whois-mcp-server
An MCP server that provides WHOIS lookup capabilities to AI agents (e.g., to query domain registration/registrar and related WHOIS records) via MCP tools.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Security posture depends on how the MCP server is implemented and hosted (network exposure, transport security, and whether any upstream WHOIS credentials/API keys are used). No repository details were provided, so scores are necessarily conservative and based on common patterns for self-hosted MCP tool servers.
⚡ Reliability
Best When
You need automated WHOIS lookups integrated into an agent workflow and can tolerate variability/inconsistency in WHOIS responses across TLDs/registries.
Avoid When
You have strict requirements around data accuracy/consistency, or you need predictable pagination/structured datasets across all WHOIS sources.
Use Cases
- • Domain reconnaissance for security investigations
- • Checking domain registration/expiration details
- • Supporting OSINT workflows in automated agents
- • Enriching datasets with WHOIS-derived fields
Not For
- • High-volume bulk WHOIS scraping at scale (may violate registrar/WHOIS terms or rate limits)
- • Use as the sole source of truth for compliance or legal determinations
- • Applications that require a formal paid/regulated data product with guaranteed accuracy
Interface
Authentication
No authentication requirements were provided in the input. Many MCP servers do not require auth if self-hosted, but this can’t be confirmed without the repository/manifest details.
Pricing
Pricing cannot be determined from the provided package name alone.
Agent Metadata
Known Gotchas
- ⚠ WHOIS responses vary widely by TLD/registry and may be incomplete or differently formatted.
- ⚠ Some WHOIS endpoints/rate limits may throttle or block automated queries; agents may need backoff and caching.
- ⚠ WHOIS data can be inconsistent; agents should validate/normalize fields and handle missing values gracefully.
Alternatives
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Scores are editorial opinions as of 2026-04-04.