"Best free MCP for React app with MySQL/MariaDB database" matching MCP servers:

Enables natural-language spatial analysis of transmission lines and wildlife/public access lands using Claude, MCP, and DuckDB. Users can ask questions about intersections, distances, buffers, and other GIS operations without writing SQL.

An MCP server that provides current weather, hourly and 7-day forecasts, and air quality data for any city or zip code, with an interactive React UI and support for both stdio and HTTP transports.

Enables MCP-capable assistants to control an open ArcGIS Pro project locally over TCP 127.0.0.1, with 68 commands and 167 tools for layers, editing, symbology, layouts, geoprocessing, and arcpy execution.

This MCP server provides accessibility risk assessment for Seoul subway trips, considering wheelchair, stroller, and other mobility constraints. It offers tools to check station facilities, elevator status, and calculates risk scores for routes based on a deterministic engine.

Enables interactive kepler.gl maps to render inside MCP host chats and lets agents control them through map tools such as loading data, adding layers, and switching basemaps.

Enables users to search for locations, businesses, and points of interest on an interactive OpenStreetMap map within ChatGPT conversations.

Search for local businesses worldwide. Structured data optimized for AI agents. • Search Millions of businesses over 49 countries (Europe, Northamerica, Southamerica, Asia, Oceania) • Quality & demand scoring for every business • Ranking based on real user click-through data • No API key needed, free access • Rate limit: 500 requests/hour per IP

Enables users to check weather conditions using Open-Meteo's free API with GitHub OAuth authentication and personalized location management. Users can save custom location labels (like 'home' or 'office') and query weather using these convenient shortcuts.

Enables interactive GSI map viewing with layer switching, location search, and tile info retrieval within chat.

An MCP app that displays interactive Paris real estate price statistics per arrondissement inside Claude, with map, comparison, and address search.

Enables management of ride-sharing operations including searching for available drivers, calculating dynamic fares, creating and tracking trips, and monitoring driver statistics in real-time using Supabase as the backend.

Search for local businesses worldwide. Structured data optimized for AI agents. • Search Millions of businesses over 49 countries (Europe, Northamerica, Southamerica, Asia, Oceania) • Quality & demand scoring for every business • Ranking based on real user click-through data • No API key needed, free access • Rate limit: 500 requests/hour per IP

Enables AI assistants to access real-time Transport for London data, including tube/bus arrivals, line status, journey planning, and disruptions.

Provides a suite of tools for location retrieval and multi-modal route planning within China using the Baidu Maps API. It enables AI agents to perform address-to-coordinate conversions, nearby place searches, and calculate directions for driving, transit, walking, and cycling.

Enables AI assistants to retrieve current weather conditions and forecasts for specified locations by geocoding places and pulling data from Open-Meteo, with optional natural-language summaries via Groq.

Enables AI assistants to retrieve current weather conditions and multi-day forecasts for any location, with optional natural-language summaries.

Bike, e-bike, kick scooter, motorcycle, wheelchair and walking routes across Europe, with up to three variants (safe, balanced, fast) and safety indicators such as cycle lane, main road and unpaved shares.

Enables end-to-end ride-booking workflows, including pickup and destination selection, ride estimates, solo or ShareMatch shared rides, driver tracking with live ETAs, trip management, payments, receipts, saved places, and safety/support tools.

Provides custom tools to the Gemini model for spatially grounding responses using Google Maps Platform APIs (Places, Routes, Elevation).

WHOIS/RDAP domain lookup, IP geolocation and Punycode conversion. 1400+ TLDs including IDN. Public remote server, no API key.