"Search functionality without API key requirement" matching MCP connectors:
Matching Connector Tools:
Government tender search for AI agents. UK, EU and US procurement opportunities.
Live internet-censorship signals: Great Firewall reachability, model-layer censorship, takedowns.
Funding stress early warning for US money markets from free public data, with an honest backtest.
Official French & European company data for AI agents. Pay-per-call in USDC via x402, no API key.
City geocoding and timezone resolution for birth data, for AI agents, one API key.
Search scientific papers with structured experimental data from full-text studies
Verified US local service providers across 10 home-services trades. Ratings, hours, no API key.
US crime scores, incidents, neighborhood demographics, rent data, and offender search by address.
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.
MCP server for GOV.UK — search, content retrieval, organisation lookup, and postcode resolution.
Search bills, legislators, committees, and events across all 50 US states, DC, and 5 US territories.
Search USGS and EMSC seismic data — real-time feeds, event queries, and earthquake counts.
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.
Decode VINs, search recalls, complaints, crash ratings, and investigations.
Search US court opinions, federal dockets, judges, citations, and oral arguments via CourtListener.
Nonpartisan U.S. Congress data: bill decodes, rep lookup, bilingual EN/ES, read-only, no accounts.
Search PubChem compounds, properties, safety data, bioactivity, and cross-references.
Search books and authors, fetch editions, browse subjects, and resolve cover images.
Places worth a detour, from Wikidata: search, nearby lookup, fame rankings, stats. No key, CC0.