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Business productivity ⇄ Database

Notion to Supabase integration — real-time, two-way sync

Keep Notion and Supabase in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.

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Why teams connect Notion and Supabase

Mirror Notion's data into Supabase so your own code can read and write it like any other table, with changes flowing both ways in seconds.

Engineers integrate with tools like Notion through APIs, which means auth, pagination, rate limits, webhooks, and retry logic, all maintained forever and all different for every tool. Meanwhile the data would be trivial to use if it simply lived in Supabase.

Stacksync mirrors Users, Comments, Files and attachments, Pages from Notion into Storage Object Metadata, Tables, Views, Schemas in Supabase and keeps both sides in sync in real time. Your services query the database directly, and inserts or updates your code makes flow back into Notion, so the tool and the database never disagree.

Common use cases

  • 01 Sync a Notion content-calendar database with Jira or Linear by mapping status and date properties both directions.
  • 02 Read Notion wiki Pages and their Blocks into a database or search index for internal knowledge retrieval.
  • 03 Mirror billing and subscription records into Supabase tables the application can join directly
  • 04 Reflect auth.users state into support and CRM systems so teams see account status without querying the database

Common sync patterns

One integration pattern for the whole stack

Every synced tool looks the same from the database, so each new integration is configuration, not a new codebase.

Read Notion with a query

Records from Notion are ordinary rows in Supabase; join them, index them, and use them in application logic without touching the vendor API.

Automate Notion from your codebase

Write to the synced tables in Supabase and Stacksync propagates the change into Notion, replacing custom integration code.

What you can sync between Notion and Supabase

Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.

Notion objects Supabase objects How this pairing syncs
Users Workspace members and bots referenced by people properties; read-only — users cannot be created or invited through the API. Database Functions Postgres functions that can transform or validate synced rows. Users is specific to Notion and Database Functions to Supabase — each maps to any object or custom field on the other side.
Comments Page and inline discussion threads; can be read and created, useful for surfacing Notion activity in another system. Storage Object Metadata File metadata rows that can be joined to synced application data. Comments is specific to Notion and Storage Object Metadata to Supabase — each maps to any object or custom field on the other side.
Files and attachments File-property and file-block values. Notion-hosted URLs are temporary and expire, so files are re-fetched or copied at sync time. Tables Standard Postgres tables; the primary two-way sync target. Files and attachments is specific to Notion and Tables to Supabase — each maps to any object or custom field on the other side.
Pages The core content unit and also every row of a database; synced two-way as records, with typed properties mapping to table columns. Views Read-side projections exposed to outbound syncs. Pages is specific to Notion and Views to Supabase — each maps to any object or custom field on the other side.
Databases / Data sources Collections of pages with a typed property schema. Since the 2025-09-03 API a database is a container holding one or more data sources; syncs target a specific data_source_id. Schemas Namespaces (public and custom) that scope sync access. Databases / Data sources is specific to Notion and Schemas to Supabase — each maps to any object or custom field on the other side.
Properties Typed columns on a page — title, rich_text, number, select, multi_select, date, people, relation, status, checkbox, URL. Read and written both ways. auth.users Managed authentication users, often mirrored into CRM or support systems. Properties is specific to Notion and auth.users to Supabase — each maps to any object or custom field on the other side.

How changes propagate between Notion and Supabase

Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.

Notion Supabase Sub-second propagation

DetectionNotion notifies Stacksync of record changes through webhook events. Workspace webhooks (page.created, page.content_updated, data_source.schema_updated, comment.created.

DeliveryEach detected change is applied to Supabase as a row-level write, with types converted between the two schemas.

Supabase Notion Sub-second propagation

DetectionSupabase pushes changes as they happen — webhook events backed by change data capture. Log-based CDC via Postgres logical replication, the same WAL feed that powers Supabase Realtime.

DeliveryEach detected change is written to Notion through its API, with automatic retries and rate-limit backoff.

Rate-limit considerations

  • Notion: Average of ~3 requests/second per integration with some bursts; 429 with a Retry-After header when exceeded. Payloads capped at 500 KB and 1000 block elements.
  • Supabase: SQL access is bounded by connection limits (pooled connections are provided); the REST layer is subject to the platform's limits.
What ships with Notion ⇄ Supabase

Connect Notion and Supabase for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Notion–Supabase connection.

Real-time

Two-way sync

Changes in Notion or Supabase instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Notion or Supabase data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.

At scale

Event queues

Handle millions of events per minute without losing a single Notion or Supabase record.

Observability

Monitoring

Track your Notion ⇄ Supabase sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions between Notion and Supabase.

How the Notion and Supabase connectors work

Notion

Integration surface
REST API (api.notion.com/v1)
Authentication
OAuth 2.0 for public integrations, or an internal integration secret (bearer token); every request must send a Notion-Version header
Change detection
Workspace webhooks (page.created, page.content_updated, data_source.schema_updated, comment.created; HMAC-SHA256 signed) plus polling on each page's last_edited_time
Capabilities
read · write · webhooks
Rate limits
Average of ~3 requests/second per integration with some bursts; 429 with a Retry-After header when exceeded. Payloads capped at 500 KB and 1000 block elements.

Supabase

Integration surface
Direct PostgreSQL wire protocol connection, plus an auto-generated REST API (PostgREST)
Authentication
Database credentials (connection string) for SQL access; API keys (anon / service role) for the REST layer
Change detection
Log-based CDC via Postgres logical replication, the same WAL feed that powers Supabase Realtime; database webhooks can also fire on row changes
Capabilities
read · write · CDC · webhooks
Rate limits
SQL access is bounded by connection limits (pooled connections are provided); the REST layer is subject to the platform's limits
How it works

How to connect Notion to Supabase — three steps, no code

Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.

  1. 01

    Connect your apps

    Authenticate Notion and Supabase with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.

    • OAuth 2.0
    • SSH tunnel
    • VPC peering
    Notion connected
    Supabase connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the Notion and Supabase objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.

    • Standard objects
    • Custom objects
    • Auto-schema
    objects · Notion ⇄ Supabase
    Customers 12,480
    Sales Orders 8,213
    Invoices 5,902
    Items 1,344
  3. 03

    Map fields

    Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.

    • Auto-map
    • Type casting
    • Transforms
    Notion Supabase
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

Notion and Supabase integration FAQ

SECURITY

Security teams trust Stacksync

As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.

Learn more about security
SOC 2 Type II
ISO 27001
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GDPR
CCPA
CSA STAR
DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS

SSO & SCIM

Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.

Alerts

Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.

Secure connection options

Securely connects to your systems with:

OAuth 2 SSH Tunnelling SSL certificates IP Whitelisting VPN gateway VPC peering and more

Related integrations

Every pair below is a real-time, two-way sync. Search all 545 integrations available for Notion and Supabase.

Popular · 8 of 545
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