"Using Google Sheets as a CRM" matching MCP connectors:

Public, read-only MCP over the complete 64-hexagram I Ching corpus. Deterministic lookup only.

Verified US local service providers across 10 home-services trades. Ratings, hours, no API key.

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).

Gateway between LLM agents and world data through eight tools and a bundled endpoint catalog.

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

China A-shares MCP. Keyless.

70,520 places worth a detour: name search, nearby lookup, fame rankings, statistics. No key, CC0.

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

320K+ open-source SVG icons: 12 tools, anonymous metadata search; SVG, exports, collections via Pro.

Ask in plain English, get a rendered, shareable map from live public data. 24 geospatial tools.

US state & local government contracts + spending, normalized across jurisdictions — keyless

Australian economic data from the ABS, RBA, and APRA: CPI, GDP, cash rate, labour, and more.

Query normalized U.S. Congress STOCK Act trades with member, ticker, and performance data.

California state contract awards & purchase orders: search, top vendors, agency spend — keyless

UN FAOSTAT global food & agriculture statistics over a local SQLite mirror, via MCP.

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.

Digital-crisis playbooks as tools, 9 languages, country-anchored reporting channels. CC BY 4.0.

5.5M verified entities, 10 countries, 13 tools. EU VAT, BORME, GLEIF, KYB. Free 100/mo.