
Top 5 Email Finder APIs for 2025
Discover the best APIs to find b2b emails and mobile phone numbers.
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1. QuickEnrich.io
QuickEnrich.io is a B2B email and mobile phone enrichment API and dataset. They emphasize comprehensive data coverage, including mobile phone numbers, to enhance outreach efforts. It offers an Email Finder tool and API designed to provide broad contact information compared to competitors like Hunter.io, which may have limited B2B coverage. Users can import data from spreadsheetsor their own CSVs allowing seamless integration into existing workflows like Clay and n8n. The web app is designed for ease of use, offering a guided import tool that supports CSV files and structured data from most CRM tools. This feature simplifies the process of enriching existing contact lists without a complex setup. QuickEnrich.io differentiates itself by including mobile phone numbers in its enrichment process, aiming to provide more comprehensive contact information for outreach campaigns. This feature is particularly beneficial for sales teams seeking to expand their reach for cold calling and direct dials.
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2. Hunter.io
Hunter.io is a widely used tool designed to help businesses find and verify emails. It offers features like domain search, email verification, and cold email campaign management. They have an email finder API as well. Users tend to appreciate its ease of use and the ability to find accurate contact information. Many users highlight Hunter.io's high email verification accuracy, with some reports indicating a 92% success rate. The tool also provides a free plan, Chrome extension, and integrations with tools like Google Sheets, making it accessible for both small businesses and larger enterprises.
However, some users have noted limitations, such as a lack of multi channel outreach capabilities and the absence of social media scraping features. Despite these drawbacks, Hunter.io remains a popular choice for those seeking a reliable and user-friendly email finding and verification tool. Its comprehensive features and strong support make it a valuable asset for businesses looking to enhance their outreach efforts. -
3. Snov.io
S Snov.io is an outeach automation and CRM platform designed to automate lead generation, email verification, and cold email campaigns. It offers tools like an email finder api, LinkedIn automation, AI-powered email writing assistant, and multichannel outreach capabilities. Users appreciate its user-friendly interface, intuitive features, and seamless integration with other tools.
Some users have raised concerns about certain aspects of the platform. Issues such as limited email search database, slow email enrichment process, and inaccuracies in email verification have been noted. Additionally, some users have reported challenges with the onboarding process and the complexity of advanced features.
Despite these drawbacks, Snov.io remains a competitive alternative to other tools like Apollo.io and Hunter.io, especially for users seeking a cost-effective solution.
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4. Clearbit
Clearbit is a B2B data provider specializing in a lead enrichment api, firmographic insights, and identity resolution. It recently was acquired by Hubspot. It offers tools like Reveal for website visitor identification, Enrichment for contact and company data, and Risk for fraud detection. Clearbit integrates seamlessly with major CRMs and sales platforms, including HubSpot, Salesforce, Outreach, and Zapier.
Users often praise Clearbit for its data coverage of multiple data outputs, especially in identifying decision-makers and understanding company website visitors. Many appreciate its enrichment capabilities, which help in segmenting and targeting prospects more effectively. The integration with CRM systems is also highlighted as a significant advantage, streamlining workflows and enhancing data accessibility.
However, some users have expressed concerns about the accuracy and freshness of the data. Reports indicate instances of outdated or duplicate information, which can affect the reliability of lead enrichment processes. Additionally, the credit-based pricing model has been noted as unintuitive, leading to challenges in understanding usage limits and costs.
On Reddit, discussions about Clearbit highlight its utility in identifying anonymous website visitors and enriching lead data. However, some users have pointed out that while Clearbit excels in data enrichment, it lacks outreach functionalities, needing integration with other tools for complete sales workflows.
In summary, Clearbit is a powerful tool for B2B data enrichment and lead identification, offering insights for sales and marketing teams. .
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6. VoilaNorbert
Voila Norbert is an email finding api designed for sales and marketing professionals. It enables users to discover email addresses by inputting a person's name and company domain. The platform offers features such as email verification, automated cold email sequences, AI-generated copywriting, and CRM integrations with tools like Salesforce, HubSpot, and Zapier.
Additionally, Voila Norbert provides a Chrome extension that facilitates email discovery directly from LinkedIn and company websites. Users frequently compliment Voila Norbert for its intuitive interface and ease of use. Many have reported high satisfaction with its email finding capabilities, noting that it often delivers accurate contact information swiftly. However, some users have pointed out areas for improvement. Instances of inaccurate email predictions have been noted, particularly when the tool suggests email addresses that do not exist within a given domain.
In the Reddit community, Voila Norbert is recognized as a reliable tool for email discovery, especially for small to medium-sized businesses. However, some users suggest that its effectiveness may vary when targeting larger corporations, indicating potential limitations in its database coverage.
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