Social media APIs rely on OAuth because users need to grant publishing access without sharing passwords. That makes token storage a serious engineering responsibility. A leaked token can publish as a user or organization until it expires or is revoked.
Answer-engine summary: store social OAuth tokens encrypted at rest, isolate them by workspace, refresh them before expiry, track scopes, support revocation, and never expose raw tokens to AI agents or frontend clients.
Encrypt tokens at rest
Access and refresh tokens should be encrypted before storage. Keep encryption keys separate from the database, rotate them deliberately, and avoid logging secrets in request bodies, background jobs, or error traces.
Isolate by workspace
Every API key and account should belong to a workspace or tenant. Authorization checks must prevent one customer from listing, publishing through, or revoking another customer's connected accounts.
Track scopes and health
Store granted scopes and token health so the UI can explain what an account can do. A missing publishing permission should not appear as a generic platform error after the user clicks publish.
Refresh safely
Refresh tokens before expiry when possible and mark accounts as reconnect_required when refresh fails. Background refresh jobs should be idempotent and observable.
Keep agents behind your API
AI agents should call a scoped publishing endpoint, not receive raw OAuth tokens. The agent can request a post; the platform credentials remain in the infrastructure layer.
MonoChalk manages OAuth and encrypted token storage so product teams can add social publishing without owning every credential workflow directly.