Robtex Claude Code Plugin

Robtex provides free DNS, IP, ASN, and passive DNS history lookups since 2013, plus Bitcoin blockchain, Lightning Network, and threat intelligence data. This plugin gives Claude Code (and other MCP-capable agents) direct access to all of it. Full site: https://www.robtex.com/ · API docs: https://freeapi.robtex.com/api-docs.json

Claude Code plugin for DNS, IP intelligence, Bitcoin blockchain, Lightning Network, and threat intelligence, powered by Robtex.

Install

Option 1: Skills CLI (universal — works with Claude Code, Cursor, VS Code, Codex, and more)

npx skills add robtex/skills

Option 2: Claude Code native plugin

# Step 1: Add the marketplace
/plugin marketplace add https://github.com/robtex/skills

# Step 2: Install the plugin
/plugin install robtex@robtex-plugins

Option 3: Direct MCP server (no skills, just tools)

claude mcp add --transport http robtex https://mcp.robtex.com/mcp

Skills

Skill	Usage	Description
robtex-investigate	/robtex-investigate 8.8.8.8	Full investigation — DNS, IP intel, reputation, threats, routing
robtex-dns	/robtex-dns example.com	DNS records, passive DNS history, infrastructure
robtex-crypto	/robtex-crypto bc1q...	Bitcoin address/tx/block lookup, Lightning node analysis
robtex-threat-scan	/robtex-threat-scan evil.com	Blocklist scan (100+ DNSBLs), reputation, threat feeds
robtex-network-map	/robtex-network-map AS15169	AS prefixes, routing, WHOIS, network mapping
robtex-email-check	/robtex-email-check user@example.com	SMTP verification, SPF/DMARC, disposable detection

What's included

The plugin connects to mcp.robtex.com which provides 50+ tools:

• DNS (18 tools) — forward/reverse lookups, passive DNS, per-record-type queries
• IP/AS (10 tools) — geolocation, reputation, BGP routing, AS info, MAC vendor lookup
• Domain (6 tools) — reputation, ranking, blocklists, shared infrastructure, RDAP
• Hostname (4 tools) — parsing, subdomain detection, TLD info
• Bitcoin (6 tools) — address, transaction, block lookup, blockchain stats
• Lightning (6 tools) — node/channel lookup, peer recommendations, alias search
• Email (1 tool) — SMTP verification with catch-all and TLS detection

Examples

# Investigate a suspicious IP
/robtex-investigate 185.220.101.34

# Check DNS for a domain
/robtex-dns cloudflare.com

# Look up a Bitcoin address
/robtex-crypto 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa

# Scan for threats
/robtex-threat-scan badactor.com 192.168.1.1

# Map Google's network
/robtex-network-map AS15169

# Verify an email
/robtex-email-check admin@example.com

IDE rules

Copy-paste rule templates that teach IDE AI agents (Cursor, Windsurf, Cline, Roo Code, Continue.dev) to call the Robtex MCP instead of hallucinating DNS, IP, AS, Bitcoin, and Lightning data. See rules/README.md for an overview and a submission checklist.

• rules/cursorrules.md — .cursorrules for Cursor
• rules/windsurfrules.md — .windsurfrules for Windsurf
• rules/clinerules.md — .clinerules for Cline
• rules/roorules.md — .roorules for Roo Code
• rules/continuerules.md — .continue/rules.md for Continue.dev

Links

• Robtex — DNS, IP, and network intelligence
• hashxp.org — Bitcoin and Lightning Network explorer
• rbls.org — IP and domain reputation
• dns.ninja — DNS analysis
• MCP Server docs