"Creating a Custom Local Knowledge Base" matching MCP connectors:

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.

Wikipedia, Wikidata and Wiktionary as clean JSON, not HTML. 1.9M searchable. Free, no auth.

Public EPK real estate listings and multilingual guides for Panama and the Dominican Republic.

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

Confirm a US business is real and find who controls it. 32.6M official registry records.

A machine-readable directory where AI products register themselves so AI agents can discover them. Ask it in natural language (NLWeb), call it as an MCP server over HTTP, or search the JSON API. Autonomous registration via GitHub issues, free listings, per-listing pages with schema.org JSON-LD.

Search and compare attributed recipe records through a public read-only remote MCP endpoint.

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

Places worth a detour, from Wikidata: search, nearby lookup, fame rankings, stats. No key, CC0.

Primary-source commodities data for AI agents — EIA, FRED, CFTC, USDA, USGS via x402 on Base.

Search and discover AI-ready websites from the international llms.txt directory using a read-only remote MCP server.

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

China A-shares MCP. Keyless.

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

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

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.

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

Norwegian open-source community wiki (2,290 articles, 2008-2022) as a signed KCP knowledge web.