API usage guidelines
HubSpot closely monitors usage of our public APIs to ensure a quality experience for every user. All app and integration developers must comply with the HubSpot Acceptable Use Policy and API Terms. While HubSpot reserves the right to change or deprecate the APIs over time, updates will always be provided in advance through the Developer Changelog.
Authentication and security
For optimal security, all apps must use HubSpot’s OAuth protocol directly, or use your app's access token if you're building a private app. Apps are responsible for storing time-to-live (TTL) data and refreshing user access tokens in accordance with this protocol. When an access token is generated, it will include an
expires_in parameter indicating how long it can be used to make API calls before refreshing.
Unauthorized (401) requests are not a valid indicator that a new access token must be retrieved.
Private apps and apps using OAuth
Use API call monitoring in the private app or public app’s settings.
Integrations using API keys
Please note: as of November 30, 2022, HubSpot API Keys are being deprecated and are no longer supported. Continued use of HubSpot API Keys is a security risk to your account and data. During this deprecation phase, HubSpot may deactivate your key at any time.
You should instead authenticate using a private app access token or OAuth. Learn more about this change and how to migrate an API key integration to use a private app instead.
To check how many API calls have been made fur the current day and when the limit will reset, make a
GET request to
key_value is the account's HubSpot API key. The current day is measured from midnight to midnight based on the connected account’s time zone settings. Calls to this endpoint count against your daily API limits.
The data returned by this endpoint will be cached for five minutes. Check the
collectedAt fields in the response to determine if it's from cache.
resetsAt field is a Unix timestamp (in milliseconds) of the time that the limit will reset. The limit resets at midnight based on the time zone setting of the account.
Example cache response:
When the response is from cache,
fetchStatus will be
"CACHED", and the
collectedAt will be a Unix timestamp (in milliseconds) indicating when the cache was last updated.
Apps using OAuth
For OAuth apps, each HubSpot account that installs your app is limited to 100 requests every 10 seconds. This excludes the Search API, as noted in the Other Limits section below. Limits related to the API Add-on don't apply.
Each private app is subject to HubSpot's API usage guidelines. The number of calls your private app can make is based on your account subscription and whether you've purchased the API add-on:
|Product Tier||Per 10 Seconds||Per Day|
Free and Starter
|100 / private app||250,000 / account|
Pro and Enterprise
|150 / private app||500,000 / account|
|Private Apps with API Add-on||
Free, Starter, Professional, and Enterprise
|200 / private app||1,000,000 / account|
Any app or integration exceeding its rate limits will receive a
429 error response for all subsequent API calls. Requests resulting in an error response shouldn’t exceed 5% of your total daily requests. If you plan on listing your app in our App Marketplace, it must stay under this 5% limit to be certified.
the 429 response will have the following format:
policyName will indicate which limit you hit (either daily or secondly).
The daily limit resets at midnight based on your time zone setting.
Each API request will include the following rate limit headers in the response. NOTE: The
Daily-Remaining headers are not included for requests authorized using OAuth.
||The number of API requests that are allowed per day.|
||The number of API requests still allowed for the current day.|
||The window of time that the
For example, a value of 10000 would be a window of 10 seconds.
||The number of requests allowed in the window specified in
For example, if this header had a value of 100, and the
|| The number of API requests still allowed for the window specified in
X-HubSpot-RateLimit-Secondly-Remaining headers are still included and will still have accurate data, but the limit referenced by these headers is no longer enforced and these two headers should be considered deprecated.
You can also check the number of calls used during the current day using this endpoint.
If you're running into the
TEN_SECONDLY_ROLLING limit, you should throttle the requests that your app is making to stay under that limit. In addition to throttling the requests, or if you're running into the daily limit, check out the suggestions below.
If you find that you're still hitting the call limits after looking through these suggestions, please let us know on our developer forums. We want to know as many details as possible about the APIs you're using, how you're using them, and which limit you're hitting.
Cache data for repeat calls
If your site or app uses data from HubSpot on each page load, that data should be cached and loaded from that cache instead of being requested from the HubSpot APIs each time. If you're making repeated calls to get settings from your account for a batch job (such as getting your object properties, owners, or settings for a form), those settings should also be cached when possible.
Use batch APIs when possible
If you're not working with time-sensitive data, group updates into a periodic batches instead of individual ones can be more effective.
If you're working with CRM objects (contacts, companies, deals, etc), there are batch methods available.
Use webhooks to get updated data from HubSpot
If you have a HubSpot Marketing Enterprise subscription, you can use webhook actions in workflows to have data for contact records sent to your system. Webhooks can be triggered as an action in any workflow, so you can use any workflow starting conditions as the criteria to have contact data sent to your system. More details about using webhooks can be found here and example webhooks data is here. Webhook calls made via workflows do not count towards the API rate limit.
- You can create up to 100 apps per developer account.
- You can create up to 20 private apps per HubSpot account.
- You can create up to 1,000 webhook subscriptions per app.
- You can create up to 25 CRM extension settings per app.
- You can create up to 750 timeline event types per app.
- You can create up to 500 properties per timeline event type.
- The Search API endpoints are rate limited to four requests per second per authentication token.