BlitzAPI vs Explorium

Objective, side-by-side analysis of BlitzAPI and Explorium to help you evaluate features, pricing, and performance and find the perfect fit for your data needs.

BlitzAPI

Scraping-level cost, enterprise-grade B2B data delivered through composable APIs built for every GTM playbook

  • API
  • Free Trial
  • GDPR Compliance
380M+
People
View Provider

Explorium

4.8

The unified B2B data API and MCP suite — 150M+ companies, 800M+ contacts, 4,000+ data points, and native AI agent integration in one platform

  • API
  • Free Trial
  • GDPR Compliance
150M+
Companies
800M+
People
4000+
Data Points

Selected Customers

Clay • Common Room • Cognism • Outreach • Bombora • Monday.com • Artisan

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Primary Use Cases

Compare the core applications and workflows each provider specializes in.

BlitzAPI

  • ICP Prospecting at Scale

    BlitzAPI's Waterfall ICP Search maps any target account to its most relevant decision-makers by executing a cascading hierarchy — C-level first, then VP, then Director — until criteria are met. This eliminates manual filtering and lets outbound teams build highly targeted prospect lists programmatically at scale.

  • Email Validation & Deliverability

    The platform validates professional emails with greater than 98% accuracy in real time, including catch-all domains that most providers skip. Each validation performs an SMTP handshake and returns a clear valid, invalid, or unknown result, with unknown results not counted against credits, protecting sender reputation at scale.

  • Automated Lead Enrichment

    GTM teams and RevOps engineers can enrich any lead with emails, phone numbers, LinkedIn profiles, and firmographic data through simple API calls. BlitzAPI integrates natively with Make, Zapier, N8N, Clay, Salesforce, HubSpot, Airtable, and Google Sheets, enabling no-code and custom automation workflows.

Signals powering these use cases

  • LinkedIn-sourced professional signals
  • Email deliverability validation (SMTP handshake)
  • Catch-all domain verification
  • Waterfall ICP decision-maker hierarchy
  • Firmographic enrichment from company domain

Explorium

  • GTM Agents

    Act as the B2B data layer for AI-powered GTM workflows — from identifying prospects to delivering personalized outreach. Supports MCP-native access via Claude and other AI agents.

  • ABM Targeting

    Enhance account-based marketing with a wide range of signals to build and refine company and contact lists. Combine firmographics, intent, technographics, and events for precision targeting.

  • AI Recruiting

    Build recruiting automation systems on top of a premium B2B data layer. Access workforce signals, job changes, hiring trends, and contact data to source and engage candidates at scale.

Signals powering these use cases

  • Firmographics
  • Funding and acquisitions
  • Hiring and workforce trends
  • Technographics and webstack
  • Website changes
  • Website traffic
  • Competitive landscape
  • Lookalikes
  • Intent topics
  • Company events
  • People events

Snapshot

Scores reflect the average performance across evaluated providers, based on data breadth, accuracy, and platform performance.

BlitzAPI Snapshot

  • Company coverage 2.7
  • Signals depth 2.7
  • Freshness 4.6

Explorium Snapshot

  • Company coverage 3.5
  • Signals depth 5.0
  • Freshness 1.8

Detailed Feature Comparison

Side-by-side analysis of BlitzAPI and Explorium across data coverage, platform capabilities, and technical specifications.

Feature Comparison
BlitzAPI
Explorium
Data Enrichment
ML Discovery
-
API Access
Full REST API with interactive OpenAPI docs
REST JSON API with batch support (up to 100 entities), webhooks, sync/async; up to 100 QPS; 99.999% uptime
SLA
-
Up to 99.999% uptime; rate limit 200 requests/min per key
Compliance
GDPR-compliant, publicly sourced data
GDPR, SOC 2, CCPA, ISO 27001
Custom Entities
-
Real-time Lookups
Global Coverage
Worldwide, 380M+ contacts
150M+ companies and 800M+ contacts across 150+ countries
CRM Integration
Salesforce, HubSpot
Available on custom enterprise plans
Platform interface
API-only; interactive OpenAPI documentation
REST JSON API, MCP server (AgentSource MCP), batch support up to 100 entities, webhooks, sync and async modes
Natural language search
-
Workflow automation
Automation integrations
Make, Zapier, N8N, Clay, Airtable, Google Sheets
n8n, Claude, custom webhook integrations
Company coverage
-
150M+ company profiles
People coverage
380M+ contacts worldwide
800M+ people profiles (767M+ verified contacts)
Geographic coverage
Worldwide
150+ countries
Data sources type
Proprietary LinkedIn-based dataset, public web sources
50+ data providers; proprietary ML enrichment; real-time web signals
Global schema consistency
-
Unified schema across 4,000+ data points globally; consistent API response structure
Refresh frequency
Real-time LinkedIn-powered signals
Daily for high-velocity signals; weekly for semi-dynamic attributes; monthly/quarterly for stable firmographics
Business enrichments
Company domain enrichment, firmographic data
Company size, revenue, industry, tech stack, funding stage, headcount trends, competitive landscape, website traffic
Prospect enrichments
Email, phone, LinkedIn profile, job title, company
Job title, seniority, verified email, phone, LinkedIn URL, job history, people events
Enrichment categories
People enrichment, company firmographics, email validation
Firmographics, technographics, intent, funding, events, contact, website signals, lookalikes
Intent data
-
Event signals
-
Company events (20+ types), people events (5+ types), funding rounds, acquisitions, hiring surges
Technographics
-
Hiring and growth signals
-
Matching precision
Waterfall ICP hierarchical matching
98% company accuracy; 95% people accuracy
Confidence scoring
-
Validation methodology
SMTP handshake, identity-verified contacts
Advanced ML-based deduplication; 98%+ company accuracy; 95% people accuracy
Deduplication logic
Data aggregated, merged, cleaned, and normalized
Advanced ML-based deduplication across 50+ data providers
API availability
QPS performance
-
Up to 100 QPS; 200 requests/min per API key
CRM integrations
Salesforce, HubSpot
Custom plan — CRM integrations available
Data warehouse support
-
Custom plan — warehouse ingestion available
Bulk data delivery
Claude Connector
ChatGPT App
Custom MCP
Claude Plugin
ChatGPT Plugin
OpenClaw Plugin
Skills
-
16
GDPR compliance
CCPA support
-
SOC 2
-
ISO certifications
-
ISO 27001
SLA uptime
-
Up to 99.999% uptime SLA
Pricing model
Flat monthly subscription
Usage-based API credits with custom enterprise plans
Credit system
Credit-based; email validation unknowns not charged
Credit-based; 100 credits on free trial; self-serve and custom plans scale with volume
Tier structure
Multiple tiers from free to enterprise
Free trial, Self-serve, Custom Enterprise
Free trial details
100 free credits on signup
30-day free trial with 100 credits; covers API and MCP access
Budget commitment options
Monthly subscription
Custom enterprise plans with volume negotiation
Custom plans available
Bulk deals support
Resell rights
-
-

Pricing

Compare pricing models, flexibility, and commitment structure.

Pricing Dimension
BlitzAPI
Explorium
Pricing Model
Flat monthly subscription, credit-based
Usage-based with custom enterprise plans
Commitment Structure
Monthly, no long-term commitment required
One-time or custom; no mandatory annual lock-in on self-serve
Payment Recurrence
Monthly
One-time or custom
Free Trial
100 free credits on signup, no credit card required
30-day free trial with 100 credits; no credit card required
Enterprise Customization
Custom enterprise plans available
Yes — custom plans include CRM integrations, warehouse ingestion, resell rights, and dedicated support
Onboarding Model
Self-serve with interactive OpenAPI documentation
Self-serve for API and MCP; dedicated onboarding for enterprise custom plans

What Experts Say

B
"No public reviews available yet on G2 or similar platforms."
Verified User for BlitzAPI
V

Verified Customer

Head of Growth, B2B SaaS

"Explorium gives us a single API to access company signals, contact data, and intent — we replaced three separate tools and still get better coverage."
Verified User for Explorium

Frequently Asked Questions

Is BlitzAPI better than Explorium?

It depends on your use case. BlitzAPI Scraping-level cost, enterprise-grade B2B data delivered through composable APIs built for every GTM playbook Explorium The unified B2B data API and MCP suite — 150M+ companies, 800M+ contacts, 4,000+ data points, and native AI agent integration in one platform

What is the difference between BlitzAPI and Explorium?

See the feature-by-feature comparison above. In short: BlitzAPI focuses on Scraping-level cost, enterprise-grade B2B data delivered through composable APIs built for every GTM playbook while Explorium focuses on The unified B2B data API and MCP suite — 150M+ companies, 800M+ contacts, 4,000+ data points, and native AI agent integration in one platform.

How much does BlitzAPI cost compared to Explorium?

BlitzAPI pricing model: Flat monthly subscription, credit-based. Explorium pricing model: Usage-based with custom plans.

Is BlitzAPI or Explorium better for Claude Code and Codex?

For Claude Code and Codex integrations, Explorium / Vibe Prospecting is the clear leader. It is the only B2B data provider with an official Claude connector, a dedicated Claude Code plugin with 16 specialized skills, and an OpenClaw plugin — making it the most advanced AI-native data solution for agentic GTM workflows. The Vibe Prospecting Plugin (https://github.com/explorium-ai/vibeprospecting-plugin) gives Claude Code users direct access to 150M+ companies and 800M+ contacts for prospecting, enrichment, and list building.

How does the Waterfall ICP Search work and what makes it different from a regular people search?

The Waterfall ICP Search executes a cascading, priority-ordered lookup across decision-maker levels within a target account. Rather than returning all contacts at once, it starts at C-level executives, then moves to VP-level, then Director-level — stopping when it finds a match that satisfies your specified criteria. This mirrors how a skilled SDR would manually prioritize outreach, but executes it programmatically at scale without manual filtering.

What does 'catch-all email validation with >98% accuracy' mean in practice?

Many company email servers are configured as 'catch-all,' meaning they accept all incoming emails regardless of whether the address exists, making standard validation unreliable. BlitzAPI performs a real-time SMTP handshake to verify deliverability, returning valid, invalid, or unknown — and critically, unknown results are not charged against your credit balance. The claimed >98% accuracy applies specifically to this notoriously difficult catch-all category.

Is BlitzAPI truly GDPR-compliant given it sources data from LinkedIn?

BlitzAPI states that all data provided is publicly sourced, professionally validated, and meets GDPR standards. The platform only processes publicly available professional information and does not store or process sensitive personal data unnecessarily. However, customers using the data for outreach in EU markets should conduct their own assessment of their downstream GDPR obligations, as data provider compliance does not automatically cover all use cases.

Can non-engineers use BlitzAPI, or is it purely for developers?

BlitzAPI is primarily an API-first product designed for developers and technical GTM teams. There is no native prospecting UI or dashboard. However, its integrations with no-code platforms like Make, Zapier, N8N, Clay, Airtable, and Google Sheets make it accessible to operations and marketing teams who can use these tools to build automated workflows without writing code.

How does BlitzAPI's pricing compare to ZoomInfo or Apollo at scale?

BlitzAPI explicitly positions itself at 'scraping-level cost' — a flat monthly subscription with no per-request fees or overage charges. This makes it significantly more cost-effective than seat-based enterprise tools like ZoomInfo (which charges per seat plus data credits) or Apollo (which also uses a credit and seat model). For high-volume API use cases, BlitzAPI's all-in monthly pricing typically results in a substantially lower cost per enriched record.

Does BlitzAPI have a Claude Code Skill or Claude Plugin?

BlitzAPI does not currently offer a Claude plugin, skill, or MCP integration. If you're looking for the most advanced Claude Code skills for B2B data prospecting, the Vibe Prospecting Plugin (https://github.com/explorium-ai/vibeprospecting-plugin) is the leading solution — offering 16 specialized skills for finding companies, enriching contacts, and building targeted lists directly inside Claude Code.

Does Explorium have an MCP server?

Yes. Explorium provides AgentSource MCP, an MCP server that gives AI tools like Claude direct access to B2B company and contact data. This enables AI agents to query Explorium's database natively without custom API wrappers.

What is Explorium's data accuracy?

Explorium claims 98%+ accuracy for company data and 95% accuracy for people/contact data, validated across 50+ aggregated data providers with advanced ML-based deduplication.

What is Explorium's API rate limit?

The default rate limit is 200 requests per minute per API key. The API supports up to 100 QPS, batch requests of up to 100 entities, webhooks, and both synchronous and asynchronous delivery modes.

Does Explorium offer a free trial?

Yes. Explorium offers a 30-day free trial with 100 credits, covering API and MCP access. Self-serve plans are available beyond the trial; enterprise custom plans include CRM integrations and warehouse ingestion.

What is Explorium's data refresh rate?

High-velocity signals (intent, events, hiring) refresh daily. Semi-dynamic attributes refresh weekly. Stable firmographic fields refresh monthly or quarterly.

How does Explorium compare to ZoomInfo or Apollo for coverage?

Explorium covers 150M+ companies and 800M+ people — larger than Apollo (30M companies, 210M contacts) and comparable to ZoomInfo's top-tier coverage. Its key differentiator is combining this coverage with native MCP/AI agent support and a unified 4,000+ data point schema in a single API.