Via API steps and webhooks No app to install: Kerux talks to Lusha's API with HTTP steps and webhooks, set up once.

Lusha contact details when a LinkedIn lead warms up

Q: What happens if Lusha is down or refuses a call?

The lead stops with Lusha's own error message and shows in Need attention with a Retry button. It never shows as finished because a call failed, and nothing else goes out to that lead until you decide.

Credits go where they count: only leads who reply go to a follow-up campaign, where an API step asks Lusha for their phone and email and your rep gets a heads-up to call.

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How it works

Daniel answers
A warm reply on LinkedIn.
Lusha reveals his details
Phone and work email, on demand.
Your rep calls
While the conversation is warm.

An example workflow

LinkedIn invitation and two messages.
The lead replies: the When the lead replies box sends them to a follow-up campaign with Send to another campaign.
There, a Webhook / HTTP step asks Lusha's API for the person by linkedinUrl, revealing phones and emails.
A Slack message step tells the owner, with the phone number from Lusha's answer.
The rep calls and logs the result in your CRM.

What data flows

Kerux sends to Lusha

lead.linkedin_url

Lusha sends to Kerux

The phones and emails Lusha reveals for the person.

Set it up

In Lusha, copy your API key from the API section of your account. Kerux sends it in the api_key header.
In Kerux, open Integrations > Connections and click Connect on Custom API (under Developers). Pick how Lusha signs in, paste the key and Lusha's Base URL, click Save, then Test connection.
In the follow-up campaign, add a Webhook / HTTP step: POST /v3/contacts/search-and-enrich with contacts: [{"clientReferenceId": "1", "linkedinUrl": "{{lead.linkedin_url}}"}] and reveal: ["emails", "phones"].
Click Test in the Builder, then pick the phone and email from Lusha's answer for your Slack or CRM steps.
In the campaign's Builder, click Test to open Test on one lead: the lead's journey shows what Kerux sent to Lusha and what came back.

Plan limits: Lusha's API uses your plan's credits, and phones cost more than emails (Lusha's docs and pricing).

Questions

Does Kerux have a native Lusha integration?

Not a one-click app. Kerux works with Lusha today through Lusha's own API: you save your Lusha key once in Kerux, then HTTP steps and webhooks do the work inside your campaigns. Nothing to install and no Zapier needed.

Why only after a reply?

Revealed phones cost credits. Asking only for people who answered keeps the spend on leads your rep will actually call.

Can I search without revealing?

Yes. Lusha has a search endpoint that tells you what it has before you reveal it; the search-and-enrich endpoint does both in one call.

What happens if Lusha is down or refuses a call?

The lead stops with Lusha's own error message and shows in Need attention with a Retry button. It never shows as finished because a call failed, and nothing else goes out to that lead until you decide.

Use it in a campaign

Try Kerux free for 10 days. No card needed.