"Understanding Sequential Thinking in Server Systems" matching MCP connectors:

Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.

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

Analytical memory for AI agents: a real Postgres queried in plain English over MCP. One command.

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

Free, open MCP server for The Urantia Papers. 197 papers, 14,500+ paragraphs, 4,400+ entities.

Read any page or file as clean text, plus live news, weather, market holidays and timezone lookups for agents. Pay-per-call in USDC on Base via x402 — no signup, no API keys.

Russian company lookup (EGRUL/INN), Cyrillic search, RU page to Markdown. Pay per call in USDC.

Scores a business's online presence 0–100 and names the top issues to fix — search visibility, whether AI assistants can read and recommend it, speed and first impression, trust, and how easy the business is to reach. Give the scan_website tool a URL and it returns the score with the top issues, in chat. English and Arabic. By BottleTech (bottletech.net).

Official MCP: continuous supply-chain risk monitoring and early warning, not a one-off report. Register and create a key at https://supplygraph.ai/zk_chat_os/dashboard/dashboard.html — if you are not signed in you will be redirected to login; new users can register there. After login, open A2A / MCP and click Create Production Key or Create Sandbox Key. Send the header as Bearer <api_key> (one Bearer prefix, then the raw key). Optional for initialize and tools/list; required for tools/call.

Check how much real depth Armasourcing's vetted Filipino virtual assistant pool has for a specific role, skills and timezone, and understand how hiring and engagement work. Returns aggregate pool statistics only, no candidate names, no profiles, and no pricing, and ends in a free discovery call booking.

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

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

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

Ask questions across Shopify, Klaviyo, GA4 and 20+ e-commerce sources in plain English.

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

Free walking tours & activities in 1,000+ cities — live availability, ratings & booking links.

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.

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

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