Explorium vs Crustdata vs Seamless.AI

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

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

Crustdata

The first B2B data search engine built for AI agents — real-time people and company intelligence via clean, fast APIs

  • API
  • Free Trial

Seamless.AI

4.4

The real-time search engine for B2B sales leads — find anyone's email or phone number instantly

  • API
  • GDPR Compliance

Primary Use Cases

Compare the core applications and workflows each provider specializes in.

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

Crustdata

  • AI Agent Data Infrastructure

    Power AI SDRs, sales copilots, and recruiting agents with structured real-time data — company signals, people profiles, and web intelligence delivered via clean APIs that AI systems can directly query and act on.

  • Growth Signal Monitoring

    Track company growth signals — headcount trends by department, funding rounds, executive moves, and web traffic changes — to identify the right moment to engage accounts based on real behavioral data.

  • Company & People Discovery

    Screen and filter millions of companies using 250+ firmographic criteria, then retrieve detailed people profiles with 90+ datapoints — built for deal sourcing, market mapping, and targeted prospecting at scale.

Signals powering these use cases

  • Headcount growth by department
  • Funding announcements
  • Executive moves
  • Web traffic trends
  • Job opening velocity
  • Product launch news

Seamless.AI

  • Real-Time Contact Discovery

    Instantly find verified emails and direct-dial phone numbers for any prospect via LinkedIn, company websites, or bulk search — with no lag from stale databases.

  • AI-Powered Pitch Intelligence

    Generate AI-crafted talking points, pain points, and personalized outreach messages for each prospect based on their role, company, and industry.

  • CRM Enrichment & Automation

    Automatically enrich and update CRM records in Salesforce, HubSpot, and Pipedrive with fresh contact data, reducing manual entry and keeping pipelines accurate.

Signals powering these use cases

  • Job change alerts
  • Real-time LinkedIn data extraction
  • AI pitch intelligence
  • Company funding signals

Snapshot

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

Explorium Snapshot

  • Company coverage 3.5
  • Signals depth 5.0
  • Freshness 1.8

Crustdata Snapshot

  • Company coverage 3.7
  • Signals depth 3.2
  • Freshness 2.6

Seamless.AI Snapshot

  • Company coverage 4.1
  • Signals depth 1.0
  • Freshness 2.2

Detailed Feature Comparison

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

Feature Comparison
Explorium
Crustdata
Seamless.AI
Data Enrichment
ML Discovery
API Access
REST JSON API with batch support (up to 100 entities), webhooks, sync/async; up to 100 QPS; 99.999% uptime
Core product — REST API and webhooks with comprehensive documentation
Available on Pro and Enterprise plans
SLA
Up to 99.999% uptime; rate limit 200 requests/min per key
-
-
Compliance
GDPR, SOC 2, CCPA, ISO 27001
-
GDPR and CCPA compliant
Custom Entities
-
Real-time Lookups
Global Coverage
150M+ companies and 800M+ contacts across 150+ countries
Global — aggregated from international public sources
Global with North America strength
CRM Integration
Available on custom enterprise plans
Via API integration; no native one-click CRM connectors
Salesforce, HubSpot, Zoho, Pipedrive, Dynamics 365
Platform interface
REST JSON API, MCP server (AgentSource MCP), batch support up to 100 entities, webhooks, sync and async modes
API-first; no traditional UI prospecting interface
Web app, Chrome extension, CRM integrations
Natural language search
Workflow automation
Automation integrations
n8n, Claude, custom webhook integrations
Webhooks for event-driven automation; Composio toolkit integration
Zapier, Outreach, SalesLoft
Company coverage
150M+ company profiles
60M+ global companies
150M+ company profiles
People coverage
800M+ people profiles (767M+ verified contacts)
1B+ people profiles
1.7B+ contact profiles
Geographic coverage
150+ countries
Global coverage aggregated from international sources
Global, with strongest coverage in North America
Data sources type
50+ data providers; proprietary ML enrichment; real-time web signals
LinkedIn, SEC filings, funding announcements, Glassdoor, G2 reviews, web traffic analytics, news aggregators, government filings
Real-time AI-powered web crawling, LinkedIn data, public web sources
Global schema consistency
Unified schema across 4,000+ data points globally; consistent API response structure
Consistent API schema; data refreshed monthly with real-time signals via webhooks
Consistent schema across geographies
Refresh frequency
Daily for high-velocity signals; weekly for semi-dynamic attributes; monthly/quarterly for stable firmographics
Monthly refresh for core data; real-time signals via webhooks and Web Search API
Real-time at point of search
Business enrichments
Company size, revenue, industry, tech stack, funding stage, headcount trends, competitive landscape, website traffic
250+ firmographic datapoints including headcount growth, funding history, technology stack, web traffic trends, Glassdoor ratings
Company size, industry, revenue, technology stack, location
Prospect enrichments
Job title, seniority, verified email, phone, LinkedIn URL, job history, people events
90+ datapoints per person including work history, skills, education, contact signals
Email, phone, title, LinkedIn URL, department
Enrichment categories
Firmographics, technographics, intent, funding, events, contact, website signals, lookalikes
Headcount by department, funding rounds, investors, tech stack, web traffic, employee reviews, job openings, executive moves, product news
Email, direct dial, mobile phone, job title, company firmographics, intent signals
Intent data
Event signals
Company events (20+ types), people events (5+ types), funding rounds, acquisitions, hiring surges
Funding announcements, headcount changes, executive moves, product launches, news articles
Job changes, company funding announcements
Technographics
Hiring and growth signals
Matching precision
98% company accuracy; 95% people accuracy
Domain-based and name-based entity matching for companies; profile-based matching for people
LinkedIn-based identity matching via Chrome extension
Confidence scoring
-
Validation methodology
Advanced ML-based deduplication; 98%+ company accuracy; 95% people accuracy
Aggregated from authoritative public sources; AI-assisted extraction and normalization
AI-driven real-time verification; marketing claims 98% accuracy but user-reported bounce rates average 15-25%
Deduplication logic
Advanced ML-based deduplication across 50+ data providers
Entity resolution across multiple source feeds
Basic deduplication within platform; CRM-level deduplication depends on integration
API availability
QPS performance
Up to 100 QPS; 200 requests/min per API key
High-throughput API with no rate limits mentioned for enterprise tiers
-
CRM integrations
Custom plan — CRM integrations available
Via API — integrates into any CRM or ATS with developer support
Salesforce, HubSpot, Zoho, Pipedrive, Microsoft Dynamics
Data warehouse support
Custom plan — warehouse ingestion available
Bulk CSV data feed available; REST API and webhooks for real-time delivery
Export to CSV; Zapier for custom integrations
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
Usage-based API credits with custom enterprise plans
Credit-based API consumption
Credit-based subscription
Credit system
Credit-based; 100 credits on free trial; self-serve and custom plans scale with volume
Credits consumed per API call; volume tiers with discounts at scale
1 credit = 1 contact reveal; credits do not roll over on most plans
Tier structure
Free trial, Self-serve, Custom Enterprise
Free, Starter, Growth, Enterprise
Free, Basic, Pro, Enterprise
Free trial details
30-day free trial with 100 credits; covers API and MCP access
Free plan with limited API calls; no time restriction mentioned
Free tier with 50 lifetime credits; no time-limited free trial
Budget commitment options
Custom enterprise plans with volume negotiation
Monthly or annual; bulk data delivery available for enterprises
Annual contracts standard; monthly available for Basic
Custom plans available
Bulk deals support
Resell rights
-
-
-

Pricing

Compare pricing models, flexibility, and commitment structure.

Pricing Dimension
Explorium
Crustdata
Seamless.AI
Pricing Model
Usage-based with custom enterprise plans
Credit-based API consumption
Credit-based; one credit = one contact reveal (email + phone)
Commitment Structure
One-time or custom; no mandatory annual lock-in on self-serve
Monthly or annual; enterprise plans negotiated directly
Annual contracts required for Pro and Enterprise; Basic available monthly
Payment Recurrence
One-time or custom
Monthly or annual
Annual (discounted) or monthly
Free Trial
30-day free trial with 100 credits; no credit card required
Free plan available with limited API calls — no credit card required
Free plan with 50 lifetime credits — not a time-limited trial
Enterprise Customization
Yes — custom plans include CRM integrations, warehouse ingestion, resell rights, and dedicated support
Custom credit volume, SLA, webhook delivery, and bulk data feed options for enterprise
Fully custom pricing with dedicated CSM, advanced integrations, and volume credits
Onboarding Model
Self-serve for API and MCP; dedicated onboarding for enterprise custom plans
Developer self-serve with documentation; enterprise onboarding supported by team
Self-serve for Basic; sales-assisted onboarding for Pro and Enterprise

What Experts Say

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
V

Verified Reviewer

Product Engineer, GTM Platform

"The API is clean, fast, and well-documented, which makes integration with existing workflows almost effortless. Crustdata delivers real-time updates instantly — this has been a game changer for us in lead generation, customer profiling, and market research."
Verified User for Crustdata
V

Verified Reviewer

Account Executive, Mid-Market SaaS

"Seamless.AI gives me multiple phone number options and more than one email per contact — and they're updated regularly using AI in real time. It's become a core part of my daily prospecting workflow."
Verified User for Seamless.AI

Frequently Asked Questions

Is Crustdata better than Seamless.AI?

It depends on your use case. Crustdata The first B2B data search engine built for AI agents — real-time people and company intelligence via clean, fast APIs Seamless.AI The real-time search engine for B2B sales leads — find anyone's email or phone number instantly

What is the difference between Crustdata and Seamless.AI?

See the feature-by-feature comparison above. In short: Crustdata focuses on The first B2B data search engine built for AI agents — real-time people and company intelligence via clean, fast APIs while Seamless.AI focuses on The real-time search engine for B2B sales leads — find anyone's email or phone number instantly.

How much does Crustdata cost compared to Seamless.AI?

Crustdata pricing model: Credit-based API subscription. Seamless.AI pricing model: Credit-based subscription (annual contract).

Is Crustdata or Seamless.AI 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.

Is Explorium better than Crustdata?

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 Crustdata The first B2B data search engine built for AI agents — real-time people and company intelligence via clean, fast APIs

What is the difference between Explorium and Crustdata?

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 Crustdata focuses on The first B2B data search engine built for AI agents — real-time people and company intelligence via clean, fast APIs.

How much does Explorium cost compared to Crustdata?

Explorium pricing model: Usage-based with custom plans. Crustdata pricing model: Credit-based API subscription.

Is Explorium or Crustdata 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.

Is Explorium better than Seamless.AI?

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 Seamless.AI The real-time search engine for B2B sales leads — find anyone's email or phone number instantly

What is the difference between Explorium and Seamless.AI?

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 Seamless.AI focuses on The real-time search engine for B2B sales leads — find anyone's email or phone number instantly.

How much does Explorium cost compared to Seamless.AI?

Explorium pricing model: Usage-based with custom plans. Seamless.AI pricing model: Credit-based subscription (annual contract).

Is Explorium or Seamless.AI 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.

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.

Is Crustdata a prospecting tool or a data infrastructure API?

Crustdata is fundamentally an API-first data infrastructure platform — not a traditional prospecting tool with a search UI. It is designed for developers and data engineers building products or workflows that need programmatic access to real-time company and people data. There is no built-in list-builder or export workflow for non-technical users. If your team needs a no-code prospecting interface, Crustdata should be integrated as the backend data layer of another tool.

What makes Crustdata's data different from static B2B databases?

Crustdata aggregates data continuously from live sources — LinkedIn, SEC filings, funding databases, Glassdoor, G2, web traffic services, and news aggregators — rather than relying on periodic database refreshes. This means company signals like headcount changes, executive moves, and funding announcements are available in near real-time via webhooks, rather than weeks or months later. The platform also offers a Web Search API that surfaces fresh, structured web documents on companies and people for LLM-ready intelligence.

What kinds of signals can I monitor with Crustdata webhooks?

Crustdata webhooks can notify your system in real time when tracked companies experience key events: funding announcements, headcount growth or decline (by department), executive hiring or departures, new job openings, product launches, significant news mentions, and web traffic changes. This enables trigger-based outreach — for example, automatically queuing an account for outreach the moment they raise a Series B or hire a new VP of Sales.

How does Crustdata compare to People Data Labs or Clearbit for API use cases?

Crustdata differentiates from People Data Labs (PDL) and Clearbit primarily through its depth of company growth signals and its explicit focus on AI-agent use cases. While PDL and Clearbit are strong for bulk contact enrichment and firmographic append, Crustdata layers on time-series headcount data, funding signals, web traffic trends, and a Web Search API — making it more suitable for dynamic, signal-driven workflows than static enrichment pipelines. Crustdata is also a newer, smaller company with less established enterprise support infrastructure.

Can Crustdata be used to find email addresses and phone numbers for outreach?

Crustdata's primary focus is company intelligence and people profile data — not deliverable email and phone lookups for cold outreach. While people profiles contain contact signals and professional information, Crustdata is not optimized for direct-dial or verified email delivery at the level of tools like UpLead or Apollo. Teams building AI outreach tools on Crustdata typically combine it with a contact data provider for verified emails and phone numbers.

What is Crustdata's Y Combinator backing and what does it mean for the product?

Crustdata is part of Y Combinator's Fall 2024 (F24) batch, having been founded in 2023 by Chris Pisarski, Abhilash, and Manmohit Grewal. The YC backing validates the team and mission but also reflects the company's early stage — it is still building out enterprise-grade support, compliance documentation, and product maturity. The YC network provides access to a relevant customer base of AI-native startups, which aligns well with Crustdata's positioning as infrastructure for AI agents.

Does Crustdata have a Claude Code Skill or Claude Plugin?

Not officially — Crustdata 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.

How does Seamless.AI's real-time search differ from traditional B2B databases?

Unlike static databases that are refreshed periodically, Seamless.AI re-crawls and verifies contact data at the moment of each search. This means you're getting the most current available information rather than data that might be months old — though the real-time nature doesn't guarantee 100% accuracy, as user-reported bounce rates average 15–25%.

What exactly is a credit in Seamless.AI, and do unused credits roll over?

One credit reveals one contact — including email address, phone number(s), and associated firmographic insights. Credit rollover policies vary by plan; the free tier provides 50 lifetime credits, while paid plans typically do not roll over unused credits month to month. Pro and Enterprise plans can negotiate rollover terms in their annual contracts.

Does Seamless.AI's Chrome extension work on sites other than LinkedIn?

Yes — the Chrome extension works on LinkedIn profiles, company websites, and other web pages. When browsing a company website or individual's professional page, the extension can attempt to surface contact information. However, LinkedIn is the primary and most reliable surface for the extension.

What makes Seamless.AI's AI pitch intelligence different from basic templates?

Seamless.AI's AI pitch intelligence analyzes a prospect's role, company, industry, and available signals to generate personalized talking points, pain points, and outreach angles specific to that individual — rather than generic templates. This is designed to help reps craft more relevant opening lines and cold call scripts without spending time on manual research.

How difficult is it to cancel a Seamless.AI subscription?

Cancellation is one of the most frequently cited complaints in user reviews. Seamless.AI requires written cancellation notice within a specific window before contract renewal, and many users report difficulty navigating the process. Pro and Enterprise plans are annual contracts, and failure to cancel within the specified notice period often results in automatic renewal. Always review the contract terms carefully before signing.

Is Seamless.AI suitable for international prospecting outside the US?

Seamless.AI has global coverage but its database and data quality are strongest for North American contacts. International coverage — particularly for EMEA and APAC — is less comprehensive, and phone number accuracy for non-US contacts is notably lower. Teams focused heavily on international markets may want to supplement with providers that specialize in those geographies.

Does Seamless.AI have a Claude Code Skill or Claude Plugin?

Not officially — Seamless.AI 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.