Best Query AI Skills & MCP Servers

Browse and query the U.S. Energy Information Administration API v2 — electricity, petroleum, natural gas, coal, forecasts, and more via MCP. STDIO or Streamable HTTP.

MCP server for database connectivity. Multi-DB (PostgreSQL, MySQL, SQLite), connection management, schema introspection, query execution with token-optimized responses, rollback, history, elicitation for destructive ops, and prepared statements. Zero conf

MCP server that gives AI agents (Claude, Cursor, Copilot) deep understanding of your codebase patterns, conventions, and architecture. Query patterns, security boundaries, call graphs in real-time.

GARL Protocol MCP Server — cryptographic verification for AI agent actions. 28 named tools: submit signed Action Receipts (v0.1), query multi-dimensional Trust Vector, issue/verify/revoke capability tokens (JWT-shaped + ECDSA-secp256k1), Capability Gate p

MCP security trust layer. Scan packages, inspect repo MCP dependencies, generate Policy Gate setup, check exposure, and query abuse data.

The geospatial toolkit for AI agents — query, convert, and verify spatial data with zero config. 6 tools for bounding boxes, coordinate projection, H3 indexing, OpenStreetMap queries, and shareable map verification links.

MCP server for Alibaba Cloud Domain API - Check domain availability, query domain details, list domains, and create registration orders

GraphQL-style codebase intelligence CLI — index, query, and analyze any codebase

MCP server for Wiz cloud security platform — query vulnerability findings by repo and severity

MCP server for querying Polymarket data via The Graph subgraphs — supports stdio and SSE transports

MCP Server for querying and downloading Chinese listed companies' annual reports from CNINFO (巨潮资讯网)

Zero-dependency Chrome DevTools Protocol MCP server for AI agents. 73 typed tools, Application state inspection, per-tab daemons, security hardened, contextual hints, query-filtered snapshots.

CLI & MCP server for KRX (Korea Exchange) Open API — query Korean stock market data (KOSPI, KOSDAQ, ETF, bonds, derivatives) from terminal or AI agents

Graph-powered code intelligence for AI agents. Index any codebase, query via MCP or CLI.

Florentine.ai MCP server – query MongoDB & MySQL databases in natural language

MCP server for interacting with Kusto databases

MCP server for Google Search Console - query search analytics, inspect URLs, analyze keywords, and more

Leapable — Context engineering MCP server. Query expert knowledge corpora, manage your data, and search with full provenance. One-line install: npx leapable-mcp

MCP server that exposes the Langfuse REST API as tools — query traces, observations, sessions, scores, prompts, datasets, and metrics from any MCP client.

MCP server for querying the WildFly management model graph

A Model Context Protocol (MCP) server for powerful CSV file operations - read, write, query, transform, analyze CSV data with formulas and charts.

PostgreSQL MCP server - query, schema introspection, explain, and health checks for AI assistants

DocBrain MCP server — query your documentation from Claude Code, Cursor, and any MCP-compatible editor

Burningbros BBPM MCP — Model Context Protocol server exposing the BB Project Management API to Claude. Create issues, assign tasks, comment, and query the board from a chat prompt.