Bearer-token access
Operational tools require authorized MCP/API access before reading or changing credential records.
Security
Private by design: public pages explain the service, protected routes handle sensitive data.
The marketing surface does not show credential values, source paths, tokens, usernames, private keys, or admin access notes.
No public credential inventory
Public visitors only see product explanations; record lookup, sync, export, and write operations stay behind authenticated tooling.
Reference boundaries
Structured sheet records, local mirror rows, and fallback text matches are handled as internal automation data.
Private credential lookup server, MCP credential search, Google Sheets sync, SQLite mirror, and automation reference discovery
Castner is for teams searching for private credential lookup, MCP credential server, internal secret reference search, Google Sheets credential sync, SQLite credential mirror, operations knowledge base lookup, automation credential discovery, alias search, infrastructure access references, and controlled credential record updates.
Use it when deployment tools, maintenance scripts, internal assistants, or operations workflows need reliable credential context without exposing sensitive records on public pages.