"Open-source API development tools for Linux with Markdown support" 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 AI assistants to discover, retrieve, and compare official international development indicators from sources such as the World Bank, FAOSTAT, WHO, UNICEF, and IMF, while preserving source identifiers, units, and citations.

26 US federal data domains as 23 MCP tools. Ed25519 signed responses. Free, no API key.

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.

AI agents can search and match Korean space, aerospace, and defense R\&D support program announcements. It provides MCP tools to filter by applicant type, deadline, and source family.

Provides MCP-compatible agent clients with current weather, forecasts, and place-name geocoding from the Open-Meteo API without requiring an API key.

Defeatbeta API is an open-source alternative to Yahoo Finance's market data APIs, designed to provide reliable and high-performance financial data.

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.

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.

Enables AI agents to discover official public data sources, inspect their metadata and endpoint parameters, and execute live queries through a unified response envelope with a 500 ms budget.

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

Enables agents to discover, inspect, and query municipal open datasets from data.seattle.gov through Socrata SODA2, with bounded reads, aggregates, and reference guidance.

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 assistants to query French public open data through read-only tools: geocoding and reverse geocoding of addresses, company lookups by name, address, leader or SIREN, and commune listings by name, postcode or département. It wraps free, keyless government APIs (IGN Géoplateforme/BAN, Recherche d'entreprises/SIRENE, geo.api.gouv.fr) over stdio or Streamable HTTP with validated inputs and rate limiting.

Check if a flight connection is comfortable, tight or risky, with cited airport data.

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.

Open-source MCP server with 18 research and public-data tools (citation checking, grants, NPI providers, PDF tables, company leads) backed by Apify Actors.

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

Gives AI assistants read-only, key-free access to Sentinel-2 NDVI time series, ESA WorldCover land-cover shares, and Copernicus 30 m elevation and slope for a point or small area, returning the scene IDs, units, and caveats behind every number. Built-in sanity checks and a verify tool recompute key values through an independent path so the assistant can flag cloudy, low-confidence, or mismatched results instead of guessing.

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.

Enables answering questions about Ukrainian open data from the data.gov.ua CKAN portal by searching datasets, inspecting resource schemas, and running read-only SQL aggregates over a single tabular resource. Every data-backed answer is computed from retrieved data and returned with machine-readable provenance, and unsupported or unanswerable requests are refused rather than guessed.

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.

Ten tools I built to get facts from official open data, not guesses.

Enables AI assistants and agents to query Spanish public statistics from INE, official BOE publications, and Catastro property data via typed, read-only tools with structured, source-citable results.

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

Enables querying Italian and EU law, case law, parliamentary data, open data portals, Eurostat statistics, PNRR projects, and migrant reception centers through 24 MCP tools, with citation-grounded legal answers.

Enables Claude to read UK bank account data—balances, transactions, cards, standing orders, direct debits, and identity—through TrueLayer's Data API, with local caching and optional live refreshes. It is read-only by design, requiring consent and never moving money.