"Free PostgreSQL Database Solutions" matching MCP servers:

Enables MCP-compatible clients to list verified free HTTP, SOCKS4, and SOCKS5 proxies, pick top-ranked ones, and summarize the current proxy snapshot through three read-only tools, without forwarding traffic or accepting arbitrary URLs.

High-performance TypeScript MCP server for MikroTik RouterOS management, enabling Claude, GPT-4, or any MCP-compatible AI to manage routers through natural language with dynamic API discovery, VPN management, and configuration backup.

Self-hostable MCP server for WhisperGraph — a graph of 7.39B nodes / 39B edges mapping DNS, BGP, GeoIP, WHOIS, and threat intelligence. Six read-only tools (Cypher query + schema introspection + threat assessment), six resources, eight investigation prompts. stdio and Streamable HTTP transports.

MCP server for managing remote servers via SSH, enabling command execution, file transfer, rsync, tunnels, health checks, backups, and database operations.

MCP server for IntoDNS.ai providing 36 free tools for DNS, DMARC, SPF, DKIM, BIMI, DNSSEC, MTA-STS, FCrDNS, blacklist and email security checks. Citation-grade report snapshots with content hashes. No API key required.

Domain security reconnaissance for AI agents — 13 tools (DNS+DNSSEC, SSL/TLS, HTTP security headers, SPF/DKIM/DMARC email auth, port scan, ASN, RDAP/WHOIS) plus a one-shot security_scan returning a 0–100 Health Score (A–F). Free, no API key.

MCP server that parses 3GPP .docx specifications into structured sections with full-text search, letting LLMs browse, search, and follow cross-references without a vector database.

Enables querying telecom routing data (LRN, CNAM, DNO, LERG, toll-free routing) directly from AI assistants like Claude, ChatGPT.

Enables agents to discover, rank, live-test, and cache free HTTP/HTTPS/SOCKS proxies, optionally filtered by country or protocol, returning the fastest working proxy and backups for routing requests through specific regions.

Enables AI agents to access a continuously updated list of verified free proxies and a rotating proxy server through the Model Context Protocol.

Enables MCP-speaking agents to claim and manage free subdomains under makes.fyi or agentdomains.co, including DNS records, HTTPS, URL forwarding, reverse proxying, and account management.

MCP server that lets AI agents use the Online Cyber Tools catalogue as a set of native MCP tools.

Hand a human a rich interactive UI by URL from any MCP client and get structured data back — forms, approvals, surveys, pickers, editable lists. Round-trip human-in-the-loop for agents.

Register free *.pntr.dev subdomains and manage them from your AI assistant — DNS records, wildcard DNS, disposable email inboxes, and HTTP request capture for webhook debugging. 15 tools over stdio; hosted endpoint also available.

Enables AI agents to perform passive reconnaissance, vulnerability intelligence, DNS analysis, and device search using Shodan's database of internet-connected devices, all from within your IDE.

Enables MCP clients to run real-time domain intelligence lookups over stdio, returning WHOIS/RDAP, DNS records, IP resolution, a 0–100 threat risk score, and an AI-written summary, with batch queries of up to 100 domains. All calls are delegated to a public REST API and metered against the caller's own environment-supplied API key, so no engine code, database, or stored data is required locally.

Six-layer website monitoring (uptime, performance, SSL, DNS, visual regression, content change) from Claude, Cline, and Cursor. Free tools (DNS lookup, SSL check, speed test, website checker) work without an account; monitor, incident, alert, and status-page tools use a personal API key.

14 utility tools via the PublicSoftTools API: QR code generation, PDF compress/merge/split/convert/unlock, cryptographic hashing (MD5/SHA-1/SHA-256/SHA-512), UUID generation, base64 encode/decode, secure password generation, IP geolocation, DNS records, SSL certificate check, and WHOIS lookup. Free tier: 1,500 calls/month.

A Model Context Protocol (MCP) server for managing port registrations on your computer. Keep track of which applications are using which ports, find free ports, and maintain a central registry of port allocations.

Enables AI agents to perform full-stack cloud operations across Alibaba Cloud and Tencent Cloud, including server management, project deployment, database queries, file operations, instance lookups, and DNS/CDN management through 26 tools.