"Information on Air Quality Index (AQI)" matching MCP connectors:

Verify before your agent acts on data it paid for. Signed verdicts, checkable offline, via x402.

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.

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.

BowmarkA

ai.bowmark

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

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

Xiaohongshu, Douyin, TikTok, YouTube, X links to text: transcript, on-screen text, images described

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

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.

Free website analyzer: score any public URL 0-100 across 8 quality dimensions. No auth.

Any site's llms.txt: find the covering index, read its linked docs as markdown, search sections.

Scan a business website and see if AI agents can find it, trust it, and act on it.

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

Pay-per-call MCP tools via x402 (USDC on Base): QR codes, images, text analysis, web fetch.

Every bag of specialty coffee on sale in New Zealand, re-read nightly from each roaster's shop.

Read any web page as clean text for a prompt, or list every link on it.

Ce qu'une IA lit des sites web français : note, axes, secteur, questions sans réponse.

Web search and URL-to-markdown for agents. Pay per call in USDC on Base, no signup.

26 pay-per-call tools for agents: scrape, verify, guards, crypto. x402 USDC on Base.

Verify public marketplace, retail, classified, and auction listings before an agent relies on them; return source-supported facts or explicit safe-failure states.

Check if a link on a live page is followable: rel tokens, meta robots and X-Robots-Tag