"An open-source relational database management system" matching MCP connectors:

Taiwan stock market data (TWMD): official-source, point-in-time-safe datasets via read-only tools.

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).

Real-time crypto market intelligence for AI agents. Live price, funding rate, open interest, buy/sell ratio, fear/greed, orderflow, and OHLCV history across 20 exchanges and 24 tokens. Address risk scoring included.

Open-source AI accounting skills verified by licensed accountants (tax, VAT, payroll).

Taiwan Stock Exchange (TWSE) open data as MCP tools: stock quotes, ETF data, 140+ public datasets.

Sourced carbon emission factors + audit-traced calculations an AI can cite.

Live US savings, CD, mortgage & HELOC rates with source + timestamp on every figure.

Quant tools + an NFL fantasy draft assistant for AI agents — Kalshi & Polymarket EV, edge, ADP.

Source-linked Malaysian individual and sole-proprietor tax guidance for AI agents.

Norwegian company intelligence: ownership, roles, financials, risk, KYC/AML/PEP (multi-source)

Free crypto futures data: open interest, funding, long/short, liquidations, volume. No API key.

13-week cash flow plan with a live Excel workbook, not just an answer in chat.

Source-linked SEC 13F research, quality checks, watchlists and audit trails for agents.

Source-backed US market signals: insider filings, Congress trades, institutions, consensus.

Official-source China bank card offer facts for agents; free bank list and paid factual search.

Hong Kong Monetary Authority (HKMA) public open API MCP. Keyless.

LatAm govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 22 countries; Brazil free.

Score an IP, email, phone, domain or device for fraud in one call, with the signals behind it.

African govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 34 countries; Ghana free.

Bank of England Interactive Statistical Database (IADB) MCP.