You are building your startup and at this moment you want your brand to reach new audiences that can benefit from your service. If that is the case, then you are not alone and many companies every day are trying to find leads for their new cool tools. In this blog post we will give you some tips on how you can find those emails and introduce to you the Leads API, a developer API focused on company emails extraction for the web.

Every day several hundreds or thousands of new products are born, if you check ProductHunt, you will be amazed on how many new tools and services are being published every single day. Products without audience to use them is like a store full of goods without buyers.

As the case of your product or your company product, you have been working hard on it for several months, a typical new product becomes MVP at an average of 6 months from software development, design, finishing and launch. Building your audience as early as possible helps you reach far more people in the long run than you ever expect and reaching the audience that are effectively becoming your clients is what is important.

Define your target audience

Your target audience is a group of people or companies who can benefit from your service. As an example you are building a tool for developers that helps them organize their random code snippets. You are best to find developers in places like Github, Gitlab, Linkedin and either connect with them and tell them about your service or simply find their emails and contact them and offer them your product to try it. Nothing works better than cold-emailing companies and developers as a start, you will find it very effective and rewarding. The most important part of it which you have to be careful about, is how to make your emails speak to your audience so that they are willing to give more time to read your story and even going to your service website and giving it a try. You know your product and you should really know your audience very well as that becomes the most important part of the game when you want your product to reach more people.

Find your audience contact details

This one is probably very tricky and it might take a good time to find a way to collect trustful emails. Assuming you are doing a B2B business and your target audience are companies. How would you go about finding the right email addresses from those companies?

If you have struggled to find those email addresses, that is okay, we are all struggling daily basis to get trustful emails, validate them if they are valid or outdated and then hopefully after long filtering steps we are able to use them to contact our target audience. This process is prone to frustration, mistakes and can become ineffective in the long run, but you have to keep trying to find those leads, otherwise you are just giving up too quickly and that is not what you have to do for the product that you have been working on and wanting people to use it. It could be costing you money laying around or it could be costing you nothing but you have worked on it for a long time and you cannot wait for it to become fruitful. The tip here is “do not give up trying to find your audience” not even a single day.

At Crawlbase (formerly ProxyCrawl) we help companies and startups like yours, get a handful of emails that can help you grow. If you are a developer or not a developer that is not really a big deal, an API is becoming popular now a days, some statistics say that much more non developers are getting familiar with APIs in the last years and that is growing.

Things you could do to find leads

You can visit company websites, and filter out if they have a contact person with an email address which you can use. You can also try to leave them a chat message or even try to contact them via their contact form, many companies have contact forms and accept new questions on their contact forms, so try those, many times they can work for you. If your business is more social oriented, probably you could try to find emails in facebook, get in contact with people who are interested in what you offer, you can try to get leads over Youtube channels, Instagram, Linkedin, there are many places where you usually can find trustful leads.

You can also use the Leads API of Crawlbase (formerly ProxyCrawl)

The Leads API is a software as a service tool that helps developers and companies find trustful company emails that are ready to be used in your email campaigns. Simply send a request to the API and the API gives you back emails that we find in the company domain and the internet where they could be helpful for you at any stage of your client hunt process.

How to use the Leads API?

You can visit the Leads API landing page and check the Live Demo and see how it works for you. You can connect the leads API to your software tool or use the API as a widget in the dashboard. Here is an example of how to use it as an HTTP GET request.

curl ""

The API response would be something like the following, collect the emails that suits your needs better and give more chances to your product to reach more people easily.

"email": "[email protected]",
"name": "Target Company CEO",
"accuracy": 98,
"sources": [
"email": "[email protected]",
"name": "Target Company CTO",
"accuracy": 95,
"sources": [

As a summary, Leads generation is a painful process, it has never been easy, try to make the best out of it and use the Leads API of Crawlbase (formerly ProxyCrawl) which is designed to make your life easier with your leads finding process.