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A marketplace for product partnerships

List your product. Let others earn by promoting it.

List for free, set a commission, and approve who can promote your product. Partners can browse the marketplace, compare offers, and get the information and links they need. AI tools can read the same public listings too.

Step 1

What are you listing?

Choose the type that best describes your product.

You're creating: SaaS / AI tool

Add the key product, commission, and promotion details before your listing goes live.

The problem

Want others to promote your product? They need more than a link.

They need to understand what you sell, who it helps, what they can earn, and how to get started.

01
Managing it all takes time.

Answering questions, reviewing requests, and sharing links by hand pulls you away from your product.

02
A link leaves out the details.

It does not explain who the product is for, what partners can earn, or how they should promote it.

03
Scattered information causes delays.

When the rules and product details live in different places, people have to ask you before they can start.

The solution

Put everything a partner needs in one place.

Your listing explains the product, who it is for, what partners can earn, and the rules they need to follow. People browse it in the marketplace. AI tools can read the same public offer through the API.

  • A clear description of your product and who it helps
  • The commission, rules, and how results are confirmed
  • Applications and approvals stay under your control

Public product API · same database

The marketplace is for people to browse. The public API gives AI tools another way to read and evaluate the same product and partnership information.

Public listing API excerpt● same listing
{
  "product_id": "7c4f6c02-345f-4d0b-b2fd-f051b4a13a03",
  "name": "ProspectSonar",
  "summary": {
    "one_line_summary": "Search and export verified B2B prospect lists by niche, location, and signals."
  },
  "audience": {
    "target_audience": [
      "Agencies looking for new clients"
    ]
  },
  "commercials": {
    "commission_status": "confirmed",
    "commission_display": "20% revenue share for 12 months"
  }
}
How it works

How Comstein works

You list the product. Partners browse offers and apply. You approve them. For managed checkout, Comstein records paid sales and calculates commission.

For founders

List your product and choose who can promote it

Create a listing, choose the commission, and review applications. Approved partners get the information and links they need.

  1. Step 01

    List your product

    Explain what it does, who it is for, and what result you want. Listing is free.

  2. Step 02

    Set the commission and approve partners

    Choose what partners can earn. Approve each person before they promote your product.

  3. Step 03

    Track checkout sales and commission

    For managed checkout, Comstein records paid sales and calculates the partner commission.

Create your free listing→
Inside the product marketplace

See what partners look for in an offer.

A product website tells customers what they can buy. A Comstein listing tells partners who the product is for, what they can earn, how to promote it, and what the rules are. Together, these listings form a public product database that AI tools can read too.

Browse partnership offers →
PRProspectSonar logo

Marketplace listing example

ProspectSonar

Software product · prospectsonar.cloud

Search and export verified B2B prospect lists by niche, location, and signals.

Partner commission
20%for 12 months

Founder-confirmed revenue share

Product pricing
Subscription

Product billing model

What it does

ProspectSonar is the prospect sourcing step before outbound. It helps agencies, founders, freelancers, and small sales teams build usable lead lists without manually searching Google, LinkedIn, directories, and company websites.

Who it is for

Agencies looking for new clients

Best use case

Build outbound lead lists
Partner guidance

ProspectSonar is easiest to sell to people who already do outbound but hate building lists manually. The best pitch is simple: if you know your target niche, ProspectSonar helps you find, verify, and export prospects faster.

Where partners can promote

ContentSEOCommunitiesOutboundDirectory listingsAI agent recommendations

Rules and restrictions

  • Avoid spam outreach
  • Avoid misleading claims
  • Do not claim guaranteed results
  • Do not claim official partnerships unless verified
  • Do not exaggerate capabilities
Available in the public APIApplications currently closed
View the complete listing

ProspectSonar is one published listing example. Browse the marketplace to compare more product-partnership offers.

For founders

Explain your product once.

Keep the product details, commission, rules, and links in one place. Approved partners see the latest information when they need it.

How founder accounts work →
Free to list

Create a listing at no upfront cost. You choose the commission for the result you want.

You approve each partner

Review every application and decide who can promote your product.

One place for the details

Update your listing once. Partners and AI tools can read the same current information.

Track sales from partners

For managed checkout, Comstein records paid sales and calculates the partner commission.

Tools for partners and payments

Help partners get started. Keep commission records clear.

Partners can use an optional toolkit to find places to promote your product. For managed checkout, Comstein records paid sales and calculates commission.

Optional partner toolkit

Find relevant Reddit conversations.

Partners can use this toolkit to find public threads and prepare replies. They review and post everything themselves. Reddit is only one possible channel.

Example workflow for 100 threads
Threads found100
Replies prepared30
Replies posted20
Clicks80
Signups6
Work stepsResults

Human-reviewed · Manual posting · Optional channel

See the partner toolkit
Commission records

See the result and the commission.

With managed checkout, the customer pays the founder. Comstein records which partner brought the sale and calculates the commission. The founder pays the partner separately.

Customer

Buys through a partner's link

stripeStripe checkout

Payment goes to the founder's account

Founder’s Stripe account

Receives customer funds; Stripe handles bank payouts

Comstein records the commission

The record is not a money transfer. The founder pays the partner separately.

Managed checkout · Partner recorded · Commission calculated

How payments work
Why now

AI tools are helping people find products.

They need clear information to understand what a product does and when it fits. Comstein makes your listing readable to people and AI tools.

01 —
People use AI to compare products.

AI tools can help people search, compare, and choose products.

02 —
AI needs clear information.

A complete listing explains the product, customer, commission, and rules in a form AI tools can read.

03 —
One listing works for both.

Partners read the page. AI agents can discover and evaluate the same public offer.

Trust & control

You stay in control.

You choose the commission. You review applications. You can see when checkout is ready. You can list your product elsewhere too.

Complete listingsPartners you approveManaged checkout sales
Ready to publish

Complete the listing before it goes live.

Add the product, customer, commission, promotion rules, and result details. Comstein shows you what is still missing.

Listing checklist4 / 4 passed
  • Product details
  • Who it is for
  • Promotion rules
  • Commission & results

You approve each partner.

See every application. Approve only the people you want to promote your product.

Partner approvals3
  • Newsletter partner
    Approved
  • Content partner
    Approved
  • AI agent
    Pending

See when checkout is ready.

A listing shows whether Stripe is connected and managed checkout is available. Partners can see this before they apply.

stripeConnected
Verified
Managed checkout/checkout?ref=…
Records paid results
Non-exclusive

List your product elsewhere too.

Comstein is non-exclusive. Your product and offer remain yours.

Where you can list it
  • CComstein
  • Your website
  • Other marketplaces
  • Direct outreach

Comstein is one option. You can use other channels too.

For founders

List your product and start reviewing partners.

Create your free listing→See live listings