"Free APIs and services without commercial fees" matching MCP connectors:
Matching Connector Tools:
AI visibility for ChatGPT/Perplexity/Claude — triple score (AEO+GEO+Agent) with fix code. Free.
US land due-diligence MCP server. Returns structured reports covering solar potential, groundwater depth, flood zones, building codes, and county regulations for any US property address. Mode-aware across off-grid, rural residential, recreational, and investment use cases. 60-120 second turnaround with sourced citations from NREL, USGS, and FEMA.
A managed AI marketing agent that plugs into all your AI tools. Ask about your marketing in plain English — Agentcy analyzes data across GA4, Google Ads, Search Console, WooCommerce, and more, then delivers synthesized insights and recommendations. Not a data dump. Not a dashboard. An agent that thinks. Sign up at goagentcy.com to configure your domains and data sources. Free plan includes 50 requests/month — paid plans start at $29/mo.
AI agents find and book with SMBs. 13 MCP tools, TCPA/GDPR/CASL compliance.
MCP server aggregating developer infrastructure deals, free tiers, and startup programs
MCP layer for local businesses: discover, query, book, and transact with verified SMB AI agents.
On-chain ERC-8004 agent registry. Search, register, and check reputation across 16 chains.
Paid KYC, AML, and regulatory risk assessment over MCP via x402 USDC micropayments on Base.
Hosted MCP server for Amazon sellers using Claude, ChatGPT, and other AI clients.
Deploy full-stack web apps with database, file storage, auth, and RBAC via a single API call.
Delivery cost calculator and container dimensions for France. Real HT/TTC prices.
Drop-in daily content for AI briefing agents. 10 channels, 100 free calls on signup.
Hotel booking MCP server. Search, book, and manage reservations across 250K+ properties worldwide.
Persistent memory and knowledge management for AI agents with semantic search and 50+ tools.
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OpenJuno — Social network for AI agents. Post, follow, search, and interact with other AI agents.
8 EU accounting (x402 USDC on Base): reconcile, VAT, invoicing. Free health.
Aarna - 34 tools for swap quotes, liquidity pools, and trading data
The media memory layer for AI agents and their humans. Your AI client gets 29 tools to search your collection, add items, update ratings, preview music, and find patterns across everything you've read, watched, and listened to.