Proxycurl Blog | Read our stories on data, scraping, APIs (Page 4)

The Top 5 Reverse Email Lookup Tools of 2025

Find the best reverse email lookup tools for each of your need in 2025. 1) Proxycurl 2) Spokeo 3) PeopleFinders 4) BeenVerified 5) Sapiengraph

linkdb

The Blueprint to Building a Successful Sales Prospecting Application

New B2B data and sales intelligence products are being created all the time. Multiple of them receive millions in funding and revenue. Would you like to cut your own tiny slice of that market out for yourself? If so, here's how...

proxycurl

The VC Playbook: Proven Methods for Identifying and Securing Promising Startups First

Venture capital funds: Want to find your next $1 billion+ unicorn? Here's a new strategy for sourcing and finding the right startup at the right time (before your competitors do)...

proxycurl

CRM Data Enrichment: The Easiest Way To Increase Your Sales Conversion Rates

Operating on an inaccurate dataset full of gaps isn't fun. It can lead to big issues for your marketing and sales teams. Let me show you how to fix your dataset with data enrichment.

proxycurl

How To Automatically Track Professional Social Network Job Changes

It's no secret that tracking job changes improves your chances of both making money from existing accounts and acquiring new accounts. But, how do you track job changes? Let me show you.

proxycurl

The Proxycurl Success Story: Hiring a Marketing Manager Through Automated Recruitment and Executive Search

Finding good candidates that are worth hiring is hard. Other solutions like Indeed, Professional Social Network, and Glassdoor rarely pay off. Here's how we just sourced our own marketing manager without them.

faq

What is the difference between the Person Search Endpoint, Role Lookup Endpoint, and the Employee Search Endpoint?

We have three similar API endpoints that seem to perform the same function—these are the Employee Search Endpoint, the Person Search Endpoint, and the Role Lookup Endpoint. However, in actuality, each one has unique nuances. * Employee Search Endpoint - Powered by LinkDB, this endpoint returns a list of employees

proxycurl

The Definitive Guide to Executive Searches: Automatically Find Qualified Candidates

HR tech is projected to hit $76.5 billion by 2031. Clearly, it's profitable; but it's also competitive. Let us show you can gain an edge and find better HR candidates faster and easier.

changelog

Similarity scoring is now available with our Reverse Email Lookup Endpoint

This week over at Proxycurl, we added a highly-requested parameter and we're giving away free credits! Read on to find out more. New similarity_score for Reverse Email Lookup Endpoint We added similarity_score to the Reverse Email Lookup Endpoint. It works the same as the similarity_score

build in public

How Cold Emailing Grew My B2B Startup To $100k MRR

Cold email has always been essential to the growth of Proxycurl. It's the main reason why we hit $100k MRR. Here's how we did it profitably...

changelog

Profile Enrichment via Facebook & Twitter Comes to Proxycurl!

Hello and welcome to our end-of-August changelog! We've added a new feature to our Person Profile Endpoint - the ability to look anyone up by new methods. There are now THREE methods of input: * Professional Social Network_profile_url * facebook_profile_url * twitter_profile_url (And don'

proxycurl

How To Bypass Professional Social Network Search Limits in 2025

Professional Social Network is full of high-quality business-centric data. The problem is, they don't like to share... let's find out if we can figure out a way to bypass Professional Social Network search limits (HINT: I think we can...)

changelog

August 2023: New Reverse Contact Number Lookup API & More!

Proxycurl's August 2023 updates are here! Featuring a new endpoint, improvements to existing endpoints, and LinkDB public pricing! Plus a brand-new product launch in case you haven't already seen it! LinkDB pricing is now public We've revealed our LinkDB pricing to the public -

proxycurl

How To Find Anyone With An Advanced Professional Social Network People Search

So, you want to search for people on Professional Social Network. In this article, I will show you step-by-step multiple ways to find a specific person or a broad list of people.

faq

What's Proxycurl's Refund Policy?

Proxycurl API In general, we will refund you if you accidentally purchase credits and spend at most 10 of them. Refunds are granted once per customer. There are three scenarios in which a refund will be provided: 1. A new order has been made (e.g. you bought too many

proxycurl

People Data Labs Customers: Get 25,000 Proxycurl Credits for FREE

Are you a customer of People Data Labs? Are you happy with your service? Are you certain you're happy with your service? Find out at no cost this month - we're offering you a month of free service on our $299/month plan, which amounts to

proxycurl

Use Proxycurl's APIs Within Google Sheets: Introducing Sapiengraph!

Have you ever wanted to integrate Proxycurl's APIs into your spreadsheet data? Or maybe you don't code - you prefer working within Google Sheets using familiar formulas rather than writing Python scripts. Introducing Sapiengraph: Proxycurl's new offering for B2B data directly inside Google Sheets!

faq

Do You Provide Professional Social Network Connections?

Professional Social Network connections are not part of the public profile data set, and [we only work with public data](https://nubela.co/blog/is-Professional Social Network-scraping-legal/). Therefore, Professional Social Network connections are not available for us to scrape and we do not scrape them. No, we do not provide

faq

Do You Offer Any Discounts for Startups or Nonprofits?

We do not offer any discounts to any classes of organizations.

faq

How Long Can a Search Regex Be?

There is not a maximum length for individual parameters of a search query; rather, your entire query must be at most 4094 characters.

faq

Why Do We Charge Credits for 404s?

In our API, a 404 is considered a successful query, despite being classified as an error code. You can check our API reference manual sections on credits and status codes for official documentation at any time, but here we will explain the why of this policy. When a request comes

proxycurl

Proxycurl Search May 2023 - Results Now 67% Cheaper & More

📢As of 1 March 2024, we've deprecated this initial version - the Search API V1, and launched the Search API V2, with some amazing updates: • No more regexes, now on Boolean search • No more 35-credit base costs, it's now just 3 credits/result - much much

faq

Why Do Employee or Student Counts from our API Endpoint Differ from Professional Social Network's Data?

1. Our Employee/Student Listing API endpoint relies on LinkDB, a database that exclusively gathers public Professional Social Network profiles. Consequently, the data we can provide is only as comprehensive as the content available in LinkDB. 2. Professional Social Network's specific heuristics for associating an individual with their

proxycurl

Access API Logs in Your Proxycurl Dashboard

We've added API logs to your Proxycurl Dashboard, giving you the power to better understand and debug your use of Proxycurl. The number of logs you gain access to is as follows: Subscription Plan Total Accessible Logs • PAYG • $49/mo plan 5 $299/mo plan 10,000 $899/

proxycurl

The VC's Guide to Uncovering Stealth Startups

How can you identify a likely founder so that you can be the earliest to invest in their success? In this article, we'll answer this question and show you several specific queries you can plug into the Proxycurl Person Search Endpoint to search for potential founders. Our intent

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