Is the Clay HubSpot integration real time?

No. Imports refresh on auto-update, which defaults to every 24 hours, and write-backs fire per row as the table runs. You can shorten the interval or run an update manually, but there is no continuous sync watching for changes. If a downstream decision depends on enriched data being present quickly, drive the table from a HubSpot event rather than relying on the schedule.

Which Clay plan do I need for the HubSpot integration?

Clay's pricing page gates CRM sync and enrichment to the Growth plan and above. Note that Clay's integration documentation and its HubSpot marketplace listing both refer to a Pro plan, which is not a plan Clay currently sells. Check the pricing page or the account rather than the docs.

Does Clay support HubSpot custom objects?

Yes, Clay's integration covers custom objects. The constraint is on the HubSpot side: custom objects require a HubSpot Enterprise subscription. So the answer depends on the client's HubSpot plan rather than on Clay.

What does a Clay to HubSpot sync cost in credits?

Clay charges one Action per record for CRM exports and syncs, and that is separate from whatever the enrichment itself costs. Exporting to CSV consumes nothing. Worth modelling before a large backfill, because a one-off sync of a big table is charged per record like any other action.

How do you connect Clay to HubSpot?

Q: Why is Clay creating duplicate HubSpot records?

Almost always because updates are keyed on email rather than on the HubSpot record ID. Clay's own guidance is to key on the record ID so the write lands on the exact existing object. Email is not a dependable key, and once a run has created duplicates they have to be merged in HubSpot rather than undone in Clay.

Clay ships a first-party HubSpot integration that imports records into a table and writes back with Create, Update and Lookup actions across contacts, companies, leads, deals and custom objects. It is not a real-time sync. Imports refresh every 24 hours by default, and writes fire per row as the table runs.

What already exists

Is there a native Clay to HubSpot integration?

This is a genuine first-party integration and it is capable. Clay imports HubSpot records into a table, then writes back using Create object, Update object and Lookup object actions, plus association creation. Contacts, companies, leads, deals and custom objects are all in scope. The thing to internalise is the cadence: this is a scheduled enrichment loop, not a live sync, and designing around that is most of what makes it work.

Imports refresh on auto-update, every 24 hours by default. You can shorten the interval or trigger a manual update, but the model is polling rather than push.
Write-backs fire per row as the table runs. There is no continuous sync daemon watching for changes.
HubSpot custom objects require an Enterprise subscription on the HubSpot side. Clay supports them, but your HubSpot plan may not.
Clay's own documentation says the integration requires a 'Pro' plan. There is no Pro plan. Clay currently sells Free, Launch, Growth and Enterprise, and CRM sync is gated to Growth. The documentation is stale.
Read-only and calculated HubSpot properties are opt-in on import rather than included by default.

The detail

What actually moves between Clay and HubSpot?

Contacts, companies, leads, deals and custom objects, in both directions

No fixed field map. Clay writes whatever columns you map, including custom properties.

Editable HubSpot properties are included by default on import

Read-only and calculated properties, such as hs_analytics_first_timestamp, are opt-in

Empty properties can be excluded from import to keep tables readable

Association creation between objects is supported as its own action

In practice

Where Clay to HubSpot syncs go wrong

Keying updates on email creates duplicates

This is the single most common failure, and Clay's own guidance addresses it directly: key updates on the HubSpot record ID so the write lands on the exact existing object rather than spawning a copy. Email is not a reliable key, because HubSpot may hold several records with overlapping email data and Clay has no way to disambiguate them. Teams usually discover this after a run has created several hundred duplicates.

Clay guide: how to sync HubSpot data, record ID keying and blank values

A failed enrichment can overwrite good data with blanks

Update actions overwrite by default. If an enrichment provider returns nothing for a row, the write can land an empty value over a populated HubSpot property. Clay ships an 'Ignore blank values' toggle specifically for this, and it is off unless you set it. The damage is quiet: nothing errors, the run reports success, and a field that used to hold a phone number is now empty.

Clay guide: how to sync HubSpot data, record ID keying and blank values

The 24 hour default is slower than most teams assume

Clay is often described as though it enriches on arrival. In practice a new HubSpot contact can wait up to a day before it appears in a Clay table on default settings. If a routing or scoring decision depends on enriched data being present, that gap decides whether the process works. This is a configuration matter rather than a defect, but it needs to be a deliberate choice.

Clay docs: HubSpot integration overview

The marketplace app cannot be given more throughput

Clay connects as a publicly distributed OAuth app, and HubSpot caps those at 110 requests per 10 seconds per installing account regardless of your subscription tier. HubSpot's API limit increase add-on raises private app limits but explicitly does not raise this one. At high row counts that ceiling, not your Clay plan, is what governs throughput.

HubSpot: API usage guidelines and marketplace app rate limits

The published plan requirement does not match the plans on sale

Clay's integration documentation names a Pro plan, and the HubSpot marketplace listing says Pro or above. Clay's live pricing page sells Free, Launch, Growth and Enterprise, and gates CRM sync to Growth. Scoping a project against the documentation rather than the pricing page will produce a wrong number, so check the pricing page or the account itself.

Clay pricing: current plans and the Growth CRM gate

When not to hire anyone

Do you actually need a custom build?

The native integration is enough, and you should not pay anyone to replace it, when you are enriching an existing HubSpot list on a daily cadence, you hold the record IDs so updates key cleanly, you are writing to standard or custom properties rather than orchestrating across objects, and a day of latency is acceptable. That covers a large share of what teams actually want from Clay. It stops being enough when you need sub-hourly latency, when writes must be triggered by an event rather than a table run, when association logic goes beyond simple pairs, or when your deduplication needs to merge records rather than simply decline to create them.

How we build it

What a Clay to HubSpot build involves

The first thing we do is fix the key. Most of the duplicate problems we are called in for come down to updates keyed on email rather than record ID, so we establish a stable identifier strategy before touching anything else, and we backfill IDs into the Clay table so writes land where they should.

Then we move the trigger. Rather than leaving the table on a 24 hour refresh, we drive it from HubSpot events through n8n, so a new or changed record enters the enrichment path when it changes rather than when the timer fires. Clay stays the enrichment layer; the scheduling moves somewhere that can react.

We treat blank handling as a data integrity requirement rather than a toggle. Writes are conditional on the enrichment actually returning a value, unresolved rows go to a review queue instead of being written, and we keep a record of what was overwritten so a bad run is recoverable.

Finally we watch the throughput ceiling. At volume the binding constraint is HubSpot's 110 requests per 10 seconds for marketplace apps, so batching and pacing get designed in rather than discovered when a run starts failing. The first version will not have every field mapped perfectly. What matters is that a wrong value surfaces on a dashboard rather than in a sales call.

A Clay and HubSpot enrichment pipeline is usually a two to four week build, with most of the time going into keying, deduplication rules and the review path rather than the connection. See how we scope and price this work.

Sources

Related integrations

Clay to Salesforce ZeroBounce to Clay Apollo to HubSpot PredictLeads to HubSpot

If you are weighing whether to build this in house or have it built, read what a build like this costs, or see worked examples from real engagements. The vocabulary behind all of this is in the B2B GTM and automation glossary.

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