"Understanding Sequential Thinking in Server Systems" matching MCP connectors:
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Find lookalike domains of a brand's website: typos, swapped letters, look-alike characters, added words and other TLDs. Shows which of them resolve in DNS and what their front page shows. One read-only tool, no sign-up. Registry name: com.openbait/lookalike-domains. Web version: https://openbait.com/tools/typosquat-check
An MCP server that allows an agent to find the vendor that a network interface MAC address is registered under and other information about the block like it's registered country, the registry type it is in, how many addresses are in it's block and a link with more information. Stateless MCP 2026-07-28 version support only.
Free *.pntr.dev dev subdomains — register subdomains, manage DNS and wildcard records, receive email on disposable inboxes, and capture HTTP requests for webhook debugging. OAuth sign-in; free tier.
Find the organization behind a MAC address or OUI prefix in the IEEE registries. No auth, no key.
Your agent needs to know what a site is built on and who owns it — or to find every site running a given technology. **What you can ask for** • "What is this site built on — CMS, analytics, payments, CDN?" • "Find every domain running Shopify in Germany." • "Who owns this domain, and when does it expire?" • "How many sites use this technology, and is that growing?" • "Find domains whose HTML contains this snippet." **How to use it** Point any MCP client at https://mcp.aisa.one/seo-domains/mcp and sign in with OAuth — there is no key to create or paste. 12 tools: technology detection for one domain, domains by technology, domains by HTML term, technology stats and aggregations, plus whois overview and its filters. **Why this rather than the source** Prospecting by tech stack and ownership lookup in the same call shape. **It is also a door to the rest** The same login reaches 26 sources and 580+ operations. Find the stack here, then ask the same agent for that company's traffic and the people to contact — without adding a second server. **What it costs** Finding and inspecting an operation is free. Running one is billed per call at API prices, with no seat and no monthly minimum, and every call takes max_price_usd so an agent cannot overspend by accident. **Where else it reaches** https://mcp.aisa.one/sales/mcp turns a technology list into a contactable pipeline. https://mcp.aisa.one/seo/mcp for all of it at once — rankings, keywords, backlinks, site health and AI-answer visibility across DataForSEO, Semrush and Ahrefs.
Join and verify records in the Weio participant registry (Ed25519 keys), run by AI agents at Weio.
Check a site's TLS certificate and its domain registration expiry. Read-only, no sign-in.
No-sign-up eSIMs for 200+ countries, phone-number eSIMs, domains and proxies. You approve payment.
Build and host a small business website: write its pages, move an existing site in, add a domain.
Free anonymous website, DNS, email and TLS checks, plus monitor read and opt-in write access.
Use when email lands in spam: audits SPF, DKIM, DMARC, MX and returns the DNS records to fix it.
Claim a working subdomain in one call — A, CNAME and TXT records. No domain to buy, no account.
Outside-in DNS, email security, SEO, GEO and app-link checks plus developer utilities.
Buy and manage residential, mobile and datacenter proxies in 170+ countries, prepaid per GB
Complete domain email-auth audit in one call: SPF with RFC 7208 lookup counting, DKIM selector pr...
Free owned-agent uptime monitoring, DNS domain proof, signed alerts and opt-in endpoint checks.
Nssnap is a technical community for hosting, domains, servers and AI, and this MCP server puts the whole platform in front of your agent: publish and search community posts, boards and comments, plus full control of free second-level domains on is-a.si and five more suffixes, including DNS zones, records, DNSSEC, transfers and renewals. Bearer token for the full toolset, or a keyless public search endpoint for anonymous queries.
Manage your Webshare proxies, usage, plans and billing. Sign in with OAuth, no API key.
The internet's largest queryable infrastructure graph — 7.39 billion nodes, 39 billion edges, 5.6 million threat-intelligence relationships. Pivot from any IP, domain, or ASN across DNS, BGP, WHOIS, GeoIP, and threat intel in a single Cypher query. Most threat-intel and OSINT APIs are point lookups: you ask about one indicator, you get one record. Investigations don't work that way — you start from one suspicious domain and need to trace its hosting, its sibling domains, its registrar, its email
Site crawl + tech stack + DNS + SSL + WHOIS — five web-intel layers in one MCP.
