Causo is a Sales engagement & outbound tool: AI prospecting agent that researches leads with sources, plus MCP.

How much does Causo cost?

Causo uses a Freemium model; paid plans start at $19 per month.

What are the best alternatives to Causo?

Community-listed alternatives to Causo include Reply.io, AI Lead Gen Tool for Reddit, HN, Bluesky & X, Needle, Saleshandy.

What does Causo integrate with?

Causo integrates with Claude, ChatGPT, Cursor, Claude Code, Codex, Findymail and more.

Causo

AI prospecting agent that researches leads with sources, plus MCP

Freemium · $19AI assistants Sales engagement & outbound

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Causo is a sales engagement & outbound tool for Small businesses and Freelancers, offered as freemium ($19/mo). Based in United Kingdom, founded in 2025. Popular alternatives include Reply.io, AI Lead Gen Tool for Reddit, HN, Bluesky & X, Needle.

About Causo

Causo is an AI prospecting tool from Causo Ltd, a London company incorporated in October 2025 and run by co-founders Ivan Semenov and Dawid Baranowski. You describe your ideal customer in plain language, and its agent searches public sources for matching companies, explains why each one fits with links, then finds decision makers, verifies their emails and drafts outreach.

Research draws on public sources such as websites, filings, job posts, registries and trade directories, with contact lookup through providers like Findymail, Apollo and Hunter. You can refine a list with follow-up questions, export CSV, connect mailboxes and send sequences you edit first. A separate Fundraising product finds funds and partners for a round. Billing uses tokens: one per matching company, verified contact, sourced answer or sent sequence. Free gives 50 one-time tokens, and paid plans add monthly tokens and more mailboxes.

It suits founders and small sales teams selling into niche markets that database filters cover poorly. Apollo and ZoomInfo offer far larger contact databases and full sequencing, while Clay is more flexible for multi-source enrichment but harder to learn. Causo has no stated CRM sync and is a two-founder company, and heavy volume uses tokens fast.

Causo launched its sales prospecting product with MCP support on Product Hunt on October 22, 2026 and finished #12 of the day; its earlier Fundraising launch placed #5 on May 14, 2026. Buying tip: prices are labelled early bird launch pricing, so test the free tokens on one niche first.

Key features of Causo

Plain-language ideal customer search across public web sources
Sourced evidence explaining why each company matches
Decision-maker lookup with email verification
Research-based outreach drafts you edit before sending
Connected mailboxes and one-token outreach sequences
Remote MCP server for Claude, ChatGPT, Cursor and Codex
Fundraising mode that matches VC funds and partners
CSV export on paid plans

Pros and cons

Pros

Finds companies in niches that static databases miss
Every match comes with sources you can check
Low $19 entry plan and a free start without a card
MCP access included with every plan
Empty results are refunded when run through MCP

Cons

No CRM integration named on the site
Tokens run out quickly on large prospect lists
Prices are marked early bird and may change
No security or GDPR documentation on the homepage
Small two-founder team behind the product

Causo pricing

Causo uses a freemium model.

Plan	Price	Includes
Free	$0	50 one-time tokens, 20 agent messages, 1 mailbox, no card
Let me try	$19 / mo	100 tokens/mo, unlimited agent messages, CSV export
Founder's Delight	$79 / mo	500 tokens/mo, up to 3 mailboxes, top-ups $0.30/token
Serious Business	$259 / mo	2,000 tokens/mo, up to 5 mailboxes, top-ups $0.30/token
Enterprise	Custom	Custom tokens, unlimited mailboxes, team workspace

Source: causo.ai · checked on Oct 25, 2026

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How Causo compares in Sales engagement & outbound

Rank by votes: #1 / 27
Starting price: $19
Free alternatives: 1

Causo ranks #1 of 27 sales engagement & outbound tools by community votes and is priced below most tools in the category.

Common use cases

1Building lead lists for niche sectors like care homes or logistics
2Researching specific questions about target accounts with sources
3Drafting personalised first-touch emails from company research
4Running prospect research inside Claude or ChatGPT via MCP
5Finding seed-stage VC funds and the right partner to email

Best for

Founders and small sales teams prospecting into niche markets who want sourced research rather than raw database filters.

Not ideal for

Sales teams that need a huge contact database, CRM sync and full multichannel sequencing (Apollo, ZoomInfo).

Integrations

Claude
ChatGPT
Cursor
Claude Code
Codex
Findymail
Apollo
Hunter

Our take

Causo is worth testing if your buyers are hard to find with standard filters, because its sourced matches save manual research. Treat it as a research and first-touch tool, keep your CRM and sequencer, and watch token use before moving to the $79 plan.

FAQ

What is Causo?: Causo is a Sales engagement & outbound tool: AI prospecting agent that researches leads with sources, plus MCP.
How much does Causo cost?: Causo uses a Freemium model; paid plans start at $19 per month.
What are the best alternatives to Causo?: Community-listed alternatives to Causo include Reply.io, AI Lead Gen Tool for Reddit, HN, Bluesky & X, Needle, Saleshandy.
What does Causo integrate with?: Causo integrates with Claude, ChatGPT, Cursor, Claude Code, Codex, Findymail and more.
Which platforms does Causo support?: Causo is available on web.
Who is Causo for?: Founders and small sales teams prospecting into niche markets who want sourced research rather than raw database filters.

Alternatives to Causo

See all 10

Reply.io
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Multichannel cold outreach with an AI SDR for B2B sales teams
Paid · $59Small businesses
checked Oct 20
AI Lead Gen Tool for Reddit, HN, Bluesky & X
▲ 0
Find buyers asking for tools like yours on Reddit, Hacker News, Bluesky & X.
Paid · $19Freelancers
Needle
▲ 0
Outbound engine you run from Claude, ChatGPT or Slack via MCP
Paid · $69Agencies
checked Oct 22
Saleshandy
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Cold email platform with unlimited sender accounts and a lead finder
Paid · $41Agencies
checked Oct 20
Woodpecker
▲ 0
Cold email automation priced by contacted prospects, not seats
Paid · $35Small businesses
checked Oct 20
Hunter
▲ 0
Find and verify professional email addresses
Freemium · $49Small businesses
checked Oct 20

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Gong
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B2B contact and company data platform with AI sales tools
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Şirket Burada
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Türkiye genelindeki firmaları keşfedin, kategoriye ve şehre göre filtreleyin; yo
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Microsoft Dynamics 365
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Microsoft's CRM and ERP suite with Copilot for mid-size and enterprise
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checked Oct 20
Proposify
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