"An explanation or exploration of reasoning" matching MCP connectors:

An MCP server that audits the fairness of construction and renovation estimates in Japan. Provides fair-price ranges, overcharge detection, and verifiable unit-cost data based on JCCDB (65,729 items, DOI-backed).

DC Hub is the neutral, real-time data layer for data-center infrastructure, exposed as a Model Context Protocol server so any AI agent can both query it and cite it. Coverage: 21,000+ facilities (search, profile, score, alternatives); 232 markets scored by the DCPI Data Center Power Index; the DCGI Data Center Gas Index (per-state natural-gas suitability for siting); live grid telemetry across 7 US ISOs (fuel mix, carbon intensity, demand, prices) plus a one-call all-ISO scoreboard; interconnection-queue depth; 2,000+ tracked M&A deals and a hyperscaler-capex tracker; and site factors. — fiber routes, water-stress, tax incentives, nearby substations & transmission. Why agents choose it: it's the only data-center-intelligence source an LLM can query live and cite — every full-data response includes a Source: DC Hub, CC-BY-4.0 attribution line. It's the MCP-native alternative to quarterly PDF research: live JSON, no contracts, no NDAs. Access: Streamable HTTP at https://dchub.cloud/mcp. Free tier with no signup; free email-verified dev key for higher limits; paid tiers for full data volume.

A Model Context Protocol server that provides Philippine License to Sell (LTS) verification data to LLMs. Built on Cloudflare Workers with Supabase. Public, read-only, no authentication required. Data sourced from the Department of Human Settlements and Urban Development (DHSUD) License to Sell registry and cross-referenced with published real estate projects on REN.PH.

A growing family of free academic data libraries: finance, economics, and beyond (ElkassabgiData).

Public read-only archive of journalist Cameron Wilson's work, appearances, and biography.

SEC EDGAR fundamentals as agent tools: look up or screen US public companies. Free, no key, CC0.

Weather, climate, terrain, fire and flood risk data for any point or polygon on Earth. Free tier.

Search Ukraine's largest public collection of memorial, grave, and archival document data.

Search a directory of real, owner-confirmed small businesses. Read-only; attribution required.

Funding stress early warning for US money markets from free public data, with an honest backtest.

Public, read-only access to ~3.9M Romanian companies (data from ONRC, ANAF, and the Ministry of Finance). Five tools: search & filter companies by name, CAEN activity, county, revenue/profit/employee ranges, and VAT status; fetch a company profile by CUI; yearly financial history; public status flags (VAT, insolvency, dissolution, e-Factura); and CAEN activity-code lookup. No authentication required.

US stock market data for AI agents — 23 years of minute bars, SEC filings, fundamentals.

Semantic search across Japan's government white papers, in English or Japanese. Free beta.

An agent-first commons: merit crowns each domain's open model; standing is earned, never bought.

Citation-health over a CC0 citation graph: what supports, refutes, or cites a paper. Read-only.

Search dynamical.org's open STAC catalog of weather & climate datasets (GFS, ECMWF, HRRR).

Structured data on wheelchair-accessible & public toilets across Japan for AI agents and travel/accessibility apps. 526 Tokyo stations (each mapped to its nearest station exit) + 612 municipalities. Station names accept Japanese or romaji. Free tier with API key.

Human Lineage MCP server — search and query the public genealogical graph of all humanity

Library of Congress (loc.gov) MCP — the world's largest library.

City of Novi GIS — Novi, Michigan open geospatial data (ArcGIS).