Koskamo

mcp-server-pgvector

This MCP server provides LLM agents with specialized tools for interacting with pgvector-backed PostgreSQL tables. It enables similarity search, hybrid search combining vector and full-text capabilities, upserts for embeddings, and management of HNSW/IVFFlat indexes. Unlike generic Postgres servers, it handles nearest-neighbor search and distance metrics directly without requiring the model to write raw SQL.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

mcp-server-pgvector logo, by mittalpkCommunity listingLocal stdioSource reviewed; not executedPublished by mittalpk
Vendor documentation

What you can do with it

  • Perform k-NN similarity search over vector columns with metadata filters
  • Execute hybrid search blending vector similarity with full-text search
  • Create and manage HNSW or IVFFlat indexes for approximate nearest neighbor search
  • Discover vector tables and describe their columns and indexes

Source and maintenance

Community listingRegistry 0.1.0
mcp-registry: io.github.mittalpk/pgvector@0.1.0Source repository
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

mcp-server-pgvector 0.1.0

pypi
mcp-server-pgvector package definition
{
  "version": "0.1.0",
  "transport": "stdio",
  "identifier": "mcp-server-pgvector",
  "registryType": "pypi",
  "environmentVariables": [
    {
      "name": "DATABASE_URL",
      "format": "string",
      "isRequired": true,
      "description": "PostgreSQL connection string, e.g. postgresql://user:password@host:5432/dbname"
    },
    {
      "name": "MCP_PGVECTOR_READ_ONLY",
      "format": "string",
      "description": "Set to 'true' to disable upsert_embedding and create_vector_index"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "mcp-server-pgvector": {
      "command": "uvx",
      "args": [
        "mcp-server-pgvector==0.1.0"
      ],
      "env": {
        "DATABASE_URL": "<YOUR_DATABASE_URL>",
        "MCP_PGVECTOR_READ_ONLY": "<YOUR_MCP_PGVECTOR_READ_ONLY>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "mcp-server-pgvector": {
      "command": "uvx",
      "args": [
        "mcp-server-pgvector==0.1.0"
      ],
      "env": {
        "DATABASE_URL": "<YOUR_DATABASE_URL>",
        "MCP_PGVECTOR_READ_ONLY": "<YOUR_MCP_PGVECTOR_READ_ONLY>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "mcp-server-pgvector": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-server-pgvector==0.1.0"
      ],
      "env": {
        "DATABASE_URL": "<YOUR_DATABASE_URL>",
        "MCP_PGVECTOR_READ_ONLY": "<YOUR_MCP_PGVECTOR_READ_ONLY>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "mcp-server-pgvector": {
      "command": "uvx",
      "args": [
        "mcp-server-pgvector==0.1.0"
      ],
      "env": {
        "DATABASE_URL": "<YOUR_DATABASE_URL>",
        "MCP_PGVECTOR_READ_ONLY": "<YOUR_MCP_PGVECTOR_READ_ONLY>"
      }
    }
  }
}

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