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20 Best PostgreSQL MCP Servers: compared and ranked, September 2026Ranked from 1,109 matching servers on stars, growth, downloads and maintenance. Updated .

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  • F
    license
    Not graded
    quality
    B
    maintenance
    A collection of MCP servers for database management and Gmail integration, allowing AI agents to perform database queries and email operations.
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  • A
    license
    A
    quality
    C
    maintenance
    Reads and searches local email archives (.mbox or .eml) with full MIME parsing, enabling queries about senders, subjects, dates, and bodies while keeping all data on your machine.
    3
    63
    MIT
  • A
    license
    A
    quality
    C
    maintenance
    An MCP server that exposes a local notmuch email database to an LLM client such as Claude. It is read-first: searching, reading, and understanding mail is always available; writing anything (drafts, tags, exported files) requires an explicit opt-in flag and is confined to clearly bounded locations.
    13
    MIT
  • F
    license
    A
    quality
    C
    maintenance
    Enables AI assistants to read recent emails and fetch full email content from an IMAP inbox, allowing natural language queries about email summaries.
    3
    -
  • A
    license
    B
    quality
    B
    maintenance
    Enables MCP-compatible AI clients to read, search, and send Smailr emails through natural language, with tools for mailboxes, attachments, contacts, folders, labels, and account information.
    23
    1
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    A plugin-based MCP server that securely exposes custom tools to AI agents, keeping sensitive information hidden while enabling operations like email whitelisting through pluggable plugins.
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    A production-style MCP server exposing six business tools (web search, database, CRM, email, calendar, analytics) to AI clients via a secure, authenticated interface, with mock mode and a reference agent client.
    MIT
  • A
    license
    Not graded
    quality
    A
    maintenance
    A self-hosted mail client MCP server that indexes email in PostgreSQL, enabling AI agents to search, move, mark, delete, and draft messages with bulk operations and attachment text extraction via OCR.
    MIT
  • A
    license
    Not graded
    quality
    D
    maintenance
    An MCP server that integrates with the Beehiiv newsletter platform to retrieve subscriber information with filtering, pagination, and optional expanded data.
    43
    MIT
  • A
    license
    Not graded
    quality
    D
    maintenance
    Enables querying local meeting notes, calendar events, email metadata, and daily digests from Imprint's database via natural language through Claude Desktop and other MCP clients.
    28
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    Provides read-only access to Apple Mail.app emails, accounts, and folders by directly reading the local SQLite database.
    1
    MIT
  • A
    license
    Not graded
    quality
    D
    maintenance
    A read-only MCP server for Apple Mail on macOS that enables searching and reading emails directly from the local SQLite database, with fast SQL-level filtering and pagination.
    1
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    Synchronizes multiple Gmail and Google Workspace accounts into a local SQLite database and exposes search and mailbox operations through a stdio MCP interface.
    MIT
  • A
    license
    Not graded
    quality
    D
    maintenance
    Enables LLMs to access candidate information including resume, LinkedIn, GitHub, and contact via email.
    32
    81
    MIT
  • F
    license
    Not graded
    quality
    D
    maintenance
    Enables AI-powered email management through Gmail, including search, send, drafts, labels, and an intelligent agent with human approval workflow and optional customer database integration.
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