Free / Open-sourceAll-in-one customer platform for email, SMS, CRM, and automation

MCP Search (MCP Stack) records 0 monthly visits with 0% month-over-month growth and Paid pricing. Success.ai records 547,073 monthly visits with +6.3% growth and Freemium, Free Trial pricing.
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | mcp-stack.com | success.ai |
| Pricing Model | Paid | Freemium, Free Trial |
| Monthly Visits | 0 (0) | 547.07K (547,073) |
| MoM Traffic Delta |
| 0 (0%) |
| +32.54K (+6.3%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (69.9%) |
|---|
| Direct Visits / mo | 0 | 42.5K |
|---|
| User Rating | 4 | 4 |
|---|
| Supported Platforms | Website | Website |
|---|

Hyper-targeted B2B prospect lists for France, built for teams and AI agents
Describe your target in plain French and get a cross-referenced list, instead of stacking 8+ filters across NAF codes, revenue thresholds and tenure.
Crosses legal registry records (SIREN/SIRET, officers, financials), Google Maps establishments, public LinkedIn company data and open web contacts.
Around 27M legal entities, roughly 29M profiles and experiences, and about 1.4M establishment records accessible within the same query intention.
An MCP endpoint designed so Claude, Grok or a custom agent can run the same fine-grained French account queries, planned for public release at launch.

AI sales platform for unlimited B2B leads and outreach
Lead Finder gives unlimited access to a database of 700M+ buyer emails and phone numbers, with search and targeting tools.
Follow active buyers using interest signals based on specific topics or keywords, so outreach targets prospects showing real intent.
Verify and enrich emails and phone numbers, and clean your lists before you start a campaign.
Connect unlimited sending accounts, use email warmup to protect deliverability, and manage replies in one unified inbox.
Free / Open-sourceAll-in-one customer platform for email, SMS, CRM, and automation


Offers massive cold email volume infrastructure and built-in lead databases, but with fewer advanced autonomous prospecting agent features.
#2SpecialistUnifies dozens of data enrichment providers and custom AI workflows, but requires more manual setup for cold email campaigns.
#3Delivers enterprise-grade revenue execution and conversation intelligence, but is overly complex for small teams and solo founders.

Excels at email deliverability management and unlimited mailbox warmups, but lacks Success.ai's integrated B2B contact database search.
Provides powerful multichannel outreach across email, phone, and LinkedIn, but comes at a significantly higher price point.
Find verified work emails and write personalized outreach with AI

Free / Open-sourceAI-powered B2B data platform for finding verified contacts, companies, and lookalike audiences

SpecialistGenerates targeted contact audiences from natural language prompts, but focuses less on traditional cold email warmup.
Focuses on unified reply inboxes and email warmup, but offers less robust database search than Success.ai.

Your all-in-one AI sales edge for smarter B2B outreach
Free / Open-sourceAll-in-one customer platform for email, SMS, CRM, and automation
Excels at email deliverability management and unlimited mailbox warmups, but lacks Success.ai's integrated B2B contact database search.
Find verified work emails and write personalized outreach with AI
Free / Open-sourceAI-powered B2B data platform for finding verified contacts, companies, and lookalike audiences
SpecialistGenerates targeted contact audiences from natural language prompts, but focuses less on traditional cold email warmup.
Focuses on unified reply inboxes and email warmup, but offers less robust database search than Success.ai.
Your all-in-one AI sales edge for smarter B2B outreach