SHEETBASE_ENGINE_ONLINE
INTERNAL BETA
Sheetbase
Not a Wrapper
LLMs need structural integrity, not just an API proxy. Sheetbase executes raw Postgres queries against live sheet data via an ephemeral JSONB engine. Zero context pollution. Fail-closed safety.
MCP Client
Node.js
JSONB Engine
Sheets API
0%
Ephemeral Execution
Observe live queries against the synced Google Sheet replica.
Supabase SQL Engine
Live Sheet Sync
A
B
C
1
USER_01
Active
Premium
2
USER_02
Pending
Free
3
USER_03
Active
Pro
4
USER_04
Inactive
Free
5
USER_05
Active
Enterprise
Security Boundaries
Dual-auth architecture ensuring AI agents never possess raw Google tokens.
Human Operator (Google)
Identity-only Google sign-in creates the dashboard session. Sheets and Drive access is granted later through separate Workspace consent, with those tokens stored in the Better Auth account table.
Identity-only Google sign-in
Separate Workspace consentaccount.accessToken
MCP Client (API Keys)
AI agents send dashboard-generated API keys with x-api-key. OAuth clients use a separate Bearer access token. Mixed credentials fail closed.
x-api-key: sk_mcp_...
Security BoundaryauthenticateMcpRequest()