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
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Objective, side-by-side analysis of Explorium, BlitzAPI, and FullEnrich to help you evaluate features, pricing, and performance and find the perfect fit for your data needs.
The unified B2B data API and MCP suite — 150M+ companies, 800M+ contacts, 4,000+ data points, and native AI agent integration in one platform
Scraping-level cost, enterprise-grade B2B data delivered through composable APIs built for every GTM playbook
The highest-coverage B2B contact enrichment tool powered by multi-provider waterfall logic
Compare the core applications and workflows each provider specializes in.
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.
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.
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.
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.
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.
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.
Automatically cascade through 15+ data providers to find verified emails and phone numbers for prospects, achieving 65–85% match rates versus 25–40% from single-source tools.
Upload CSV files or LinkedIn profile lists and receive enriched, downloadable files with verified contact data, firmographics, and intent signals at scale.
Sync enriched data directly into Salesforce and HubSpot via two-way CRM integration, or automate enrichment workflows using the API and 1,000+ app connections via Zapier.
Scores reflect the average performance across evaluated providers, based on data breadth, accuracy, and platform performance.
Side-by-side analysis of Explorium, BlitzAPI, and FullEnrich across data coverage, platform capabilities, and technical specifications.
Compare pricing models, flexibility, and commitment structure.
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."
"No public reviews available yet on G2 or similar platforms."
Sales Manager, B2B SaaS
"FullEnrich is simple to use — you feed it a list of LinkedIn profiles and it finds emails and phones at a 60–70% rate, consistently below 2% bounce. Far better coverage than any single provider we tried."
It depends on your use case. BlitzAPI Scraping-level cost, enterprise-grade B2B data delivered through composable APIs built for every GTM playbook FullEnrich The highest-coverage B2B contact enrichment tool powered by multi-provider waterfall logic
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 FullEnrich focuses on The highest-coverage B2B contact enrichment tool powered by multi-provider waterfall logic.
BlitzAPI pricing model: Flat monthly subscription, credit-based. FullEnrich pricing model: Credit-based subscription.
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.
It depends on your use case. 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 BlitzAPI Scraping-level cost, enterprise-grade B2B data delivered through composable APIs built for every GTM playbook
See the feature-by-feature comparison above. In short: 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 while BlitzAPI focuses on Scraping-level cost, enterprise-grade B2B data delivered through composable APIs built for every GTM playbook.
Explorium pricing model: Usage-based with custom plans. BlitzAPI pricing model: Flat monthly subscription, credit-based.
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.
It depends on your use case. 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 FullEnrich The highest-coverage B2B contact enrichment tool powered by multi-provider waterfall logic
See the feature-by-feature comparison above. In short: 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 while FullEnrich focuses on The highest-coverage B2B contact enrichment tool powered by multi-provider waterfall logic.
Explorium pricing model: Usage-based with custom plans. FullEnrich pricing model: Credit-based subscription.
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.
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.
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.
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.
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.
High-velocity signals (intent, events, hiring) refresh daily. Semi-dynamic attributes refresh weekly. Stable firmographic fields refresh monthly or quarterly.
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.
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.
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.
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.
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.
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.
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.
Yes. FullEnrich shows which provider in the waterfall cascade returned the successful match for each contact. This transparency lets teams evaluate provider quality over time and understand which sources are delivering the highest hit rates for their specific prospect segments.
Yes — FullEnrich credits roll over for up to 3 months, which is a meaningful differentiator from tools like Snov.io or Apollo where credits expire at the end of the billing period. This makes FullEnrich more forgiving for teams with variable monthly enrichment volumes.
Yes. Phone number lookups cost more credits than email lookups — 1 phone number found costs approximately 10 credits, while email enrichment costs less per match. Credits are unified (not split into separate email and phone pools), so you can allocate the same credit balance across either type of enrichment based on your campaign needs.
FullEnrich consistently delivers 65–85% match rates versus the 25–40% typical of single-source providers like Apollo or Lusha. The waterfall approach — cascading through 20+ providers before returning no result — captures matches that any single provider would miss. Users also report bounce rates below 2% versus 15–30% with tools that rely on a single data source.
FullEnrich is an enrichment-only tool — it has no built-in prospecting database. You must supply an existing list (LinkedIn URLs, company domains, or contact names) to enrich. Teams typically pair FullEnrich with a list-building tool (LinkedIn Sales Navigator, Apollo's search, or a CSV export) then run the list through FullEnrich's waterfall to append verified emails and phone numbers.
Both use multi-provider waterfall logic, but they serve different buyer profiles. FullEnrich is a standalone enrichment tool focused purely on maximizing email and phone match rates — it is simpler, cheaper, and requires no technical setup. Clay is a broader GTM workflow platform where waterfall enrichment is one of many features alongside AI research, signal tracking, and CRM automation. Clay typically costs 3–10x more than FullEnrich for equivalent enrichment volume. Teams that just need high-coverage contact data will usually find FullEnrich more cost-effective; teams building complex enrichment and outreach automation benefit from Clay's additional capabilities.
Not officially — FullEnrich has a custom MCP server that can be used with Claude, but no dedicated Claude Code plugin or skill. 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.