpenSource

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