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

Prospeo finds the email behind a LinkedIn profile

When someone accepts your invitation, an API step sends their LinkedIn URL to Prospeo. The verified email comes back and your email steps, CRM or sequencer can use it.

Start free trial Read the setup guide

How it works

Daniel accepts
He's now a connection with no email on file.
Prospeo finds his email
One API call with his LinkedIn URL.
Email joins the sequence
A second channel, only for people you know are real.

An example workflow

Send the LinkedIn invitation with a short note.
Invitation accepted: a Webhook / HTTP step sends {{lead.linkedin_url}} to Prospeo's enrich endpoint, asking only for verified emails.
A Condition checks the email in Prospeo's answer: found goes on, empty stays LinkedIn only.
An Update lead step saves the email on the lead.
Day 3: a LinkedIn message; day 6: an email to the address Prospeo found.

What data flows

Kerux sends to Prospeo

lead.linkedin_url

Prospeo sends to Kerux

person.email
person.mobile

The verified email and, if you ask, the mobile number.

Set it up

In Prospeo, copy your API key from the dashboard's API section. Kerux sends it in the X-KEY header.
In Kerux, open Integrations > Connections and click Connect on Custom API (under Developers). Pick how Prospeo signs in, paste the key and Prospeo's Base URL, click Save, then Test connection.
Add a Webhook / HTTP step after Invitation accepted: POST /enrich-person with {"data": {"linkedin_url": "{{lead.linkedin_url}}"}} and only_verified_email: true.
Use the email from Prospeo's answer in a Condition and an Update lead step, then in your email or sequencer steps.
In the campaign's Builder, click Test to open Test on one lead: the lead's journey shows what Kerux sent to Prospeo and what came back.

Plan limits: Prospeo charges credits per email or mobile found; the API uses the same credits as the app (Prospeo's pricing and docs).

Questions

Does Kerux have a native Prospeo integration?

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

Can Prospeo also find mobile numbers?

Yes, its enrich endpoint can return a mobile number when you ask for it, at a higher credit cost than an email (Prospeo's docs). Ask only where you will call or text.

What if Prospeo finds nothing?

The step still succeeds with an empty email. Branch on it with a Condition: Kerux never sends an email to an empty address.

What happens if Prospeo is down or refuses a call?

The lead stops with Prospeo'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.