"Multi-user Google Calendar and Sheets MCP server with OAuth token authentication" matching MCP servers:

Enables AI agents to query China's statutory public holidays and makeup-workday schedules, and convert solar dates to lunar dates with zodiac and ganzhi details.

Enables one-click OAuth authorization to access Qichacha legal data (regulations and judicial cases) via MCP within DeepSeek Harness, with automatic token refresh and dynamic server mounting.

MCP server providing JAKIM Hijri calendar data and tools for lunar months and Islamic events in Malaysia.

Enables AI assistants to validate and standardize US addresses using the official USPS Address Validation API with secure OAuth2 authentication.

MCP server for Swiss school and public holidays across all 26 cantons, with differentiation by school type. No API key required.

Enables querying of Hong Kong government data on elderly community care services, such as waiting times and applicant counts.

MCP server for answering questions about official statistics from a single publication URL, with tools to check query scope, retrieve overview, text, data files, and search.

Provides access to Hong Kong climate and weather data from the Hong Kong Observatory, including current conditions, forecasts, warnings, tides, and more.

Enables Claude to search and retrieve patent data from EPO OPS and Google Patents via natural language, supporting patent search, details, claims, and family information with OAuth authentication.

MCP server for GLEIF LEI (Legal Entity Identifier) database access. Look up, validate, and search legal entities and their relationships in the global LEI system.

MCP server for UNESCO UIS statistics enabling search of indicators, listing of geographical units, and data retrieval with provenance and license compliance.

One-call Australian health and welfare data plumbing via AIHW — cited responses for practical analysis, not a data broker.

An MCP server that exposes the U.S. Energy Information Administration (EIA) Open Data API, enabling LLMs to browse and query energy data across 17 datasets with generic, composable tools.

7M+ real estate transactions from Poland's RCN registry. Search, compare, and analyze prices

An MCP server that exposes real US flood insurance claims data from FEMA's OpenFEMA API, providing tools for claim lookup, filtered search, aggregate stats, and flood event summaries.

Enables AI agents to perform official Brazilian trademark searches on INPI's public pePI system, including lookup by process number, mark text, owner portfolio, or Vienna figurative code, with full process details and pagination. Each user authenticates with their own pePI login, with results returned as Markdown and structured JSON plus optional local caching and HTML reports.

An MCP server that provides access to Japan's central and municipal subsidies, covering over 20,000 municipal grants not exposed by official APIs, with tools for search, comparison, citation verification, and practitioner referrals.

Enables AI assistants to check passport visa, entry, and transit requirements for a country pair using official government sources and a deep link to EasyOnward.

MCP server for the NIST National Vulnerability Database — lets AI assistants search CVEs by keyword, severity, CPE, CWE, KEV status, and date range via natural language.

Provides immigration eligibility intelligence, enabling AI assistants to match user profiles to visas, compare pathways, and get country overviews using Transita's API.