"Resources or services available for free" matching MCP connectors:

Search 77,000+ MCP servers ranked by real adoption data to find the right one for any task.

Discovery, OAuth, project operations, and exact project MCP handoff for Spala backend projects.

Generate and read PDFs for AI agents: a generate_pdf and a read_pdf tool, priced per document.

AI Visibility and Content Intelligence tools for Claude and MCP-compatible agents.

MCP server for generating rough-draft project plans from natural-language prompts.

Meta-search MCP for x402 agent-payable services -- find paid APIs across every registry.

Keyless docs search so coding agents wire up RoxyAPI: every endpoint, param and SDK call.

Generate HTML to PDF documents in bulk or single — raw replacements or based on conditions, loops

Design references for coding agents: real product screens, sections and decoded design tokens.

Read-only MCP server for turva.dev, an agent-readiness audit and advisory service.

Connect and your assistant can search the over 50,000 MCP servers tracked and pick the right one for any task

Official Nas.com MCP Server for AI agents. Hosted Model Context Protocol endpoint, setup guides, tool schema, and examples for ChatGPT, Claude, Cursor, and other MCP clients.

Physical mail API for AI agents. Send letters, certified mail. Sandbox + live keys via MCP.

20 free dev tools: JSON/YAML, XML/SQL, Cron, SEO, QR code, URL shortener, cron tasks, files

AI infrastructure design agent. Describe your app in plain English; Riley designs, prices, and deploys AWS or GCP infrastructure with generated Terraform.

Path-scoped team memories, rules and skills for Claude Code, Cursor, Codex and other MCP clients.

Microapp offers premium utility tools for humans and AI agents, accessible at microapp.io and through this MCP endpoint.

32 creative AI tools (18 free) for agents: generate, upscale, mockup, print, watermark.

The PropelAuth Integration MCP Server helps you and your favorite AI agent integrate PropelAuth as quickly and easily as possible into your project. Whether you're integrating PropelAuth into your Next.js project or your FastAPI backend, the Integration MCP Server will ensure your AI agent has the best context possible for a successful integration.

Precision math engine for AI agents. 203 exact methods. Zero hallucination.