topic [Urgent/Critical] IP Address Banned from API? in APIs & Integrations

[Urgent/Critical] IP Address Banned from API?

austinkelleher — Sat, 19 Apr 2025 15:03:43 GMT

Hi, we started seeing this error last night that is actively causing downtime of our service: "The owner of this website (api.hubapi.com) has banned your IP address (x.x.x.x)." We use a specific hosting service with a shared IP address pool. I downloaded the API logs for our HubSpot app and it seems that we should be far under the daily limit. It's not clear to me whether we are at fault or something else...

Re: [Urgent/Critical] IP Address Banned from API?

DianaGomez — Mon, 21 Apr 2025 12:38:53 GMT

Hi @austinkelleher,

Thanks for reaching out to the Community!

I noticed a similar situation discussed in another thread: IP address banned by Hubspot, and it appears our support team was able to assist in resolving it. To get the most accurate and detailed guidance for your specific case, I would recommend contacting our support team directly. They'll be best equipped to provide you with the information you need.

Hope this helps!
Diana

Re: [Urgent/Critical] IP Address Banned from API?

RubenBurdin — Mon, 18 Aug 2025 16:12:19 GMT

Hi @austinkelleher

That’s definitely a tough one, and I understand the urgency. When you see an outright IP ban like that, the fastest path is indeed opening a support ticket with HubSpot since only their team can unblock the address.

From experience, this type of block often happens when you’re on shared hosting where multiple tenants hit the HubSpot API from the same IP. Even if your own app is under limits, another tenant in the pool can trigger throttling or abuse protections. HubSpot explains more about how requests and limits are enforced in their API documentation (https://developers.hubspot.com/docs/guides/apps/api-usage/usage-details)

A good long-term pattern is to introduce a middleware or sync layer that manages retries, uses backoff, and spreads requests so a sudden spike doesn’t get your IP flagged. That’s actually one of the reasons we built Stacksync to give teams a stable buffer between their systems and HubSpot.

It automatically handles retries, rate limits, and shields you from surprises like IP bans that can stall production.

Hope this perspective helps while you work with support to clear the block.