"General greeting or query" matching MCP connectors:

An MCP server that gives any LLM or agent clean YouTube transcripts on demand: a single video, a whole channel, or a playlist, plus AI cleanup of auto-generated captions. API-key auth, credit-based, same backend as the public v1 API. Get a free API key with 25 free credits at youtubetranscriptdownload.com/account.

Connect Claude, Cursor or any MCP client to AppSigma and let your AI research apps, read reviews and track rankings on its own – no glue code.

Docs: https://docs.keenable.ai/mcp-server Keenable is a free, remote MCP server that gives agents access to the web index. Search the web with ranked results and date/site filters, then fetch any indexed page as clean markdown. Works out of the box with no account or 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.

Real-time electricity prices, carbon intensity, and energy analytics for 41+ zones across Europe, GB, US, and Australia. Query live prices, compare zones, check gas storage, get green scores, and access advanced analytics via MCP.

Korea stock (KOSPI/KOSDAQ) bottom/top signals: verdict + score, scans. Pay-per-call x402.

Find products & standards using a patent - verified targets for licensing or enforcement.

Read-only live geopolitical-risk sensing for agents. ARCANE notices; never forecasts or advises.

Surplus lines market data, per query. U.S. E&S: premium, financials, litigation, catastrophe.

Public read-only Précis Finance MCP demo with synthetic data; no account or credentials required.

Korean crypto + news (kpop/semi), 17 tools, signed receipts. x402 Base+Polygon+Solana.

Citation-health over a CC0 citation graph: what supports, refutes, or cites a paper. Read-only.

13 tools: entity lookup, BORME, EU VAT (VIES), GLEIF, healthcare & economic data. 10 countries.

NFL/NBA/MLB/NHL/PGA + DFS and prediction-market data. Browse free; query with a free API key.

Human Lineage MCP server — search and query the public genealogical graph of all humanity

Supply chain risk scoring for npm, PyPI, Cargo, and Go. 9 tools. Behavioral signals.

Cost-of-living & quality-of-life comparison: take-home pay, equivalent salary, safety-net deltas.

Evidence-based supplement research for AI assistants. Query 4,794 clinical effect edges across 290 supplements and 502 biomarkers, 765 supplement-supplement interactions, 1,634 FDA drug interactions, and 22,570 product quality scores with AviScore ratings. 8 tools: supplement and biomarker lookup, drug and supplement interactions, brand quality rankings, condition-based supplement recommendations, fuzzy search for supplements and health conditions.

Technical analysis (RSI, MA, signal score) for 9,400+ global stocks, by ticker or name.

9 MCP tools: extract, analyze, research, compare, monitor, brief. Pay-per-call x402 or subscribe.