"Methods to reduce API call frequency" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Free MCP server of security & dev API tools -- supply-chain, CVE, DNS, WHOIS, OFAC, Cosmos SDK.
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.
WHOIS/RDAP lookup, IP geolocation and Punycode conversion. 1400+ TLDs incl. IDN. No API key.
Search and retrieve reviewed proxy documentation, generate tested configuration examples, and diagnose structured proxy errors. No API key is required.
DNS and email security: check SPF, DKIM, DMARC, DNSSEC, DANE and build the records. 45 tools.
Domain security reconnaissance tools for AI agents via Model Context Protocol. 13 security tools — DNS, SSL, HTTP headers, email auth, port scan, propagation, reverse DNS, ASN/BGP, RDAP/WHOIS, subnet calc, and comprehensive security scan — callable from Claude Desktop and any MCP-compatible AI agent. Part of DechoNet. Every tool here is also a free web tool at dechonet.com — no sign-up, no API key — backed by error-fix guides. This package brings the same checks to AI agents.
Rights-aware censorship, China-economic status, and tamper-evident AI evaluation tools.
Email posture for any domain: can it receive mail, can it be spoofed? MX, SPF and DMARC.
Live DNS lookups for agents: A/MX/TXT/SPF/CNAME/PTR with TTLs and DNSSEC, via Google Public DNS.
Dedicated static outbound IPv4 over WireGuard. Free 7-day trial, no card, no sales call.
27 x402 agent utilities with free routing and an AveDaris machine Discovery Beacon.
Claim a working subdomain in one call — A, CNAME and TXT records. No domain to buy, no account.
Custom domains API for SaaS: connect, verify, and manage customer domains, SSL, and DNS
Domain search MCP: .com names verified available live via Verisign RDAP - not AI guess lists
Free IP risk and geolocation lookup: proxy, VPN and datacenter detection. No API key.
ドメインの設定を調べる MCP サーバー。SPF / DKIM / DMARC・DNS・SSL 証明書・セキュリティヘッダ・サブドメイン・類似ドメインを、公開情報だけで確認します。登録不要・無料。
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key
Normalized JSON for any domain across 1,200+ TLDs, reading WHOIS where no RDAP server exists.
IP geolocation, ASN and network data, plus VPN, proxy and Tor detection. ASN tools need no key.
29 pay-per-call DNS, SEO, SSL, security, and dev tools for AI agents. x402, no API key.
