"Researching an author based on their books" 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.

An MCP server that audits the fairness of construction and renovation estimates in Japan. Provides fair-price ranges, overcharge detection, and verifiable unit-cost data based on JCCDB (65,729 items, DOI-backed).

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.

Eligibility-first UK & EU grant discovery, inside ChatGPT and Claude. Checks eligibility before recommending, explains why each grant fits, and cites the funder's own page on every answer — with an honest "competition_risk: unknown" when the data isn't there. 6 tools: search, fetch, find_opportunities, should_apply, explain_opportunity, complete_profile. Transport: Streamable HTTP. Auth: OAuth 2.1 + PKCE. Free to install, no card required.

The only News based AI MCP your agents will ever need — custom categories, global regions, and time-scoped results in one tool. We use multi-vector & sparse-hybrid search to search through thousands of articles across the world to find the exact news you're looking for.

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

German and EU energy intelligence for AI agents, paid per call with x402 USDC on Base.

Paid Dutch company screening: VAT (VIES), insolvency, supplier screen. x402 v2, USDC on Base.

Fair sports win probabilities - bookmaker consensus, de-vigged to sum to 100%. 13 sports, 69+ books.

Exec comp benchmarking, say-on-pay risk, and governance cards for US public companies.

Read-only catalog, sequence, evidence, policy, and COA-verification lookup for an RUO supplier.

What a stock's price is betting on: implied growth, duration, margin from SEC filings. Free tools.

Analytical Re-Rate (RR) Scores + 9-factor breakdowns on ~300 junior precious-metals miners.

Venture Insights' free Concept Diagnostic, requested by an AI assistant for a founder.

Deterministic sealed verdicts on public claims and startup ideas (0-LLM claim-safety guardian).

Unusual options activity on 7,000+ US stocks: top prints, streaks, IV rank, sentiment, sectors.

Quiver Quantitative MCP — alternative-data on public companies (quiverquant.com)

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.

Verified Latin American data for autonomous AI agents — sanctions screening (OFAC+SARLAFT+CNBV+COAF+UAF), entity enrichment (RUES/CNPJ/RFC), central bank rates (DTF/TIIE/Selic/TRM/UF), and market intelligence. EU AI Act Art.13 compliant. $0.02–$0.10 USDC via x402 on Base and Solana.

Made-to-order data for AI agents: company intel, B2B contacts, scraping. Pay per call via x402.