"The most widely used models" matching MCP servers:

Enables read-only access to the UK Companies House register, letting models answer questions about company status, ownership, filings, charges, and officers via seven purpose-built tools.

Provides access to Danish energy data from Energinet, including real-time electricity spot prices, CO2 emissions, and production mix. It enables users to monitor grid status and identify the most cost-effective hours for energy-intensive tasks.

Enables read-only lookups of state septic licensing agencies with their official verification URLs, searches of license-matched septic contractors by state, city, county, zip or service, and retrieval of sourced septic cost guides. Every response carries a thesepticguide.com source link, requires no API key, and reports its snapshot date.

An MCP server connecting AI models to the Swiss Federal Parliament via the Curia Vista OData API, enabling queries of motions, votes, members, sessions, and debate transcripts without authentication.

A bridge between large language models and Dutch parliamentary data, providing access to Dutch parliamentary documents, debates, and member information from the Tweede Kamer.

Enables querying official Brazilian Central Bank PTAX dollar closing exchange rates by specific date, date range, or most recent available quotation.

Enables users to resolve historical US land and jurisdiction questions: which county held a given spot on a specific date, where a federal land description (PLSS) falls on the ground, and which National Archives series and file hold the case behind a land patent. All lookups are read-only and can be used alongside archive-search tools to route records requests to the right office.

MCP server for querying Chilean electronic invoicing data via the IntegraDTE API. Enables language models to retrieve tax documents, folios, statistics, and more.

Enables AI assistants to query Brazilian public data from IBGE, Banco Central, INMET, and Câmara dos Deputados, including population, economic indicators, weather observations, and legislative information, without requiring API keys for most tools.

Provides a structured interface to the Japanese National Diet Library's parliamentary proceedings API, allowing AI models to search and retrieve Diet meeting records and speeches.

Enables AI agents to query Türkiye-specific data and logic without API keys: official central-bank exchange rates and currency conversion, live AFAD/Kandilli earthquakes, the official holiday calendar with business-day math, IBAN/TCKN/VKN validation, province and district lookup, prayer times, weather forecasts, plus Turkish-correct text casing and amounts written out in words. All 17 tools are read-only, with most working fully offline.

Enables AI assistants to consult public data from the Paraná State Court of Auditors (TCE-PR), including construction records, bidding processes, court decisions, process consultations, and portal information.

The most comprehensive keyless federal-data MCP server. 36 tools for SAM.gov + USAspending + Federal Register + eCFR + Grants.gov. No API key, no registration, no signup. Works in Claude Desktop, Claude Code, Codex CLI, Cursor, Continue, Gemini CLI, and any MCP-aware host.

Enables AI assistants to check live air quality in Poland, including the nearest official GIOŚ monitoring stations with the air quality index and hourly PM2.5, PM10, NO2, O3 and SO2 readings, plus smog warnings for the voivodeship and a 3-day Copernicus CAMS forecast of particulate matter and pollen. Can be used via a public no-key endpoint or run locally.

Provides access to Hong Kong government auction data for confiscated, used/surplus, and unclaimed items via a FastMCP interface.

Provides access to 7 free government and open data APIs including NOAA weather, US Census demographics, NASA imagery, World Bank economics, Data.gov, and EU Open Data through 22 specialized tools, with most requiring no API keys.

Enables searching the FBI's official wanted-persons database and retrieving full profiles — including physical descriptions, aliases, cautions, rewards, and images — for fugitives, Ten Most Wanted fugitives, cyber and terrorism suspects, white-collar cases, and kidnappings or missing persons. Queries are keyless and can be made over MCP or plain HTTP, with no account required for the first calls.

MCP server for querying official Brazilian electoral clearance certificates (Certidão de Quitação Eleitoral) from the TSE, with a single read-only tool and prepaid per-use pricing.

Not another TSDR wrapper. Most trademark MCP servers wrap the USPTO's TSDR endpoint, which returns a single record when you already know its serial or registration number. Ours searches and filters the whole register. Your agent can find the marks it doesn't already have the numbers for.

Enables AI assistants to compute exact Sri Lankan tax figures — APIT/salary tax, annual income tax, withholding tax, VAT and SSCL — under the official Inland Revenue Department rules in force on any given date since 1 January 2023. Every result is returned with precise decimal amounts and the dated IRD sources and rule versions used, so rates are never recalled from memory.

Enables AI assistants to work out the tourist, city, occupancy and hotel taxes a stay adds on top of the room price, night by night, for given dates, guests and room cost, with each figure tied to its official source and check date. It also exposes full local rules (rates, seasons, caps, exemptions) for researched places and returns links to live hotel and rental prices.

Enables checking names against the FBI Most Wanted list for compliance and AML due diligence via a read-only MCP tool.

A comprehensive MCP server implemented in TypeScript that provides access to the German BIM Portal REST API, enabling querying of organizations, building properties, LOINs, domain models, and AIA resources through natural language.

Enables querying Brazilian voter registration (título eleitoral) information from the official TSE source through a single read-only MCP tool.

Enables AI agents to check whether a specific provider, grantee, or contractor voluntarily reported misconduct to HHS-OIG and paid a civil monetary penalty to resolve it, and to browse the most recent resolved cases. Returns exact payment amounts, entity details, and full allegation narratives fetched live from each case's own detail page.

Enables querying national weighted estimates of consumer-product-related emergency-department injuries in the US, including per-product yearly figures with small-sample instability flags, rankings of the products injuring people most, and keyword lookup of product/activity codes. Runs keyless over HTTP or as a local stdio server, requiring no credentials.

Enables AI agents to search U.S. hydraulic fracturing disclosure records — well-level frac job details (operator, API number, location, dates, base fluid volumes) and the disclosed chemical additives per job — by state, county, operator, or API number, plus lookups of where a given chemical has been used by CAS number. Responses include source, license, and coverage-window metadata so callers can distinguish missing data from out-of-window disclosures.

Provides AI models with seamless access to OParl parliamentary data APIs through the Model Context Protocol. Enables natural language queries for parliamentary meetings, documents, organizations, representatives, and other government data across multiple OParl implementations.

Lets any MCP-speaking assistant look up SEC filings and fundamentals, 13F holdings, insider trades, BDC loan books, and U.S. government reference data from Treasury, FRED, FDIC, USAspending, USPTO and CFTC, with the source named on every answer. Most of its 29 tools run keyless against public sources, giving citations-backed answers without an account.

Enables listing categories used across NYC Parks events with counts, such as 'Best for Kids', 'Sports', 'Nature Exploration', 'Fitness'.