"National Rail" matching MCP servers:

Policy-gated agent spend with signed receipts and rail-extract audit: a fail-closed gate issues a COSE receipt for every allowed payment, and the audit reconciles those receipts against a rail extract so a settlement with no receipt is named rather than assumed. It settles on a mock rail, holding no wallet and signing no transaction.

MCP server for querying Brazilian electronic service invoices (NFSe) from the national portal. Allows AI agents to authenticate with digital certificates and search, detail, and download PDFs of issued NFSe.

The company registry MCP: company data for AI agents, any country. One MCP server and REST API over national business registries — Norway (Brønnøysundregistrene / Enhetsregisteret, lookup by organisasjonsnummer/orgnr, VAT status) and the United Kingdom (Companies House, lookup by company number, accounts and confirmation-statement deadlines). Five tools: lookup_company, search_company, company_dea

Connects Claude to the U.S. National Library of Medicine MeSH APIs to search and retrieve medical authority data, descriptors, and qualifiers. It enables library and metadata staff to perform subject analysis and confirm terminology within an AI-assisted cataloging workflow.

Search and harvest Korean academic literature and book bibliography metadata from the National Library of Korea Seoji OpenAPI via MCP or CLI.

MCP server to query UK higher-education open data including National Student Survey results, student outcomes, and graduate earnings. Data is downloaded locally from official sources and compared against benchmarks.

MCP server for the Korean National Assembly Open API, enabling querying of bills, members, votes, committees, and more via natural language.

MCP server providing official US economic data including CPI inflation, famous prices, national debt, and Treasury interest rates. Enables AI agents to query historical and latest economic statistics via natural language.

A read-only MCP server that lets Claude Desktop interact with Apple Mail on macOS via AppleScript. It enables listing mailboxes, searching emails, and reading email content without making network calls.

Enables querying the Polish National Health Fund (NFZ) public API for medical waiting lists and service dictionary, allowing AI to compare wait times and find providers.

An MCP server that connects AI chatbots directly to data.gouv.fr, France’s national open data platform. It allows users to search, explore, and analyze thousands of public datasets simply by asking questions in natural language.

Enables querying authoritative product data from GS1 Brasil's Verified by GS1 API via GTIN, including brand, description, classifications, images, weights, dimensions, and licensee details, with support for national and international bases and batch enrichment.

A modular suite of MCP servers for Audiokinetic Wwise, enabling AI agents to browse, edit, audition, profile, and build Wwise projects through the Wwise Authoring API.

Search and collect data from the National Assembly Library of Korea's OpenAPI (21 DB types) and export to xlsx/csv/json/sqlite.

Enables reading and searching personal Outlook/Hotmail mail, filing into folders, deleting, and unsubscribing from newsletters via Microsoft Graph.

Provides AI assistants with programmatic access to the National Library of Sweden's digitized historical newspapers, enabling full-text search, filtering, timelines, and image retrieval across over 2.2 million pages.

Taiwan's first public Model Context Protocol server for National Health Insurance data — rejection codes, ICD-10 mappings, audit indicators, semantic wiki search. Powered by OPDSTAR.

Provides Japanese business day calculations: add or subtract business days, count between dates, check whether a date is a business day, and reverse-calculate deadlines. Handles national holidays and year-end periods fully offline with no API keys required.

Provides Japanese national holidays, wareki (era) conversion, and date information. Works fully offline with no API keys required.

Enables searching and retrieving course listings, departments, and syllabi from National Chengchi University's public course API using natural language.