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mirenqinggege

postgres-mcp

Server Configuration

Describes the environment variables required to run the server.

NameRequiredDescriptionDefault
DATABASE_URIYesPostgres database connection URI
OPENAI_API_KEYNoOpenAI API key for experimental index tuning by LLM

Capabilities

Features and capabilities supported by this server

CapabilityDetails
tools
{
  "listChanged": false
}
prompts
{
  "listChanged": false
}
resources
{
  "subscribe": false,
  "listChanged": false
}
experimental
{}

Tools

Functions exposed to the LLM to take actions

NameDescription
list_schemasA

List all schemas in the database

list_objectsB

List objects in a schema

get_object_detailsC

Show detailed information about a database object

explain_queryA

Explains the execution plan for a SQL query, showing how the database will execute it and provides detailed cost estimates.

analyze_workload_indexesA

Analyze frequently executed queries in the database and recommend optimal indexes

analyze_query_indexesA

Analyze a list of (up to 10) SQL queries and recommend optimal indexes

analyze_db_healthA

Analyzes database health. Here are the available health checks:

  • index - checks for invalid, duplicate, and bloated indexes

  • connection - checks the number of connection and their utilization

  • vacuum - checks vacuum health for transaction id wraparound

  • sequence - checks sequences at risk of exceeding their maximum value

  • replication - checks replication health including lag and slots

  • buffer - checks for buffer cache hit rates for indexes and tables

  • constraint - checks for invalid constraints

  • all - runs all checks You can optionally specify a single health check or a comma-separated list of health checks. The default is 'all' checks.

get_top_queriesA

Reports the slowest or most resource-intensive queries using data from the 'pg_stat_statements' extension.

execute_sqlC

Execute any SQL query

execute_sql_fileA

Execute a SQL file containing migration scripts or DDL statements. The entire file is executed as a single transaction - all changes are rolled back if any statement fails. Only available in unrestricted access mode.

Prompts

Interactive templates invoked by user choice

NameDescription

No prompts

Resources

Contextual data attached and managed by the client

NameDescription

No resources

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