"A server to manage API rate limiting based on requests per minute" matching MCP connectors:

Official MCP: continuous supply-chain risk monitoring and early warning, not a one-off report. Register and create a key at https://supplygraph.ai/zk_chat_os/dashboard/dashboard.html — if you are not signed in you will be redirected to login; new users can register there. After login, open A2A / MCP and click Create Production Key or Create Sandbox Key. Send the header as Bearer <api_key> (one Bearer prefix, then the raw key). Optional for initialize and tools/list; required for tools/call.

IPStack MCP Adapter turns IPStack's REST APIs into Model Context Protocol tools so any MCP-compatible client can call them directly in conversation. The first release ships IPStack IP geolocation and security lookups (single IP, caller's IP, and bulk). Additional APILayer services are added by registering them in a single config file, so the catalog grows without client-side changes.

AI-readable directory + commerce layer: 3,500+ SEA businesses, plus products from verified stores.

City geocoding and timezone resolution for birth data, for AI agents, one API key.

Search thousands of verified US local service providers across 10 home-services trades, including crawl space repair, floor coating, radon mitigation, commercial electrical, and laundry services. Returns ratings, services, pricing, descriptions, and profile links. Every result passes a completeness gate, so listings are never half-empty.

US crime scores, incidents, neighborhood demographics, rent data, and offender search by address.

Sailing passage planner for any coast, with high-precision tides on the French Atlantic.

MCP server for the Philippine Standard Geographic Code (PSGC) API. Gives AI agents structured access to the full PH geographic hierarchy - regions, provinces, cities, municipalities, and barangays.

Shared memory for AI agents. One address per fact, one signature you check. No key to read.

Generate IDs, QR codes, and hashes, encode values, geolocate IPs, plus gated host diagnostics.

Swiss weather data for AI assistants — forecasts, measurements, stations, pollen.

Lviv public transport MCP: stops, timetables, routes, and live vehicle positions. No API key.

Convert latitude/longitude to the deepest administrative loc_id plus its full parent chain.

Free solar & home energy tools: estimates, incentives by ZIP, scores, installer routing.

A loc_id to its bounding box, centroid, and polygon, with its name and admin level.

The discovery engine for the real world: byways, lookouts, places, drives. Zero hallucinations.

Reverse geocode latitude/longitude to loc_id; resolve loc_ids to boundaries, centroids, hierarchy.

Geospatial MCP server for earthquake, tsunami, volcano, disaster, and FX data queries.

31 tools: geocoding, weather, FX, SEC, DNS, more. Missing data named, unbilled. $0.001-$0.003/call.

Analyse cycling-event GPX routes and build bounded, practical ride-fuelling carry plans.