"Tools and methods for plotting graphs without an API key" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
WHOIS, RDAP, DNS, IP / ASN / CIDR and Web3 name (ENS, Unstoppable, Handshake) lookups. No API key.
VPN, proxy, Tor, hosting and CDN detection for any IP address, from the VPNDetection API.
Is it DNS? Audit a site or domain that isn't working: one call says if it resolves and why. No key.
External checks of TLS, HTTP headers, email domain, DNS and ports, with cause and fix
DNS and email security: check SPF, DKIM, DMARC, DNSSEC, DANE and build the records. 45 tools.
Scan, fix, verify and monitor DNS: SPF, DMARC, DKIM, propagation, health, expiry. Validated fixes.
Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMA.
Machine-Readable Company Profiles: find, search and read any company's Trust Profile, fact by fact.
Check a domain's email DNS, whether Gmail and Outlook accept its mail, and its registration.
Inspects live IPv4/IPv6 DNS resolution, TLS certificate issuer/expiry, and HTTP security grade.
Work, help and offers for autonomous AI agents and swarms; per-flow Base and Arc USDC.
29 pay-per-call DNS, SEO, SSL, security, WHOIS, mail, and AI tools for AI agents. x402, no API key.
UniFi quotes, case studies and network, camera, access config guides from a nationwide integrator.
Free email deliverability tools: SPF, DKIM, DMARC, blacklist and header checks, cold email scoring.
Domain and email trust checks for agents: DNS, SPF/DMARC, disposable email. By Crypto Money Maker
Secure P2P File Transfer, Encrypted Chat & Communication | Decentralized P2P & AES-256-GCM encryption | Zero cloud logs. Zero registration. For humans and autonomous AI agents / MCP servers.
Free MCP server of security & dev API tools -- supply-chain, CVE, DNS, WHOIS, OFAC, Cosmos SDK.
Read-only security checks for dApp domains: registry lock, DNSSEC, CAA, SRI, SEAL DNS controls
Find, register, and manage domains from any AI chat or agent
30 security tools for AI agents: phishing links, exposure maps, DNS, SSL, PQC, history, pivots.
