What is Clay webhook?
A Clay webhook is an incoming endpoint that receives event data from another application and adds it to a Clay table. Clay documents JSON data sent through an HTTP POST request. It is an inbound source, distinct from an outgoing HTTP API action.
By LeadHaste Editorial · AI-assisted editorial review ·
How the handoff works
An external application sends an event payload to the webhook URL generated for the Clay source. The received fields become inputs for the table's next steps. For example, an application could provide a newly submitted company domain and an internal event identifier. Receiving that data does not verify the company, qualify the contact or authorize an outbound message. Those are separate decisions after intake.
Separate inbound and outbound actions
A Clay webhook receives information. The HTTP API integration makes requests to another service. Confusing the two can send data in the wrong direction or lead someone to expect a result from a source that only accepts events. Write down the sender, destination and expected payload before configuring either side. If a workflow has both directions, give each step a clear name and retain identifiers that let the team connect the events.
Test without creating duplicate work
Use a non-sensitive test payload and inspect the actual received fields. Verify what happens when a field is missing and when the same event is submitted twice. Our recommendation is to retain a stable event or record identifier and apply an explicit duplicate check before paid enrichment or export. Do not assume the existence of a webhook guarantees that repeated requests will be deduplicated in the way your business needs.
Protect the endpoint
Clay offers an authentication token option for webhook requests. Keep the endpoint and token out of public examples and client-side code where they could be reused unintentionally. Check the current source limits in Clay's documentation before designing a long-running intake process. Finally, confirm the table's auto-run settings: a successfully received test event can trigger downstream actions if those controls are already enabled.
Sources
Useful next steps
Related terms
Put the pieces into a system you own.
Explore your ICP and campaign fit on a free discovery call, then decide what your outbound operation needs.
Book your free ICP review →