"An example MCP for client prototyping in a business context with a public API call" matching MCP servers:

mcp-server-public-transport is an open-source, locally hosted server providing an interface for accessing public transport data across Europe.

MCP server that exposes Google Business Profile / Google My Business REST APIs as MCP tools, returning Google API responses directly without added workflow or business logic.

Enables retrieval and filtering of Indiana Bureau of Motor Vehicles (BMV) locations, including branches, self-service kiosks, and motorcycle training sites.

Enables searching hiking trails from AllTrails.com via MCP, with smart caching to avoid rate limiting.

Enables assembling local business prospect lists from Google Maps searches by category and place, returning one row per business with website, phone, address, coordinates, categories, rating, review count, and weekly hours. Supports filters for minimum rating, review count, website, and phone, plus URL and category-plus-location queries, deduplication across searches, and Clay-ready output via Apify.

Provides Estonian public transport timetables, trip planning, stop search, and real-time vehicle tracking.

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

An MCP service for interacting with Transport NSW's API that enables users to find transport stops around locations and retrieve information about transport alerts and disruptions.

Provides read-only query tools over OpenStreetMap data in PostGIS, enabling natural language queries for features, categories, and spatial analysis.

Enables access to Google Maps business data including search, reviews, photos, and geocoding. Supports searching businesses by location, area, or coordinates, retrieving detailed business information, reviews, and performing reverse geocoding operations.

Connects a Google Business Profile to AI assistants like Claude, ChatGPT, Cursor, and Claude Code so users can query local search and Maps performance, track keywords, and monitor reviews through natural language. It also supports write actions for replying to reviews, publishing local posts, and managing photos and menus, with per-account read-only or read-and-write controls.

MCP server providing access to Russian Railways ticket API, enabling train search, station lookup, and trip information.

Enables natural-language queries about live Belgian trains, metro, tram and bus services — departures, arrivals, A-to-B journey planning, disruptions and train composition — from Claude or any MCP client speaking Streamable HTTP. It runs remotely on Cloudflare Workers, needs no accounts, and stores no personal data.

Enables MCP clients to manage business locations, citations, reviews, posts, and local analytics across dozens of directories, maps, and search engines.

Provides weather forecasts and alerts for US locations via the National Weather Service API, enabling AI assistants to deliver real-time weather information.

Provides real-time access to Israeli emergency alerts from the official Pikud Haoref (Home Front Command) API. Enables AI assistants to check current alerts, retrieve alert history with intelligent city filtering, and monitor emergency notifications including rocket alerts, aerial intrusions, and earthquakes.

Enables looking up approximate location of public or specific IP addresses, returning country, city, ISP, and coordinates via ip-api.com.

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

MCP server that exposes US public safety facility data (police, fire, EMS, hospitals) as tools for AI assistants, enabling lookups by address, coordinates, or filters.

Provides AI assistants with live information about who is currently in space and the location of the ISS, using the free Open Notify API.