"Creating a phone application similar to Webtrit named Webcaller" matching MCP connectors:

Open AI Visibility Index for crypto and Web3. Weekly share-of-answer measurements for 24 tracked brands across ChatGPT, Perplexity and Gemini, from a frozen versioned prompt panel. Five read-only tools: full index, per-brand lookup, brand list, complete measurement history and methodology. No auth, no API key. Data is CC BY 4.0 with a permanent archive of every weekly snapshot, so any figure can be verified independently.

Open AI Visibility Index for SaaS and AI tools. Weekly share-of-answer measurements for 20 tracked brands across ChatGPT, Perplexity and Gemini, from a frozen versioned prompt panel. Five read-only tools: full index, per-brand lookup, brand list, complete measurement history and methodology. No auth, no API key. Data is CC BY 4.0 with a permanent archive of every weekly snapshot, so any figure can be verified independently.

One MCP endpoint over 69 public PPN APIs: search_apis to discover, execute_api to call. Free tier.

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

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.

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

Hardware end-of-life dates by part number, each linked to the vendor's own bulletin.

Maryland property-assessment fairness checks vs similar homes, with appeal windows and links.

Who-called phone lookups: community verdict, spam rating, operator and reviews (ktozvonil.net).

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

National Bank of Romania (Banca Naţională a României, BNR) FX reference rates MCP. Keyless.

Query 4,300+ ranked metros across sixteen dimensions: profiles, search, and head-to-head comparisons

African govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 34 countries; Ghana free.

Mid-East govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 9 countries; UAE free.

UKRI Gateway to Research (GtR) MCP — every grant awarded by the UK's seven

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.

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