BlitzAPI vs Postproxy

Smart ICP Targeting & People Search

Find your ideal customer profile (ICP) instantly with BlitzAPI's powerful search algorithm. Go beyond basic filters to discover decision-makers prioritized and ranked based on relevance to your target persona. This feature allows you to pinpoint the right contacts at the right companies efficiently, ensuring your outreach starts with high-intent leads and eliminating time wasted on unqualified prospects.

Verified Email & Phone Enrichment

Access a database of over 360 million verified B2B contacts. Enrich your existing leads with accurate, deliverable work emails and direct-dial phone numbers. BlitzAPI's commitment to data integrity means you get actionable contact points that actually work, dramatically improving connection rates for your sales and marketing campaigns without the noise of outdated or incorrect information.

Real-Time Catch-All Email Validation

Tackle the challenge of catch-all email domains (like @company.com) with industry-leading accuracy of over 98%. This unique feature validates whether an email address exists on a catch-all server in real-time, preventing bounces and protecting your sender reputation. Never guess if an email will deliver again, ensuring your communications reach the inbox.

Unlimited Data Enrichment via API

Scale your data operations without limits through simple, flexible API calls. Enrich not just emails and phones, but also LinkedIn profiles and comprehensive company data—all from a single platform. This API-first design gives your engineering and ops teams the building blocks to automate entire lead enrichment pipelines, fitting perfectly into your custom workflows.

Unified API for Multiple Platforms

Postproxy offers a single API endpoint that allows users to publish content across various social media platforms simultaneously. This eliminates the need for individual platform integrations and reduces the complexity of managing multiple accounts.

Automatic Content Adaptation

The API automatically transforms content to fit the specific requirements of each platform, including format conversions and media specifications. This ensures that posts are compliant and visually appealing wherever they are published.

Robust Error Handling

With built-in retries, rate limit management, and quota awareness, Postproxy handles operational failures by design. Users receive clear notifications about publish states, allowing them to understand what succeeded, what failed, and why without manual checks.

Simplified Authentication Management

Postproxy manages OAuth flows, token storage, and automatic refreshes seamlessly. This means users can focus on creating content while the system takes care of authentication complexities, making the publishing process smoother.

Automating Outbound Sales Prospecting

Sales development representatives (SDRs) and outbound teams use BlitzAPI to automate the lead list building process. By integrating the People Search and Enrichment APIs into their CRM or sales engagement platform, they can automatically generate targeted prospect lists with verified contact information, allowing reps to focus on selling rather than manual data hunting and verification.

Building Scalable Lead Enrichment Pipelines

Revenue Operations (RevOps) and Growth teams implement BlitzAPI as the core data layer in their marketing automation stacks. Every new lead captured from a website form, event, or campaign can be instantly enriched with verified company and contact details via API, ensuring clean, actionable data flows into their systems for personalized nurturing and scoring.

Enhancing Account-Based Marketing (ABM) Campaigns

Marketing teams executing ABM strategies leverage BlitzAPI for precise targeting. They can identify and enrich contacts within specific target accounts, ensuring their personalized marketing campaigns reach the actual decision-makers with accurate information, leading to higher engagement and conversion rates for high-value accounts.

Validating and Cleaning Existing CRM Data

Companies with large, aging CRM databases use BlitzAPI's validation and enrichment endpoints to perform data hygiene at scale. They can batch-process existing contacts to verify email deliverability, update job changes, and fill in missing phone numbers, revitalizing their lead database and improving the effectiveness of all downstream marketing and sales activities.

Streamlined Publishing for Marketing Teams

Marketing teams can leverage Postproxy to schedule and publish promotional content across various social platforms from a single interface, ensuring brand consistency while saving time and reducing manual effort.

Automated Content Distribution

Businesses that generate AI-driven content can use Postproxy to automatically distribute posts to their social media accounts. This setup allows them to maintain a dynamic online presence without the need for constant manual intervention.

Simplified Management for Agencies

Digital marketing agencies can utilize Postproxy to manage multiple client accounts effortlessly. The unified API allows them to publish client content across different platforms without the headaches of individual integrations or access control issues.

Enhanced Reliability for Content Creators

Content creators can rely on Postproxy to ensure that their posts go live as intended, with built-in error handling and delivery guarantees. This reliability allows them to focus on content creation rather than troubleshooting posting issues.

BlitzAPI is the essential API engine built for modern Go-to-Market (GTM) teams. It provides instant, programmatic access to a massive database of clean, verified B2B data, transforming manual prospecting into automated, scalable workflows. At its core, BlitzAPI is designed to fuel outbound sales, marketing, and revenue operations by delivering accurate contact and company information directly into your existing tech stack. Its powerful suite of APIs enables teams to search for ideal customers, enrich leads with verified emails and direct phone numbers, validate catch-all domains in real-time, and match LinkedIn profiles—all with a focus on quality and deliverability. Built on an API-first architecture, it integrates seamlessly without forcing you to change your workflow, paying only for successful, verified results. For GTM agencies, outbound sales teams, and RevOps professionals looking to build repeatable, high-performance playbooks with reliable data, BlitzAPI is the infrastructure that powers growth, reduces wasted effort on bad leads, and scales operations effortlessly.

Postproxy is a powerful API solution designed to simplify and streamline social media publishing across multiple platforms, including Instagram, Facebook, YouTube, LinkedIn, and X. It serves as a bridge for developers and automators, allowing them to publish content seamlessly without the hassle of managing individual platform integrations. By automating OAuth, rate limits, retries, content adaptation, and analytics, Postproxy consolidates the complex world of social media publishing into one reliable endpoint. This efficiency is particularly beneficial for developers leveraging tools like n8n, Zapier, and CI/CD processes, transforming social media publishing into a predictable and manageable infrastructure. With a free plan available, users can scale their publishing capabilities as their needs grow, making Postproxy an ideal choice for businesses and individuals looking to enhance their social media presence without the operational chaos.

What makes BlitzAPI different from other data providers?

BlitzAPI is built as an API-first infrastructure, not just a data portal. It prioritizes verified, deliverable data over sheer volume, ensuring you pay only for accurate results. Its unique features like high-accuracy catch-all validation and flexible, workflow-agnostic APIs are designed to integrate seamlessly into your existing playbooks without forcing you to adapt to a rigid platform.

How accurate is the email and phone data?

BlitzAPI maintains a database of over 360 million contacts with a focus on quality. The platform is built on deliverability-first practices, resulting in an email deliverability rate of over 98%. Phone numbers are verified as direct lines, not main switchboards, providing higher connect rates for sales teams.

Is there a free trial or plan to get started?

Yes, BlitzAPI offers a free tier to start building. You can get 1,000 free credits to test the APIs with no credit card required. This allows you to experience the speed, accuracy, and ease of integration firsthand before committing to a paid plan.

How easy is it to integrate BlitzAPI into our workflow?

Integration is straightforward due to its API-first design. BlitzAPI provides clean, well-documented REST APIs that can be connected to your CRM, marketing automation platform, or custom internal tools in just a few hours. It's built to fit into your process, not the other way around.

What social media platforms does Postproxy support?

Postproxy currently supports publishing to Instagram, Facebook, YouTube, LinkedIn, and X, allowing users to manage multiple accounts from a single API.

How does Postproxy handle platform-specific failures?

Postproxy is designed to manage platform-specific failures by implementing retries, rate limit handling, and clear state reporting. This ensures users are informed about the status of their posts without manual checks.

Is there a free plan available for Postproxy?

Yes, Postproxy offers a free plan that allows users to get started with the service without any upfront costs. As users grow, they can scale their usage based on their needs.

How do I get started with Postproxy?

To get started, create a Postproxy account, generate an API key, connect your social media accounts, and begin publishing content via the unified API. The setup process is simple and requires no platform-specific configurations.

BlitzAPI is a B2B data API platform designed to provide clean, verified contact and company information. It helps growth and sales teams power their outbound and GTM strategies with accurate data for prospecting and enrichment. Users often explore alternatives for various reasons. These can include budget constraints, the need for different feature sets like CRM-native tools, or specific platform requirements such as a stronger focus on intent data or international coverage beyond what one provider offers. When evaluating other options, key considerations are data accuracy and freshness, deliverability rates for emails, ease of API integration, and the overall cost relative to the volume and quality of data provided. The goal is to find a solution that balances reliability with your team's specific workflow needs.

Postproxy is a powerful tool designed for seamless social media publishing, allowing users to connect with multiple platforms such as Instagram, Facebook, YouTube, LinkedIn, and X through a single API. As a part of the design tools category, it automates various aspects of social media management, making it a popular choice for developers and content creators looking to streamline their publishing processes. Users often seek alternatives to Postproxy due to factors like pricing, specific feature sets, or the need for compatibility with particular platforms. When selecting an alternative, it's essential to consider the API's ease of integration, the breadth of social networks covered, and the availability of scalable solutions that grow with your needs. Look for options that provide robust automation, analytics, and a user-friendly experience to ensure efficient social media management.