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"How to perform SELECT queries in PostgreSQL" matching MCP servers:

  • gmail-mcp-send-to-list-only

    bajor
    F
    license
    A
    quality
    A
    maintenance
    An MCP server that sends plain-text Gmail messages only to a predefined allowlist, using generated recipient IDs instead of email addresses to enforce security.
    2
    1

  • vaporcheck

    cdmx-in
    A
    license
    A
    quality
    B
    maintenance
    Blocks AI coding assistants from installing non-existent packages and accessing non-existent files.
    1
    Apache 2.0

  • Cloudflare Remote PostgreSQL

    technophile-04
    A
    license
    -
    quality
    D
    maintenance
    Enables chatting with PostgreSQL databases through secure GitHub OAuth authentication, supporting read operations for all users and write operations for privileged users. Deployable as a production-ready remote MCP server on Cloudflare Workers with automatic schema discovery and SQL injection protection.
    1
    MIT

  • built-in-authorization-server

    rinormaloku
    F
    license
    -
    quality
    C
    maintenance
    An MCP authorization server implementing OAuth2/OIDC flows, supporting dynamic client registration, PKCE, consent screens, and client ID metadata documents for MCP authorization.

  • PostgreSQL Read-Only MCP

    currentspace
    F
    license
    -
    quality
    D
    maintenance
    A secure MCP server that enables querying PostgreSQL databases through an SSH tunnel with enforced read-only access, connection pooling, and comprehensive data exploration tools.

  • pgmcp

    sbamin
    A
    license
    -
    quality
    C
    maintenance
    Enables safe, read-only querying of PostgreSQL databases with defense-in-depth protections including single-statement SELECT guard, row caps, and per-identity audit logging.
    1
    MIT

  • authentik-mcp

    cdmx-in
    A
    license
    -
    quality
    D
    maintenance
    Authentik MCP provides seamless integration with Authentik's API, supporting both full-featured and diagnostic modes. These enable secure, automated user, group, and system management through MCP-compatible tools.
    17
    MIT

  • mcp-postgres-guard

    vladshykanov
    F
    license
    A
    quality
    B
    maintenance
    An MCP server that enables AI agents to securely interact with PostgreSQL databases with least-privilege scopes, PII masking, and human approval for writes.
    4

  • postgres-mcp-hardened

    Eszetael
    A
    license
    A
    quality
    A
    maintenance
    A drop-in Model Context Protocol (MCP) server that lets an AI agent query PostgreSQL — read-only, enforced at the database level, with real SQL validation, timeouts, cost limits, OAuth 2.1, and an audit trail.
    10
    MIT

  • SQL Query Tools MCP Server

    negrip
    F
    license
    A
    quality
    D
    maintenance
    MCP server for connecting to SQL Server in readonly mode. Allows any MCP client to explore the schema and run SELECT queries against a SQL Server database.
    6

  • schema-guard-mcp

    yagaMI-Reverse
    F
    license
    A
    quality
    C
    maintenance
    Audits PostgreSQL/Supabase schemas for security issues like missing RLS, permissive policies, and sensitive data exposure during AI conversations.
    3

  • mcp-ip2location

    eweley95
    A
    license
    A
    quality
    C
    maintenance
    Enables AI assistants to perform IP geolocation, proxy detection, and domain WHOIS lookups using IP2Location.io and IP2WHOIS data.
    5
    MIT

  • Dangerous MCP

    ShaojieJiang
    A
    license
    A
    quality
    C
    maintenance
    A demonstration server that reveals security risks by accessing sensitive environment variables, illustrating how MCP tools can potentially leak user data without explicit consent.
    1
    8
    MIT

  • ScanRook MCP Server

    devinshawntripp
    A
    license
    A
    quality
    D
    maintenance
    Enables AI assistants to perform vulnerability scanning on Docker/OCI images, check CVE details, analyze licenses, and compare scan results via ScanRook.
    8
    9
    MIT

  • mcp-sql-server

    batuhansutculer
    A
    license
    A
    quality
    B
    maintenance
    An MCP server that lets Claude query a mock business SQL database in plain language through read-only tools, with server-side guardrails that enforce SELECT-only queries and block access to sensitive payment data.
    3
    MIT

  • osint-mcp-server

    badchars
    A
    license
    A
    quality
    C
    maintenance
    Provides AI agents with 37 OSINT tools and 12 data sources to perform unified reconnaissance, domain analysis, and attack surface mapping. It enables agents to query, correlate, and reason across platforms like Shodan, VirusTotal, and Censys in parallel.
    37
    681
    44
    MIT

  • maltego-mcp

    lidless-labs
    A
    license
    B
    quality
    A
    maintenance
    Enables LLMs to author Maltego .mtgx graph files and perform OSINT lookups, with an optional transform layer for pivoting into MISP, TheHive, Cortex, and MITRE ATT\&CK directly in Maltego Desktop.
    13
    32
    7
    MIT