"Setting Up or Using an MQTT Server" matching MCP connectors:

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

Read-only MCP server for the OrchestKit docs: full-text search + Markdown fetch. No auth.

Find 76,000+ curated healthcare service vendors across 25 categories and all 50 US states.

SEO research SaaS exposed as 30+ MCP tools. Forge niche analysis, plans, and writer-ready briefs.

Grounded, citable access to declassified UAP/UFO government records — 13,929 documents from Project Blue Book, the FBI Vault and national-archive releases, with extracted PDF text, plus 28,314 geocoded sighting records drawn from the US National Archives, the UK National Archives, France's CNES/GEIPAN and the Hatch catalogue. Offers both keyword and embedding-based semantic search, cross-links between commentary and the primary sources behind it, and reported-entity profiles where every claim carries a citation into the archive. All 14 tools are read-only, and every result returns the URL of the record it came from, so an agent's answer can be checked against the original rather than taken on trust. Free tier: 50 calls per day, no card required.

AI URL safety validator: SAFE/SUSPICIOUS/DANGEROUS verdict, trust score, threat intel.

AMZScout Skill + MCP gives AI agents live access to real Amazon marketplace data across 14 Amazon marketplaces. Analyze any ASIN, validate product ideas, research niches, compare competitors, discover profitable keywords, and build data-driven PPC strategies using trusted Amazon insights instead of AI assumptions. Works with Claude, ChatGPT, Cursor, and any other MCP-compatible AI client. To connect, you'll need an AMZScout API plan and authorize your account. Get access and view pricing here: https://learn.amzscout.net/amazon-product-api-for-ai-agents

Government tender search for AI agents. UK, EU and US procurement opportunities.

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.

First German florist with a public MCP server. Search bouquets and order flowers via AI in Munich.

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

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

Verified US local service providers across 10 home-services trades. Ratings, hours, no API key.

Federated commerce search across independent WooCommerce merchants. Keyless, read-only MCP server.

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.

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.

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.

A semantic search server that gives AI assistants instant access to Dodo Payments documentation and knowledge base.

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.

MCP server for GOV.UK — search, content retrieval, organisation lookup, and postcode resolution.