Causo

Describe your buyers in plain English and Causo's AI researches public sources to find matching companies, decision-makers and verified emails, with evidence behind each match

Freemium Marketing & Sales
Visit Website ↗ by Causo

What is Causo?

Causo is a deep-research and outbound agent for startup go-to-market: describe your buyers in plain English and its swarms of agents research unlimited public sources — websites, filings, job posts, registries and trade directories — to find companies and contact their decision-makers. Every match shows what the company does and why it fits, with the sources behind it.

It verifies each decision-maker's email, drafts outreach in your voice from your inbox (editable before anything goes out), and works in chat or via MCP inside ChatGPT and Claude. Pricing is token-based: start free with 50 tokens and no card, then $19, $79 and $259 per month tiers plus Enterprise, at one token per completed action.

Key features

  • Plain-English buyer descriptions — no filters to build
  • Research across websites, filings, job posts, registries and trade directories
  • Verified decision-maker emails with evidence for every match
  • Outreach emails drafted in your voice, editable before sending
  • MCP server for ChatGPT and Claude
  • CSV export of companies, contacts and campaigns

Pros

  • Evidence behind every match, not a stale database row
  • Free start with 50 tokens, no card required
  • Works inside ChatGPT and Claude via MCP

Cons

  • Token pricing means heavy research adds up (top-ups $0.30 per token on higher tiers)
  • Built for founders and small teams doing their own outreach, per its own site

Causo at a glance

PricingFreemium
CategoryMarketing & Sales
Platformsweb
CompanyCauso
Best forFounders and small teams finding their first customers without a data-vendor subscription
Official websitecauso.ai
sales researchlead generationoutboundverified emailsmcp

How to choose the right Marketing & Sales tool

Marketing and sales tools are only as good as the channels and data they connect to. Start with coverage: does the tool handle the work you actually do — email, social, ads, SEO, outreach — or just one slice? Integrations with your CRM and analytics decide whether it becomes a system or another silo, and reporting should show business results, not vanity metrics. For AI content features, check output quality and brand-voice controls; for outreach, deliverability and personalisation depth matter more than send volume. Be wary of tools that promise automatic growth: the durable wins come from faster testing, better targeting and cleaner follow-up, all of which still need your judgement on top.

Compare all Marketing & Sales tools →

Causo FAQs

What is Causo?

Causo is a deep-research and outbound agent for startup go-to-market: describe your buyers in plain English and its swarms of agents research unlimited public sources — websites, filings, job posts, registries and trade directories — to find companies and contact their decision-makers. Every match shows what the company does and why it fits, with the sources behind it.

What are the main features of Causo?

Causo offers Plain-English buyer descriptions — no filters to build, Research across websites, filings, job posts, registries and trade directories, Verified decision-maker emails with evidence for every match, Outreach emails drafted in your voice, editable before sending, MCP server for ChatGPT and Claude and CSV export of companies, contacts and campaigns.

How much does Causo cost?

Causo follows a freemium model: a free tier is available, and paid plans unlock higher limits and advanced features. Check its official website for current plan prices.

What are the pros and cons of Causo?

Strengths of Causo include Evidence behind every match, not a stale database row; Free start with 50 tokens, no card required; Works inside ChatGPT and Claude via MCP. On the downside, Token pricing means heavy research adds up (top-ups $0.30 per token on higher tiers); Built for founders and small teams doing their own outreach, per its own site.