"Information about backend development or backend systems" 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.

Validate startup ideas with behavioral evidence — not opinion. Demand Discovery AI™ is a sales-agent MCP that answers founders' questions about the validation framework, the four data-signal categories (Search & attention, Conversation & pain, Adoption & spend, Capital & hiring), the Demand Score™, and the Build/Pivot/Kill verdict™. Includes 7 tools: ask a free-form question, get the validation framework, get product details, explain demand signals, compare validation approaches, get data-source

UN Sustainable Development Goal indicators for all 17 goals, curated by country and year. Free.

World Bank World Development Indicators: curated country-year economy, health, education and more.

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.

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

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.

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

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.

Query 29,500+ World Bank development indicators for 200+ countries across 60+ years.

Screen a vendor, store, or group-buy for legitimacy: reputation, red flags, Reddit sentiment.

Amazon brand, seller, niche & buy-box intelligence inside your own Claude or ChatGPT.

Read-only scripture-study engine: complete-or-fail concordance over Greek NT, Hebrew OT, LXX.

Query an independent, payment-blind reference of 1,682 dermacosmetic products — by product, ingredient, concern, category or brand. Neutral descriptive facts, every result links back to its reference page. No ratings, no paid placement.

Access FEC campaign finance data. Query data about candidates, money trails, and election filings.