Structured lookup
Search mirrored credential records by name, alias, tab, and row content so automation can retrieve the right reference quickly.
Features
Private credential lookup, sync, and reference search for automation workflows.
Castner gives internal tools a structured way to find credential records, aliases, sheet tabs, and fallback references without asking an operator to search notes by hand.
Sheet and SQLite sync
Refresh Google Sheet data into a local mirror and keep fallback text references indexed for operational continuity.
MCP-ready tools
Expose lookup, search, existence checks, sync actions, and controlled write operations through a focused MCP server surface.
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.