"A server that supports Server-Sent Events (SSE)" matching MCP connectors:

Search otwarteAPI.pl — a catalog of 53 official public Polish and EU APIs (VAT white list, KRS, GUS, NBP, ECB, Eurostat, VIES and more), curated for AI agents. One tool: find the right API by natural-language query. No API key, no signup.

Read-only breach intel, full history 2007-today: reports THAT an org was breached, never the data.

CLSTR reads 100,000+ articles a day from 40,000+ sources in 170+ countries and deduplicates them into single events, then links related events into ongoing situations with a maintained summary and a full timeline. An agent can answer what has happened over the last six weeks, not just what a single headline says right now.

Verified data on 8,000+ AI tools for any AI assistant: live status, pricing reality, user sentiment, viability, and alternatives, every answer carries a last-verified date. Free, read-only, no auth.

MCP server for live, sourced Brazilian public data from the official IBGE APIs.

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

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.

MCP server for Brazilian Federal Senate open data (legislative, administrative, e-Cidadania).

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

Public data intelligence for AI agents — CVE, compliance, patents, contracts, domains.

City geocoding and timezone resolution for birth data, for AI agents, one API key.

MCP server for GOV.UK — search, content retrieval, organisation lookup, and postcode resolution.

Fetch US Bureau of Labor Statistics data — CPI, unemployment, wages, JOLTS, and more via MCP.

Query FEMA disaster declarations, public assistance grants, housing aid, and NFIP claims.

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.

MET Museum collection via MCP — 500K+ artworks, metadata, provenance, open-access images.

Search and query government open-data portals (Socrata SODA API).

Look up Pokémon, moves, abilities, items, natures, and type matchups from PokéAPI v2.