Causo
Causo helps founders and GTM teams find and research companies, identify decision-makers, and prepare company-specific outbound. It returns sourced prospect research and verified contact details, with outreach drafts users can review before sending.
One of 58 tools in Sales
Who it's for
- Startup founders doing their own prospecting who want to describe target customers in plain English.
- Sales and GTM teams building prospect lists in niche or less-covered markets and needing evidence for why companies fit.
- Teams using Claude or another compatible AI assistant that want company and contact research through an MCP connector.
Not the right fit if…
- Teams who want to send outreach without connecting a mailbox: the page says to connect a mailbox when ready to send.
How it fits your workflow
Describe the companies or buyers you want to reach in plain English. Causo searches online sources and returns matching companies with explanations and evidence.
Research a company further by asking a sourced question, or find decision-makers and verified emails. The page shows signals such as hiring, funding, and company details as examples of research.
Generate an outreach draft using the company findings, edit it, and connect a mailbox when ready to send. Causo can also be accessed through an MCP connector in an AI assistant.
Pricing
Free: The free offer includes 50 tokens one time, requires no card, allows 20 messages to the agent, and lists connection of one mailbox.
Free to Start
$0; 50 tokens one time
- · No card required
- · 20 messages to the agent
- · Connect 1 mailbox
Let Me Try
$19 per month
- · 100 tokens per month; monthly allowance only
- · Unlimited messages to the agent
- · CSV export
- · Connect 1 mailbox
Founder's Delight
$79 per month
- · 500 tokens per month
- · One-time top-ups at $0.30 per token
- · Unlimited messages to the agent
- · CSV export
Serious Business
$259 per month
- · 2,000 tokens per month
- · One-time top-ups at $0.30 per token
- · Unlimited messages to the agent
- · CSV export
Enterprise
Custom
- · Custom token allocation
- · Priority support through a direct channel to the founders
- · Unlimited mailboxes
- · Shared team workspace
Prices checked on Oct 22, 2026 from the vendor's site. They can change; confirm before you buy.
Key features
- AI-assisted company search
- Describe target buyers in plain English and have Causo search across online sources for companies that match the criteria.
- Company research with evidence
- Company profiles explain what each company does and why it fits, with sources. Research can include signals such as funding, hiring, ownership, company locations, and other details found online.
- Decision-maker and email search
- Finds relevant decision-makers, maps teams, and verifies contact emails. The page describes checking addresses and confirming that a person is still in the role.
- Sourced company Q&A
- Ask a specific question about a company and receive an answer with supporting sources.
- Personalized outreach drafts
- Drafts outreach using information found about each company. Users can edit messages before sending them.
- MCP assistant connection
- A Causo MCP connector lets compatible AI assistants use company and contact research and draft emails.
Works with
- Claude via MCP
- Email inboxes
- Findymail, Apollo, Hunter, and Exa
Limitations to know
- The free offer is a one-time allocation of 50 tokens, rather than a recurring monthly allowance.
- The $19 plan lists one connected mailbox, the $79 plan lists up to three, and the $259 plan lists up to five; unlimited mailboxes are listed for Enterprise.
- The page charges tokens separately for company research, contact searches, sourced questions, and sending an outreach sequence.
Alternatives to consider
-
GMaps Lead Finder
Choose it if you specifically want Google Maps lead extraction through an MCP layer, rather than Causo's broader company research and personalized outbound workflow.
Getting started
- Start with 50 free tokens; no card is required.
- Describe your target buyers in plain English and run a search.
- Review the matches and evidence, then find contacts or ask follow-up questions.
- Draft and edit outreach; connect a mailbox when ready to send.
Frequently asked questions
Is Causo another lead database?
No. The page says Causo researches companies live against user criteria and shows why each one fits.
Where does Causo get its information?
The page lists public sources including websites, job posts, registries, filings, directories, and news. It says each match shows its evidence.
How is Causo different from asking an AI assistant for leads?
Causo checks companies against the user's criteria, shows sources, verifies email addresses, and can turn a shortlist into a campaign.
Do I need to connect my inbox to try it?
No. The page says users can find companies and draft emails first, and connect a mailbox when they are ready to send.
Does Causo work outside software and tech?
Yes. The page names manufacturing, logistics, care homes, and construction among its supported use-case areas.
What does a token pay for?
The page says one token is charged for each completed company match, decision-maker and verified email search, sourced company answer, or sent outreach sequence. Company research, contact searches, research questions, and sending are charged separately.