Popular MCP Servers

Provides AI-ready access to US/UK nonprofit data and OSS vulnerability intelligence via MCP, with 10 tools and no API key required.

An MCP server for the Library of Congress that enables searching scanned American newspaper pages, searching catalogue items by media type, reading individual records, and listing digital collections, all without requiring an API key or account.

Enables natural language conversations with Spain's electrical grid data through Claude, providing real-time access to electricity demand, generation, prices, and emissions data from Red Eléctrica de España (REE).

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

Enables AI agents to semantically explore and analyze the Italian government data catalog (schema.gov.it), including ontologies, vocabularies, datasets, and data quality checks.

Enables AI agents to verify and search business entities across US state and international company registries, providing real-time confirmation of legal existence, status, and filings.

提供全球238个国家/地区的进出口贸易数据查询，支持按企业名称、产品关键字、HS编码等多维度联合搜索。

Gives AI assistants access to SEC filings, BLS employment, Census demographics, and SBA lending data via natural language queries.

Provides verified UK company lookup and number validation for AI agents using official Companies House data. Enables lookup of registered details by number, validation of company number format, and search by company name.

Enables natural language queries about UK postcodes and vehicles, including flood risk, crime rate, broadband coverage, property prices, MOT history, and ULEZ compliance.

European financial data for AI agents — ECB interest rates, Eurostat inflation, GDP and unemployment by country. Zero API key needed.

Enables AI clients to search and analyze SEC filings, financial statements, insider trades, and institutional holdings through natural language tools.

Bid/no-bid intelligence for EU public tenders, built on 592,000 real TED contract awards: competition density, price corridor, SME fit and beachhead ranking. Free guest access; an API key unlocks the live board.

An MCP server for querying Historic Environment Records across England and Scotland, enabling searches of listed buildings, monuments, and heritage sites via ArcGIS REST APIs.

Enables AI to search and retrieve detailed information from U.S. government datasets, including GAO reports, oversight recommendations, congressional bills, and more, with OData filtering and faceted search.

MCP server providing AI assistants access to Polish public registries (KRS, CEIDG) and statistical data (GUS BDL) for querying companies, sole proprietorships, and regional statistics.

A MCP server exposing 95 US government open-data tools as agent-callable tools, enabling direct access to official APIs for environmental, financial, licensing, and infrastructure data with honest run-status reporting.

Search and analyze U.S. federal government contracts and opportunities from SAM.gov. Tools for keyword search, contract details, competitive analysis, and capability statement drafting — built for AI agents via x402 USDC micropayments.

Enables AI agents to access Brazilian public data including company registry and official sanction lists via MCP tools, with pay-per-call via USDC.

Structured business intelligence for AI agents. 5.5M verified entities across 34 countries, 40.3M BORME mercantile acts, EU VAT validation, GLEIF, healthcare registries. 20 tools.