ctlogs.dev — Certificate Transparency search
Search Certificate Transparency logs: subdomains, TLS certificates, organizations, CAs.
- tools
- 5
- transport
- HTTP
- last updated
- Nov 12, 2026
Tools
5 toolsPublic tool metadata for what this MCP can expose to an agent.
find_subdomainsList the hostnames found under a domain in TLS certificates: one row per hostname with the number of certificates and first/last seen dates.
List the hostnames found under a domain in TLS certificates: one row per hostname with the number of certificates and first/last seen dates.
No parameter schema in public metadata yet.
search_certificatesList TLS certificates issued for a domain name: id, matching names, issuer, serial number and validity dates.
List TLS certificates issued for a domain name: id, matching names, issuer, serial number and validity dates.
No parameter schema in public metadata yet.
search_organizationList TLS certificates whose subject organization matches a name, e.g. "PayPal, Inc.": id, subject common name, domains, issuer and validity dates.
List TLS certificates whose subject organization matches a name, e.g. "PayPal, Inc.": id, subject common name, domains, issuer and validity dates.
No parameter schema in public metadata yet.
get_certificateReturn the full record of one certificate: subject, issuer, serial number, validity, DNS names, key and signature details, the CT log entries that recorded it and download URLs for the certificate body.
Return the full record of one certificate: subject, issuer, serial number, validity, DNS names, key and signature details, the CT log entries that recorded it and download URLs for the certificate body.
No parameter schema in public metadata yet.
get_caReturn one issuing CA certificate by its SHA-256 fingerprint (the `issuer_ca` field of `get_certificate`): subject, issuer, validity, parent and cross-signed certificates, the number of certificates it issued and a page of them.
Return one issuing CA certificate by its SHA-256 fingerprint (the `issuer_ca` field of `get_certificate`): subject, issuer, validity, parent and cross-signed certificates, the number of certificates it issued and a page of them.
No parameter schema in public metadata yet.
Sponsors
Agent CaffeineSponsoredClose your lid, come back to finished work
SnugSponsoredThe clipboard manager for the AI eraPromote your product hereReach 125k+ visitors monthly
WaxSponsoredBlock anything with supervision, without erasing your iPhonePromote your product hereReach 125k+ visitors monthly
knobsSponsoredSee your site on any phone, any day, in any languageReadme
ctlogs.dev MCP server
A Model Context Protocol server for ctlogs.dev: search Certificate Transparency logs from an AI assistant or agent — subdomains, TLS certificates, organizations, CAs.
The server is hosted. There is nothing to install or run; point a client at
https://mcp.ctlogs.dev/mcp
(Streamable HTTP). It works at once without a key or an account.
Tools
Details
- Repository
- github.com/ctlogs/ctlogs-mcp
- Website
- ctlogs.dev
- Category
- Search & Web Crawling
- Transport
- HTTP
- Registry
- MCP registry, active
Related Search & Web Crawling MCP servers
View all
Discoverynexbid-dev/protocol-commerceSearch and discover advertiser products through an open marketplace for AI agents.0stars
Emailprimitivedotdev/primitive-mono-repoEmail infrastructure for AI agents — send, receive, search, and reply to email over MCP.0stars
Socialscrapesocialscraper/socialscrape-mcpSocial media data for agents: profiles, posts, comments, search, ads, transcripts.0stars
Mcp Servertrue402/mcp-serverPay-per-call AI + web + on-chain tools over x402 (USDC on Base): LLM, SEO, extract, token safety.0stars
Auto Skill Loaderdivitkashyap/auto-skill-loaderAuto-loads skills into agent sessions. MiniMax vision and search proxy.0stars
Bhutan Trips by Druk Asiaebizity/bhutan-trips-by-druk-asiaBhutan trip search & booking via the Druk Asia API: festivals, itineraries, flights, bookings.0stars