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ctlogs.dev — Certificate Transparency search MCP

v1.1.0

dev.ctlogs/certificate-transparency

Search Certificate Transparency logs: subdomains, TLS certificates, organizations, CAs.

transport:streamable-http tools:5

Target client

run in your project directory

claude mcp add --transport http certificate-transparency https://mcp.ctlogs.dev/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

find_subdomains Read-only

find subdomains

get_ca Read-only

get ca

get_certificate Read-only

get certificate

search_certificates Read-only

search certificates

search_organization Read-only

search organization

All 5 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.