"Free PostgreSQL Database Solutions" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
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.
Search Fragments — two tools for the queries an agent can't place, both built to decline rather than guess. resolve_fragment takes a half-remembered, cross-source query ("a musician who became famous for stopping performing") and returns a grounded answer, ranked web sources to confirm by eye, or an explicit no-resolution. verify_claim takes a specific factual assertion and returns supported, partially_supported, insufficient_evidence, or unsupported, with cited evidence and a stated_limits field that is always present. There is no confidence score — insufficient_evidence fires freely, and unsupported requires a source that explicitly contradicts, never mere absence of confirmation. Every verdict is decide-by-eye: "supported" means current web sources confirm it, not that the claim is true. Calibrated against 18 known claims before release. Free, no signup. Streamable HTTP (MCP 2025-11-25). Read-only.
Agentic Finance: 500+ agent tools, multi-chain USDC over x402 or MPP, or free via proof-of-work
Free, open MCP server for The Urantia Papers. 197 papers, 14,500+ paragraphs, 4,400+ entities.
teas.co.uk is an independent UK shop with more than 600 teas, coffees and hot chocolates from 60 brands. This connector searches the live catalogue in plain words, such as a strong breakfast tea or something caffeine free for bedtime, with filters for type, caffeine, milk, time of day, strength, pack size, price per cup and organic, Fairtrade or vegan labels, and shows live prices and stock. Open any product for tasting notes, a brewing guide and recipe ideas, or compare up to four side by side. Build a basket and get a secure checkout link: payment always happens on teas.co.uk, never in the chat, and the connector cannot place an order. Customers who link their teas.co.uk account (OAuth) can see orders and courier tracking, buy again, manage repeat deliveries, check reward points and start a return. teas.co.uk delivers to the UK, the Channel Islands, the Isle of Man and many European countries; prices are in pounds including VAT.
Search and read Edgepedia, a free and growing encyclopedia with citations. No key.
Let Claude, Cursor or Cline fetch pages and run Google searches from a real Singapore mobile IP (Singtel/M1). Hosted; free 24-hour trial key.
Web pages to Markdown, metadata and small crawls for agents. Free daily calls, then USDC x402/MPP.
Christian discovery for AI assistants: read any Bible passage word for word from a stored public domain King James text (never generated), find verses for what someone is carrying, get honest answers about Jesus and faith from Scripture, and find real churches, prayer gatherings and Tables near any city in the world. Every Scripture answer carries an evidence label: translation, corpus version and a content hash. Read only and free for everyone. Everything points to Jesus Christ.
Cite42 gives AI agents AI visibility, citations, SEO keywords and trends, plus four weekly or monthly trackers: AI Visibility, AI Competitors, AI Citations and AI Sentiment. Use it over MCP from Claude, Codex or Cursor, or via the REST API. $1 free on signup, no subscription. Learn more at https://www.cite42.dev
Search and fetch hand-drawn icons, illustrations and isometric drawings. The free set needs no key.
Free, read-only access to job listings rated by AI level, from Little AI to Builds AI.
A hosted LinkedIn MCP server for your own account. Paste one address into Claude, ChatGPT, Cursor or n8n to read your inbox, send messages and invitations, and search people. Free to start. Not made by LinkedIn.
NordicContacts provides read-only company and decision-maker data for Finland, Sweden and Estonia through a hosted MCP server. Identify companies, count matching segments and retrieve company or contact records for B2B prospecting. Connect to https://nordiccontacts.eu/mcp using Streamable HTTP. You need a NordicContacts account with an active trial or subscription. Sign in and approve access through OAuth. For clients without OAuth support, create an API token in your NordicContacts account and configure Bearer authentication; do not share the token in a chat or public listing. Eligible new accounts receive a one-month trial with 50 shared usage units and no credit card requirement. Starter costs €49/month with 500 included units; Pro costs €79/month with 1,000 included units. Paid prices exclude VAT; applicable VAT is calculated at checkout. The trial is not a recurring free allowance. Service information, taxonomy discovery and segment-count tools do not consume balance. Record-retrieval tools, including company identification, consume the same balance as REST API retrieval and subscribed Excel exports: included units first, then prepaid top-ups. Completed retrieval calls have a one-unit minimum, including calls with no match. Exact charging is documented per tool; do not treat every MCP call as one contact. The MCP server does not create Excel files, send outreach or update CRM records. Excel downloads and Pro's HubSpot/Pipedrive integrations are separate web-application workflows. A one-time Excel purchase alone does not grant MCP access. Setup and tool reference: https://nordiccontacts.eu/agents/docs
Web scraping for agents. Point it at a URL and it returns the page as clean markdown, JavaScript-rendered pages included. Point it at a site and it maps the URLs or crawls the section you need in the background, a few pages at a time so results fit in the conversation. Search the web and read full pages, extract fields with a JSON schema you define (validated, never invented), read a store's catalogue or a blog's posts from the platform's own feed, and check whether a page has changed. Failed requests cost nothing. The free plan includes 1,500 credits a month.
An MCP for marketers that gives agents tools for SEO, AEO, socials and ads data. Generous free tier; works in Claude, ChatGPT, Cursor and other MCP clients.
Search, price, and order press placements across 1,600+ publications. Free AI-visibility audits too.
Check which AI crawlers a site allows and see pages the way AI crawlers do. Free, read-only.
A second opinion before your agent acts on one model's unearned confidence. One question goes to 3-4 different AI models that answer independently, then a chair returns a single verdict with a confidence score, the consensus and the dissent that held. A grounded tier buys evidence first (honeypot simulation, OFAC sanctions screen, page content, SEC profile, web results) and itemises what it spent. Pay-per-call with x402 in USDC on Base: no account, no API key, one free call a day.
Search a human-reviewed directory of free tools and projects, including AI agent tooling. Read entries and categories, or suggest a product to a pending review queue. No authentication.
