"Answer" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Check the factual claims in a draft or an answer: a quick verdict, or a deep check with sources.
Measured share of answer for 24 crypto and Web3 brands. An open dataset, not an audit of your site.
Measured share of answer for 20 SaaS brands. An open dataset, not an audit of your site.
Romanian company data from the official registers, for AI assistants and agents. Look up any company or sole trader by fiscal code (CUI) or by name: identification data, status, VAT registration, e-Factura enrolment, annual financial statements since 2008, newly registered companies, and the BNR reference exchange rate. Sources are the trade register (ONRC open data), the tax authority (ANAF), the Ministry of Finance and the National Bank of Romania; every answer says which register it comes fro
ICMR-NIN nutrition for 52 Indian foods: protein, targets by age, cost ranking. Every answer cited.
Free, cited reference data for US law-firm marketing: lawyer advertising rules for all 50 states and DC, bar ad-filing fees, contingency fee caps, ethics opinions (incl. AI), ad-platform policies, federal MDL dockets, federal civil filings, statutes of limitations, law-office competition and legal deserts by county, lawyer wages, fatal crashes, CFPB, EEOC and FCC complaint data. Every answer carries its source, DOI and the date it was checked. Main server: 24 tools; one more server per dataset at /mcp/<dataset>. Read-only, no sign-in, CC BY 4.0. Published by Probative Growth, a marketing agency for law firms. Not legal advice.
Economic and social data for 298 countries and regions: 754 indicators in 10 categories — macroeconomics, financial markets, labor, demographics, real estate, commodities and energy, transport, healthcare, education and technology. Sources include the World Bank, IMF, FRED, OECD and WHO. Every answer carries the source, the licence and a link to the EconDash chart; IMF and other forecasts are labelled and kept apart from observed values. Five read-only tools, no sign-in.
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.
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.
Free index and sample of dated AI-engine answer rows; prices for paid x402 rows. Never pays.
ICOS atmosphere, ocean and ecosystem greenhouse-gas observations, with citation and DOI per answer
SEC filings, Wikipedia, arXiv, US Census and more for AI agents, with every answer source-linked.
WallChartBook: the site's own MCP server — dataset; every answer cites the site.
Query official statistics through MCP, with periods, places and citable sources in every answer.
Lanyardo: the site's own MCP server — dataset; every answer cites the site.
FMlane: the site's own MCP server — dataset; every answer cites the site.
Coshhvo: the site's own MCP server — dataset; every answer cites the site.
Intakez: the site's own MCP server — dataset; every answer cites the site.
