Do you need a paid Data Hub plan to connect HubSpot to your other systems?

Summary

Choose the connection before the plan

Data sync keeps records aligned between HubSpot and a supported app. A field mapping tells it, for example, which field in the other app corresponds to a HubSpot contact property. Free sync uses the supplied mappings; Starter lets you change the mapping yourself. Check that the specific app and fields you need are supported before choosing a plan. HubSpot data sync setup.

A custom integration is different: your software sends requests to the API, the interface that lets another program read or update HubSpot records. Buying Data Hub Professional is not a prerequisite. The general request allowance depends on the Hub tier in the account, including other Hubs.

The API allowance is shared

For privately distributed apps, including legacy private apps, HubSpot publishes the following general limits. Some endpoints, including CRM Search, have separate limits. Official API usage guidelines.

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The daily allowance resets at midnight in the account time zone. Exceeding a rate limit returns a 429 error. Sending 400,000 updates as one request each would exceed the Free/Starter daily allowance, even before other apps use it. Batching records and caching reads can reduce the daily request count. Spreading requests helps with the ten-second limit, but does not enlarge the daily allowance.

Marketplace OAuth apps have a different general limit: 110 requests per 10 seconds for each installing account, excluding CRM Search. The API limit increase does not raise that limit. For private apps, the add-on raises the burst limit to 250 and adds 1,000,000 daily requests per pack, with at most two packs.

Pay for processing you need inside HubSpot

Professional adds programmable automation, meaning custom code within a workflow, plus data quality automation and bulk duplicate management. Formatting data and merging duplicate records are different jobs. Webhook workflow triggers, which start a workflow when another system sends an event, are listed at 10 on Professional and 100 on Enterprise. Enterprise also adds data warehouse integrations. Data Hub pricing and feature comparison.

The current Starter card offers the Starter Customer Platform at $7 per seat per month paid annually, or $10 paid monthly, against a displayed $20 regular price. This is a limited-time new-customer offer. Three seats at the annual offer cost $7 × 3 × 12 = $252 before tax.

Core Seats are paid seats for access to the purchased Hub tier. For three Core Seats, Professional paid annually is ($720 + 2 × $45) × 12 = $9,720; Enterprise is ($2,000 + 2 × $75) × 12 = $25,800. These are subscription amounts before tax and separately purchased usage or services. Annual payment puts the annual subscription amount up front. Professional paid monthly still requires an annual commitment: ($800 + 2 × $50) × 12 = $10,800 over that year, paid at $900 a month.

For a supported app with standard mappings, try free sync first. Choose Starter for custom mappings, or Professional when you need its workflow processing. For a custom API connection, measure request demand before buying a Hub: an account that already has another Professional Hub may already have the higher allowance.

Sources

Checked 10 October 2026; US dollar examples exclude tax.

• https://www.hubspot.com/pricing/data
• https://www.hubspot.com/products/data
• https://developers.hubspot.com/docs/developer-tooling/platform/usage-guidelines
• https://legal.hubspot.com/hubspot-product-and-services-catalog
• https://knowledge.hubspot.com/integrations/connect-and-use-hubspot-data-sync

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