Skip to content

MCPBytebase

DBHub

Zero-dependency, token-efficient database MCP server.

Categories
MCPData Ops
Pricing
FREE
Platforms
CLIWebAPI
Models
Model-agnostic
Verified
Jun 21, 2026

An open-source Model Context Protocol server that lets AI coding assistants connect to and query databases through one unified gateway. DBHub deliberately exposes only two tools — execute_sql (with transaction support and safety controls) and search_objects (schema/table/column exploration) — to keep the agent's context window lean. It supports Postgres, MySQL, SQL Server, MariaDB, and SQLite, works with clients like Claude Desktop, Claude Code, Cursor, VS Code, and Copilot CLI, and includes a built-in web interface for running queries and viewing request traces.

Pros & cons

  • Free and MIT-licensed
  • Token-efficient: only two MCP tools
  • Five databases via one gateway
  • Built-in web UI for queries + traces
  • SQL databases only (no NoSQL)
  • Minimal tool surface by design
  • Self-run; no managed hosting

Tags

View all MCP
  • View Supabase MCP details
    MCPFREEOSS

    Supabase MCP

    Supabase

    Postgres + auth + edge functions from inside the agent.

    MCP server that exposes Supabase project ops — list tables, apply migrations, deploy edge functions, fetch advisors. Removes a context-switch cliff between code and database.

    Manages DB, auth, storage, edge functions
    Stored prompt-injection data-leak risk
    • mcp
    • database
    • postgres
    • open-source
  • View Composio details
    MCPFREEMIUMOpen core

    Composio

    Composio

    1000+ authenticated toolkits for AI agents, via MCP or API.

    Tool layer that gives AI agents secure, managed access to 1000+ toolkits and 20,000+ tools across SaaS apps, exposed via MCP or direct APIs. It handles authentication, tool search, and context management, and its MCP Gateway hands each team a managed endpoint to paste into Claude, Cursor, or ChatGPT. The core is MIT-licensed; a free tier covers 20K tool calls per month.

    1000+ managed toolkits
    Cloud-managed auth means some lock-in
    • mcp
    • tool-use
    • integrations
    • agents
    • +1
  • View Smithery details
    MCPFREEMIUM

    Smithery

    Smithery

    Registry and hosting platform for Model Context Protocol servers.

    A central hub for the MCP ecosystem: browse, install, and configure thousands of community-built MCP servers from one place, or deploy your own to Smithery's infrastructure and access it remotely. The CLI installs and manages servers without hand-editing JSON config, and the hosted tier adds managed OAuth and persistent connections so agents get authenticated tool access. Lists over 6,000 servers across developer tools, data connectors, and productivity integrations.

    6,000+ server registry
    Only the CLI is open-source (AGPL)
    • mcp
    • registry
    • tool-use
    • agents
    • +1