"How to work with a vector database" matching MCP connectors:

One MCP endpoint over 75 public PPN APIs: search_apis to discover, execute_api to call. Free tier.

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

Search scientific papers with structured experimental data from full-text studies

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.

MCP server for the Philippine Standard Geographic Code (PSGC) API. Gives AI agents structured access to the full PH geographic hierarchy - regions, provinces, cities, municipalities, and barangays.

Official economic statistics with citations: World Bank, IMF WEO, ECB. Verify claimed figures.

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

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

Read-only access to the Islam West Africa Collection via Hugging Face datasets.

Software entry prices for 16 categories, with ratings and true 3-year cost. CC BY 4.0

Reverse geocode latitude/longitude to loc_id; resolve loc_ids to boundaries, centroids, hierarchy.

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

Public fellowship and grant search with sourced details and live filter vocabularies.

CMS Open Payments, with annual dataset discovery through the official DKAN API.

Origin-signed US political data: 25,546 officials, bills, votes, positions with sources.

Search structured COMPAMIR news in Japanese and English, with links to source reports.

Reviewed public-data search and execution with provenance and verifiable integrity receipts.

Nationwide Japanese ramen shop database — 62,000+ shops across all 47 prefectures. Geo search (lat/lng + radius), prefecture/city filter, 14-value ramen-style taxonomy, nearest-station data, and monthly closure tracking. No auth required.

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