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Data warehouse

Connect ClickHouse to any app with two-way sync.

Two-way sync ClickHouse across all your CRMs, databases, data warehouses, EDI systems, and AI tools, with custom workflows tailored to your data.

  • SOC 2 and 6 other compliance frameworks
  • POC with real engineers in minutes

Adopted by fast-scaling companies moving mission-critical data in real time

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Object catalog

What Stacksync syncs in ClickHouse.

These objects sync between ClickHouse and any connected system, with field-level mapping and conflict resolution. Custom fields are picked up from the live schema where ClickHouse exposes them.

Tables (MergeTree family)
Columnar, append-optimized tables that serve as the destination for high-volume sync loads.
Databases
Namespaces that group tables and scope permissions for sync users.
Views
Saved queries used as curated, read-only sync sources.
Materialized views
Insert-time transformations that reshape incoming synced rows into aggregates.
Distributed tables
Query-routing tables over cluster shards in self-managed deployments.
Dictionaries
In-memory lookup structures refreshed from external sources, sometimes fed by syncs.
API surface

How Stacksync connects to ClickHouse.

The connector runs on ClickHouse's native API. Stacksync manages authentication, rate limits, retries, and schema changes so your team does not maintain integration code.

Connection
Native TCP protocol and HTTP interface; standard SQL dialect, with MySQL and PostgreSQL wire compatibility available
Authentication
Database credentials (username/password); ClickHouse Cloud issues per-service credentials over TLS
Change detection
No log-based CDC for consumers; incremental reads use polling on monotonic columns, and ClickHouse is usually the destination rather than the source

Sync directions

  • Read Supported
  • Write Supported
  • Change data capture Not available
  • Webhooks Not available
What ships with ClickHouse

Connect ClickHouse for flexible, real-time data sync.

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

Real-time

Two-way sync

Changes in ClickHouse instantly reflect across connected systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever ClickHouse 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 ClickHouse record.

Observability

Monitoring

Track your ClickHouse sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions.

Use cases

What teams run on the ClickHouse connector.

ClickHouse is chosen by data and platform engineering teams that need sub-second analytics over very large, append-heavy datasets - product analytics, observability, real-time dashboards. It sits downstream of operational systems as the analytical serving layer, and its data gravity compounds as MergeTree tables accumulate the event history that internal tools and customer-facing analytics query.

  • Data engineering
  • Analytics engineering
  • Platform engineering

  1. Stream operational records from Postgres, MySQL, or a CRM into ClickHouse for real-time analytics dashboards.

  2. Land product event data alongside synced CRM accounts so analysts join usage and revenue in one place.

  3. Sync aggregated ClickHouse query results back into operational tools, such as account-level usage metrics into a CRM.

  4. Consolidate logs and business records from multiple sources into MergeTree tables for retention and reporting.

  5. Continuously replicate operational data (CRM, billing, ERP) into MergeTree-family Tables so analysts query fresh data without hitting source-system APIs.

  6. Feed Distributed tables across a cluster for large-scale event analytics while Materialized views maintain pre-aggregated rollups as rows land.

All ClickHouse integrations

Pick the system you need to keep in sync with ClickHouse. Each page covers the sync setup, field mapping, and common workflows for that pair.

CRM · 45

ERP · 38

Database · 50

Data warehouse · 28

Business productivity · 40

Accounting and finance · 17

How it works

Set up ClickHouse in minutes, without APIs.

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 ClickHouse with its 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
    ClickHouse connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the ClickHouse objects to sync — Stacksync auto-detects the schema, 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 · ClickHouse
    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
    ClickHouse database
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

ClickHouse connector FAQ

What can I sync with the ClickHouse connector?

ClickHouse's core objects — Tables (MergeTree family), Databases, Views, Materialized views and custom fields — can sync with any of 302 other systems. Every integration is real-time and bidirectional, with field-level mapping and conflict resolution.

How does Stacksync connect to ClickHouse?

Via Native TCP protocol and HTTP interface; standard SQL dialect, with MySQL and PostgreSQL wire compatibility available, authenticated with Database credentials (username/password); ClickHouse Cloud issues per-service credentials over TLS. Changes are detected as follows — no log-based CDC for consumers; incremental reads use polling on monotonic columns, and ClickHouse is usually the destination rather than the source. Stacksync manages rate limits, retries, and schema changes automatically.

Is the ClickHouse connector two-way?

Yes. Changes made in ClickHouse propagate to the connected system and vice versa, in milliseconds. One-way flows are also supported when a direction should stay read-only.

How long does a ClickHouse integration take to set up?

Most ClickHouse integrations go live in minutes: authenticate ClickHouse and the other system, pick objects and fields, and enable the sync. No code and no infrastructure to manage.

Is ClickHouse data secure in transit?

Stacksync is SOC 2 Type II, ISO 27001, GDPR and HIPAA compliant. ClickHouse data is encrypted in transit, and a zero-persistent-storage architecture means records are not retained after a sync operation.

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
HIPAA BAA
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
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