"Free PostgreSQL Database Solutions" matching MCP connectors:
Matching Connector Tools:
Deep purchase intelligence for agents and apps: live prices, landed cost, trust scores. Free.
Open, verified shop database for AI agents: products, offers, price comparison, trust and coupons.
The trust layer of the x402 economy: free conformance checks, attestation, corpus, agent store.
qart.uk MCP server: resolve scanned codes, browse the free pool, and buy QR artwork.
Search French mountain holiday rentals and contact owners directly — commission-free.
Free public MCP server for Kapruka.com — Sri Lanka's largest e-commerce platform.
LEGO catalog: sets, parts, minifigs, themes, colors via Rebrickable. Free key required.
Real Amazon (US, UK, DE, CA, AU) & Walmart shopping data for AI assistants: ranked product shortlists, current prices, live stock, real ratings, and price/BSR history from a 17M+ product warehouse. Free hosted endpoint, no signup — 30 queries a day.
Free copy-and-run ChatGPT prompts for online stores: 924 prompts, 43 categories + 10 tasks.
The best agent monetization tool: free search, clear rev-share, 10M+ commerce/travel/local offers.
Turn any shopping list into a ready-to-checkout grocery cart across 26 European supermarkets.
Clean product data from any URL. Schema.org + AI extraction. 200 free calls/month.
Search & add local tours and experiences (Italy/EU). Operators: first 100 bookings free, then 5%.
Real, bindable home & auto insurance quotes via MCP — actual carrier rates, not estimates. Texas today, expanding across the US. Agents check eligibility, run a live multi-carrier quote, compare carrier-masked options, and hand the customer a secure link for a licensed agent to finalize the bind (never an automated purchase). 11 tools; read-only tools are open, quoting/binding tools use a free self-serve API key.
Live USPS, UPS & FedEx shipping rates plus USPS postage and stamp prices. Free, no API key.
Pack cargo into containers & onto pallets; a verifiable 3D loading plan. Free tier + REST API.