"Understanding Proxies or Proxy Servers" matching MCP connectors:

SSRF-safe URL intelligence: 32 x402 tools plus free discovery and demo, no account or API key.

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.

Product search and price comparison for AI agents. Search 100M+ products across thousands of retailers by text or image, compare live offers and prices, and turn any merchant URL into structured product data. No API key required to start; add one for unlimited use and affiliate commission.

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.

Reliable web access for AI agents: smart HTTP, rotating proxies, and full-browser rendering.

Any public page to clean JSON or Markdown, plus Reddit with no API key. Failed calls are free.

Screenshots, PDFs and Markdown from any URL or HTML for AI agents, via the SnapForge API

Render HTML, Markdown, or URLs to images, PDF, or branded artifacts; extract and watch pages.

Web page or HTML to clean LLM-ready Markdown or JSON. x402 pay-per-call, $0.005, no API key.

Scrapingdog MCP — wraps Scrapingdog (scrapingdog.com), a proxy-based web

Ranks the best AI tool or API per task: transcription, TTS, web search, scraping and OCR.

Download DocSend and Papermark decks as PDF or PPTX, including email-gated and protected links.

Fetch any Russian website or API via a Russian IP — flagship tool fetch_ru. Pay x402/RUB.

Site crawl + tech stack + DNS + SSL + WHOIS — five web-intel layers in one MCP.

Single-property deep-dive: history, price/sqft, days-on-market, comps from a Redfin URL.

Generic URL crawl + HTML extraction — fallback for sites without dedicated MCPs.

Local business lead extraction with email + phone enrichment from Google Maps.

Pay-per-use HTTP proxy. Each proxy_request tool call costs 0.001 USDC on Base Mainnet via x402 protocol. Requires an x402-aware agent to pay automatically.

AI agent website builder. Create and publish link-in-bio sites via MCP or REST API.

Instant web publishing for AI agents. POST HTML, get a live URL. No account needed. Publish, update, and delete websites via MCP or REST API. Free tier includes 5MB sites with 24-hour expiry. Pro tier offers permanent hosting.