"An overview or explanation of 思维链 (Chain of Thought)" matching MCP connectors:

500+ pay-per-call tools + skill packs. USDC + USDG on 12 chains, or free via proof-of-work.

Query a live PrestaShop e-commerce store: search the catalog, get product details, real-time prices and stock. Fondouk is an open-source module (MIT) that makes any PrestaShop store speak MCP and UCP — this connector is its public demo store. Read-only, public data only.

For queries a model can't confidently place: resolves or declines. Built to decline, not guess.

Search 30,000+ decided U.S. security-clearance (DOHA) decisions: cases, outcomes, statistics, and timelines, with a citable link for every answer. CASE is the searchable public record of DOHA industrial security-clearance decisions from 1996 to the present, refreshed nightly.

Search thousands of verified US local service providers across 10 home-services trades, including crawl space repair, floor coating, radon mitigation, commercial electrical, and laundry services. Returns ratings, services, pricing, descriptions, and profile links. Every result passes a completeness gate, so listings are never half-empty.

Product search and price comparison for AI agents. Search 100M+ products across thousands of retailers by text or image, compare live offers and prices, and turn any merchant URL into structured product data. No API key required to start; add one for unlimited use and affiliate commission.

Docs: https://docs.keenable.ai/mcp-server Keenable is a free, remote MCP server that gives agents access to the web index. Search the web with ranked results and date/site filters, then fetch any indexed page as clean markdown. Works out of the box with no account or API key.

clariBI is an AI-powered business intelligence platform built for small and mid-sized SaaS, ecommerce, and operations teams. Instead of writing SQL or building dashboards manually, users ask questions in plain English ("what's our CAC by channel last quarter?") and the AI engine pulls the data from Stripe, HubSpot, Google Analytics, ad platforms, Jira, and 30+ other sources via the open Model Context Protocol. Dashboards generate themselves on source connect.

MCP server for makeup.land — an Israeli professional cosmetics retailer. Catalog tools (list_products with cross-lingual semantic search and ΔE-ranked shade matching that returns shade_match: {hex, delta_e} per product, plus validate_gift_card) work anonymously. Customer-data tools (list_brands, get_customer, get_cart, list_orders, list_payment_links, get_customer_best_deals) need a bearer token issued via shop@makeup.land.

AI-powered eSIM recommendation agent for travelers. Provides real-time coverage checks, package search by country, and pricing across 190+ destinations via structured tool calls. Tools available: - list_countries - full list of supported destinations - check_coverage - network operators by country code - search_packages - filter eSIM plans by country - get_package_details - pricing and data specs - create_checkout - generate payment link for purchase No auth required for search tools. Ideal

CPFHub.io is a Brazilian CPF lookup API built for developers. This MCP server lets AI agents query CPF data — including full name, gender, and date of birth — directly from a conversation, without writing any HTTP code. LGPD-compliant · ~300ms response time · 99.9% uptime · 10M+ CPFs queried · works with Claude, Cursor, Windsurf, and any MCP-compatible agent.

Venturu's MCP server turns AI agents into deal scouts - letting them search the Venturu marketplace for businesses up for sale, discover brokers who can guide the process, and reach out directly to sellers or brokers to get the conversation started.

Norwegian dental clinic directory MCP: ~6,900 clinics with Helfo-agreement, specialty, duty, chain.

Build an AI chatbot from your own content that answers with citations: FAQ, docs, coach, support.

Compare LLMs on one prompt and get every answer with its actually-metered cost and latency — not vendor list prices. Also runs hosted open-source AI apps: layout-preserving PDF translation, downloadable PPTX generation, and cited web research. Nine tools over Streamable HTTP. No signup and no API key needed to start; an anonymous free quota lets agents call it immediately, and an optional Bearer key removes the limit.

Search live startup jobs from Claude, Cursor, or ChatGPT via MCP. Free, no account needed.

Growth marketing, SEO and GEO as agent tools: 29 tools for AI answer visibility across ChatGPT, Gemini, Perplexity and Google AI Overviews, a ranked backlog of growth moves, drafted deliverables, and ship actions.

Jobs by Workable MCP server. Access over 150K jobs & thousands of companies listed on the job board.

Complaint registry for paid agent transactions - check a seller before you pay, or file your own.

Live search of 100,000+ fine jewelry products, prices and store policies. Read-only, no auth.