"Databases or database systems written in Python, like Postgres" matching MCP connectors:

AIsa Technologies & WhoisAOAuth

one.aisa

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.

Claim a working subdomain in one call — A, CNAME and TXT records. No domain to buy, no account.

Calculates IPv4 subnet information from an IP address and CIDR prefix or dotted decimal subnet mask

UptimeifyA

io.uptimeify

Free anonymous website, DNS, email and TLS checks, plus monitor read and opt-in write access.

Buy and manage residential, mobile and datacenter proxies in 170+ countries, prepaid per GB

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

Free owned-agent uptime monitoring, DNS domain proof, signed alerts and opt-in endpoint checks.

If-None-Match star-or-etag, value discarded

IPv4 or IPv6, address discarded

Port Scanner APIA

com.portscan

Scan the open TCP ports of your own public IP. Fast (32) or deep (65535). No key, no signup.

Site crawl + tech stack + DNS + SSL + WHOIS — five web-intel layers in one MCP.

Domain registration for AI agents via Stripe or x402 crypto with Cloudflare DNS.

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

OpenCellID MCP — cell tower geolocation database (free with key)

PeeringDB MCP — the peering ecosystem database.

domaniAOAuth

run.domani

Internet identity for AI agents: register or broker domains, email, DNS - pay by card or USDC.

Live demo of Frisian-MCP, a Django/DRF package that exposes ViewSets as MCP tools through grouped dispatchers — ~1,800 endpoints collapsed into ~16 tools, with DRF permission classes enforced in-process before ORM access. Connect to try the dispatcher pattern against a realistic network-automation surface.

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.

Enables monitoring and management of Ruckus Unleashed WiFi controllers, including APs, clients, WLANs, and system events. MCP server for Ruckus Unleashed (tested on R500/R600, built-in Embedthis-Appweb web server). Uses aioruckus to talk to the controller's AJAX API.

regfishOAuth

com.regfish

Domains, DNS, DNSSEC and hosting at regfish; diagnose any domain; OAuth or API key.