"Free tools or resources that do not require an API" matching MCP connectors:

SSRF-safe web intelligence: 4 outcomes, 32 paid x402 tools, 3 free tools and a URL preview.

Deterministic AI agent microtools, no accounts/API keys. fetch_extract: 98% token cut. 38 tools.

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.

Clean YouTube transcripts for agents: single videos, channels, playlists, plus AI caption cleanup.

CatchAll is a web search API built for comprehensive event retrieval — not ranked results, but all matching records.

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.

Pay-per-call web scraping for AI agents via x402 on Base USDC. Six tools, no signup.

Pay-per-call web scraping for AI agents — no signup, no API keys, just USDC micropayments via the x402 protocol on Base. Six tools: scrape webpages, extract structured data, capture screenshots, parse metadata, manage browser sessions, and run workflows. Runs on Cloudflare Workers with Browser Rendering. Free tier: 10 calls per wallet per 30 days.

Do things on live websites: prices, availability, quotes, bookings, anything behind a form or login.

13 micro-tools for agents: read pages, verify email, convert, validate, diff, extract. AI-operated.

Track prices & price history on any online shop, with alerts and an API

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

Firecrawl MCP — wraps the Firecrawl API (firecrawl.dev) for web

Check whether a merchant exposes the public files buyer agents need.

Cite or capture a web page; installs the capture extension in Firefox and Chrome.

Web intelligence for AI agents: fetch, render, extract, research. x402 micropayments, no API keys.

Free remote MCP server for fetching public web pages through a rotating proxy pool.

Web scraper for agents: fetch any URL as clean markdown (headings, links). x402 for JS rendering.

DNS, WHOIS/RDAP, DMARC/SPF, LEI, sitemap, web extract, VAT, QR. Paid per call in USDC, no signup.