"An open-source vector database for similarity search and AI applications" matching MCP servers:

We sell open source compliance, scientific, and government data.

Enables AI agents to discover and access 800TB+ of public geospatial data from Source Cooperative, with tools for listing organizations, products, files, and fuzzy search.

Enables searching and retrieving public-transport feed metadata from MobilityData's open catalogue, including GTFS schedule and realtime feeds with operator URLs, licenses, and bounding boxes.

A comprehensive MCP server that makes official UAE open data queryable through natural language, offering tools for source discovery, dataset search, spatial joins, and intelligence recipes.

CC0 open-data registry of community support helplines worldwide. TypeScript MCP server providing verified contacts with citation, staleness, and country-context guardrails. 15+ countries indexed.

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

MCP server that finds open-source, commercially-usable icons and returns direct SVG download links, searching over 300,000 icons with license filtering.

Enables searching and retrieving Korean Supreme Court precedents from the law.go.kr Open API, with support for keyword search and detailed judgment text.

An MCP server that provides weather forecasts and current conditions for any city via the free Open-Meteo API, with no API key or account required.

Federated, license-verified search across open-access museum collections — currently The Met, Cleveland, AIC, Wikimedia Commons, and Europeana, with more being added. Strict-default-deny rights gate accepts only CC0 / Public Domain Mark, returning reuse-safe artwork with citations in three styles.

Enables AI clients to search and read over 2,400 New York City public datasets through the Socrata SODA API, with ready-made tools for restaurant health inspections and 311 service requests plus general dataset discovery and querying.

Enables MCP clients to query UNDP's open data on projects, funding, donors, SDG alignment, and focus areas without an API key.

Provides hourly and daily weather forecasts using the free Open-Meteo API without requiring an API key.

A governed MCP server for Saudi open data sources (SAMA, stats.gov.sa, Ministry of Finance, data.gov.sa), providing typed contracts, registry-backed metadata, and CLI/API access for dataset search, preview, and controlled export.

Enables Claude to pull free, citable financial data for comps and DCF work — standardized SEC EDGAR XBRL financials, filing links, FRED Treasury yields, market prices and beta — with every value returned alongside its source concept, accession and filing URL. Provides read-only tools for company lookup, financials, filings, market data and peer comparison tables that need no API key.

A Model Context Protocol server for the CBS Open Data OData API, enabling AI assistants to query, filter, and explore CBS statistics.

Enables access to Hong Kong government's official open data portal (DATA.GOV.HK) through natural language queries. Supports searching datasets, browsing categories, and retrieving detailed information about Hong Kong's public data resources.

MCP server for Korean public institution information, enabling AI clients to search, compare, and analyze disclosure data, public services, laws, and news.

Enables AI assistants to access the Open Food Facts database to query detailed food product information, nutritional data, and environmental scores. Supports product lookup by barcode, smart search with filtering, nutritional analysis, product comparison, and dietary recommendations to help users make informed food choices.

Provides weather information through MCP tools, including city search, current weather, forecasts, comparisons, and warmest day identification, using the Open-Meteo API.