Supabase security guides
Each AI app builder wires Supabase up its own way, so each one leaks data its own way. Pick your builder for a step-by-step guide, or start with the Postgres guides, which apply to every Supabase app.
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Postgres best practices
Supabase Row Level Security: how to turn it on and get it right
Turn on RLS, write one policy per command, test as a real user and avoid the five policy mistakes that leak data in Supabase apps.
How to make Supabase RLS policies fast
Make Supabase RLS fast: wrap auth.uid() in a select, index policy columns, name the role, avoid joins in policies and filter in the query too.
Multi-tenant RLS in Supabase: keep each team's data apart
Isolate teams and orgs in Supabase with a memberships table, tenant_id on every row, app_metadata claims and tests that prove one tenant cannot read another.
Supabase API keys: which key goes where, and what to do when one leaks
Which Supabase key goes where: publishable and anon keys in the browser, secret and service_role keys only on servers, and what to do when one leaks.
Views and functions that bypass RLS, and how to lock them down
Stop Supabase views and RPC functions from bypassing RLS: use security_invoker views, a private schema, an empty search_path and revoked execute rights.
Postgres indexing on Supabase: what to index and how to check it
Index foreign keys and RLS columns, pick B-tree, GIN or partial indexes, order composite columns right and confirm the plan with explain analyze.
Supabase connection pooling: which connection string to use
Use Supavisor transaction mode (port 6543) for serverless and edge functions, session mode for long-lived servers, and turn off prepared statements.
Pagination in Supabase: use keyset, not offset
Replace offset pagination with keyset (cursor) pagination in Supabase and Postgres: faster deep pages, stable results and an index that matches.
Postgres schema design for Supabase apps: rules that prevent bugs
Schema rules for Supabase: uuid keys, timestamptz, numeric for money, check constraints, jsonb, private schemas and RLS in the same migration.
Guides by platform
How to secure a Lovable app's Supabase backend
Check RLS, secrets and edge functions in a Lovable + Supabase app: where Lovable stores keys, what its scans check and what to test before you publish.
How to secure a Bolt.new app's Supabase database
Connect Supabase to Bolt.new safely: turn on RLS for every table, remove always-true policies, check edge functions and run Bolt's security checks.
How to secure a v0 + Supabase app
Add Supabase to a v0 app, then check the SQL v0 runs for RLS, keep the secret key out of NEXT_PUBLIC_ variables and guard every Server Action.
How to use Cursor with Supabase without leaking data
Connect the Supabase MCP server to Cursor with one project and read-only mode, keep secret keys out of client variables, and review RLS before you apply it.
How to use Claude Code with Supabase safely
Add Supabase's MCP server to Claude Code with read-only access to one project, keep secret keys out of the client and review every RLS policy it writes.
How to secure a Replit app that uses Supabase
Connect a Replit app to your own Supabase project safely: store keys in Replit Secrets, limit Agent's database access and turn on RLS for every table.
How to secure Supabase when Windsurf's agent writes the code
Add the Supabase MCP server to Windsurf with one project and read-only mode, keep secret keys out of the client, and enable RLS in every migration.
How to secure a Supabase app built with GitHub Copilot
Configure Supabase's MCP server for GitHub Copilot in VS Code or the CLI with one project and read-only mode, keep secret keys out and check every policy.
How to secure your own Supabase project in a Base44 app
Base44 uses its own backend. If you connect Supabase, keep the key in Base44 secrets, check the caller in every backend function and enable RLS everywhere.
How to secure a Softgen + Supabase app
Set Softgen's three Supabase variables safely, keep the service role key server-only, turn on RLS for every table and check what ships to the browser.
How to secure a Rork mobile app's Supabase backend
Connect Supabase to a Rork mobile app safely: protect every table with RLS, verify edge functions, test changes before they go live and rotate keys.
How to secure a Same.new + Supabase app
Connect Supabase to Same through MCP safely: scope the connection, turn on RLS for every table Same creates and keep secret keys out of client code.
How to connect Supabase to Anything without opening your data
Connect Supabase to an Anything app through backend Functions, keep the secret key there, check the caller in every Function and enable RLS on every table.
How to secure your own Supabase project in an Emergent app
Emergent defaults to managed MongoDB. If you connect your own Supabase project, keep secret keys off the frontend and enable RLS on every table the agent makes.
How to secure a Supabase app you build with Tempo
Review Tempo agents' pull requests for Supabase migrations without RLS, audit apps from the legacy web editor and keep secret keys out of client code.
How to secure your own Supabase project in a Firebase Studio app
Firebase Studio defaults to Firestore. If you connect your own Supabase project, use only the publishable key in the client and enable RLS on every table.
Find out if someone is abusing your app
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