"A tool or technique to improve prompt writing" matching MCP connectors:

Validate Cốc Cốc Bot IP addresses. Remote MCP validate_ip tool.

Validate PerplexityBot IP addresses. Remote MCP validate_ip tool.

Validate Yahoo! Slurp IP addresses. Remote MCP validate_ip tool.

Validate whether an IP address belongs to YandexBot. Remote MCP server exposing a validate_ip tool.

Validate whether an IP address belongs to Applebot. Remote MCP server exposing a validate_ip tool.

Validate Naver Yeti IP addresses. Remote MCP validate_ip tool.

Validate Baiduspider IP addresses. Remote MCP validate_ip tool.

Validate whether an IP address belongs to Googlebot. Remote MCP server exposing a validate_ip tool.

Validate Meta-ExternalAgent and Meta-WebIndexer IP addresses. Remote MCP validate_ip tool.

Validate whether an IP address belongs to Bingbot. Remote MCP server exposing a validate_ip tool.

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

Validate ClaudeBot and Claude-SearchBot IP addresses. Remote MCP validate_ip tool.

Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.

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

Check a domain's registration status, or watch it for expiry, deletion, and availability.

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

Provides capabilities that let LLM agents perform a range of infrastructure management tasks.

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

Gives AI agents a public IPv6 identity, hostname, port forwarding, web fetch, team mesh. Free tier.

AgentDomain MCP — Register, buy, and manage internet domains for AI agents. Search available domains across 500+ TLDs, check prices, purchase instantly via Cloudflare, manage DNS records (A, CNAME, MX, TXT), get EPP transfer codes, and handle wallet payments. 13 tools, no API key required to start — just register and go.