"Understanding the concept of perplexity" matching MCP servers:

Provides live access to Canadian economic data via the Bank of Canada's Valet API, including exchange rates, policy interest rates, CPI, bond yields, and commodity prices.

Enables searching and retrieving articles, sections, and tags from The Guardian via the Guardian Open Platform API.

Per-unit cost of 13 back-office tasks done by a person vs by software, in the US, Greece and Ukraine, with an official statistic behind every hourly wage. Bundled data, works offline.

Enables AI agents to search The Met's open-access collection by keyword with filters for images, on-view status, medium, and year range, and to fetch rich object details such as artist bio, dimensions, department, and gallery number. Also lists the museum's curatorial departments so searches can be scoped, all without an API key.

Read-only MCP server for the July 2026 survey of AI in open-source design systems, enabling agents to query 19 systems' affordances, coercion techniques, and platform data via 9 tools, 2 resources, and 2 prompts.

MIT ABS sister MCP — same five tools, citations. Pair with the ausdata gateway for joins and Embed.

Provides AI assistants with real-time and historical gold buying condition scores, including current readings, past data, and zone performance since 1971.

Provides access to the Australian Bureau of Statistics (ABS) Data API. This server allows AI assistants to query and analyze ABS statistical data.

Provides access to comprehensive U.S. economic data including GDP, personal income, and regional statistics via the Bureau of Economic Analysis API. It enables users to query datasets and retrieve specific economic indicators for states, counties, and industries through natural language.

Integrates Eurostat quality-of-life metrics and real-time job searching to help users find international internships in high-ranking European cities. It enables ranking cities based on personalized criteria like safety or transport and retrieves structured internship listings via the Tavily API.

MCP server that resolves postal/ZIP codes to place names, states, and coordinates using Zippopotam.us. Free, no API key required.

Enables real-time domain registration lookups via RDAP, including availability, expiration, and registrar details, with no API key required. Supports natural language queries like 'is example.com available?' or 'when does example.com expire?'.

Enables currency conversion and exchange rate lookups using real ECB reference rates, free and without an API key. Supports natural language queries like 'convert 100 USD to EUR' or 'what's the exchange rate between GBP and JPY?'.

Provides real, official public holiday data for ~100 countries with tools to list holidays for a year and check if a specific date is a holiday. Free, no API key required, powered by Nager.Date.

Provides real-time air quality data (US AQI, PM2.5, PM10, ozone, NO2, SO2, CO) for any city via natural language, using free Open-Meteo data and a single tool.

Enables querying Türkiye Sigorta Birliği’s Kasko Değer Listesi (vehicle insurance valuation list) through MCP, CLI, and Python, allowing natural language lookup of current and historical vehicle insurance values.

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

Enables plain-English description of training data needs to search Hugging Face and GitHub, composing coverage-scored training packs without API keys or Bridge.

PLEXUS federates the world's knowledge — government records, scientific literature, legal databases, financial data, cultural archives, and more — into a single normalized API. Get intelligence, not raw data. Pay per call in USDC via x402. No subscriptions, no API keys.

Exposes India's open government data (data.gov.in) APIs via the Model Context Protocol, enabling agentic AI data exploration.