"Best free MCP for React app with MySQL/MariaDB database" matching MCP connectors:

400+ pay-per-call tools + 100 skill packs. USDC + USDG on 10 chains, or free via PoW.

Website QA for your coding agent: audit SEO, performance, security, accessibility over MCP.

Visual website feedback your coding agent applies: pin change requests on the live site over MCP.

Scan public websites for privacy, cookie, tracker, consent, policy, and disclosure risk signals. Start instantly with zero-auth Light mode—no account or API key required.

Checks whether a website is readable and citable by AI systems (ChatGPT, Claude, Perplexity, etc.)

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.

Pre-computed navigation recipes for public websites — skip explore-and-discover.

Read a URL as clean markdown, screenshot a website, url to PDF. Web access for agents, no signup.

Website intelligence audits for AI agents: free preview plus x402-paid Agent Readiness scoring

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

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

Visit https://brave.com/search/api/ for a free API key. Search the web, local businesses, images,…

Free public web freshness and response-metadata checks for AI agents.

Scan any URL for AI agent readability — Vercel Spec, llmstxt.org, and agent-protocol manifests.

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

Web search API: find every relevant event across the open web, not just the top results.

Hosted MCP with 91 agent tools: X, domains, SEO, Maps, Trends, Search, YouTube, TikTok, and more.

A live remote MCP server (Streamable HTTP) for ai2web.dev. Any site running AI2Web exposes its declared capabilities as MCP tools at /ai2w/mcp, this is the protocol's own site demonstrating it.

Bright Data MCP — Bright Data Web Unlocker + SERP API (brightdata.com)