Build B2B prospecting lists inside Claude

The video walkthrough goes up on my YouTube channel shortly. The written version below is the same thing, click for click.

What this actually does

Buying a prospecting file used to mean paying one or two euros a line for data that was three quarters out of date. The alternative was worse: a subscription to find the profiles, an export, then a second subscription to find the email, then a third for the phone number.

Airscale collapses that into one credit balance. It aggregates the sources on one side, and more than thirty enrichment providers on the other, queried one after another until one of them returns a verified result. What the skill below adds is that you never open its interface. You describe who you are looking for, in a sentence, inside Claude.

Things that work, and that no single filter gives you:

• Every lawyer who has practised criminal law for more than ten years.
• Founders who have started at least three companies.
• Sales directors in Paris who spent time at a CAC 40 group.

Your limit stops being the tool and becomes your own idea of who is worth talking to.

Step 1. Create your Airscale account

You need one, because the connector talks to your account and spends your credits. This link gives new accounts 1,000 free credits, which is roughly 10,000 people searches and 500 verified emails. It has to be a new account, and it has to be that link.

That is an affiliate link, and I say so on my disclosure page. It costs you nothing more and it is the same product either way.

Step 2. Install the skill in Claude

Fill the form at the top of this page and I email you the download link. Do not unzip the file, Claude wants the archive as it is.

In Claude, go to Settings > Skills, click Add and pick the file. It shows up in your skills, and typing /airscale in a conversation calls it. The desktop app is the better place for this, the file picker is right there.

The skill is not decoration. It carries the qualification questions that make a targeting brief usable, and it carries the guardrails: it always asks before it spends credits on phone numbers, which is the expensive part.

Step 3. Add the connector

In a conversation, click + > Connectors > Add custom connector. Name it Airscale and paste this URL, which is the same for everyone:

https://mcp.airscale.io/mcp

Then go to Settings > Connectors, find Airscale and click Connect. You get sent to a web page that asks you to authorise your workspace. You have to be signed in to Airscale in that browser, otherwise the page does nothing and there is no error message to tell you why. That is the step where almost everyone gets stuck.

Click Authorize, you come back to Claude, and you can click Always allow so it stops asking. To check it took, ask Claude do you have access to my Airscale connector? It should answer with your credit balance.

Step 4. Ask for anything

Any targeting, in France or in any country. The one habit worth building: ask for a count first, look at it, and only then enrich. A search costs nothing. What costs is what it finds.

That is also how the billing works, and it is unusual enough to say plainly: you pay for the people found, the emails found, the numbers found. Never for the search itself. So an over-broad question is not expensive, it is just useless.

Where I would start

The tool is the easy half. The hard half is deciding who is worth finding, and that is what I do all day. If you would rather not build the files yourself, my agency builds prospecting lists on criteria that are not in any filter: the people looking at your competitors, the people who already know your customers.

Fifteen minutes about your market and your offer, then thirty minutes where I hand you the targeting strategy. You run it in-house or you hand it to my team. It costs nothing either way.

Book the fifteen minutes Get the skill first