CartQL

CartQL

CartQL provides a GraphQL Shopping Cart API and MCP server for modern commerce.

Visit
All-time revenue
$70

Ranked #5221 on TrustMRR

MRR
-

No active subscriptions

Founder
notrabJamie Barton

4,372 followers on 𝕏

Founded
November 2019
GBUnited Kingdom

Revenue is verified withStripeStripe API key.Last updated: Aug 25, 2026, 02:50 AM

Startup insights
Value proposition

Add a shopping cart to any site, app or agent with MCP, and GraphQL APIs without replatforming.

Problem solved

Provides a developer-friendly shopping cart API that integrates with existing systems without requiring migration.

Audience

Developers

Pricing

Free: $0/mo, Pro: $29/mo

Domain Rating

12/100

cartql.com

Ahrefs Domain Rating measures backlink profile strength on a 0 to 100 logarithmic scale.

Tech stack

Backend

Screenshot

cartql.com
Tap to view

Product updates

More startups for sale

View Marketplace
FOR SALE
Earn Studies

Earn Studies

Education

EarnStudies aggregates paid focus groups and research studies ($50-$400/session) from 20+ sources into one searchable dashboard, sold as a $6.99/mo membership. Organic traffic 10x'd this summer and 300 programmatic SEO city pages just shipped (only ~30 ranking so far, the rest are upside). Emerging ChatGPT/AI-assistant referral channel, 396 registered users, 365-email opted-in list with ready-to-send sequences, ~90% margins, near-zero run cost, fully automated listing pipeline.

Revenue (30d)

$56

300%

Asking Price

$2.5k

$1.5k

Multiple

2.2x

FOR SALE
FirstRevenue

FirstRevenue

Education

Selling FirstRevenue, an IOS app that helps beginners start earning money online. Users get a personalised roadmap and daily action plans based on their goals, budget and experience. Growth is from mostly automated Titkok slideshows, while some experimentation with paid ads has been done. There is a big opportunity to expand to instagram and run more paid ads as all revenue is mostly passive now. Big upside for a buyer with an audience or paid ads network and the app could easily get past $10k/m

Revenue (30d)

$2.3k

Asking Price

$23k

$20k

Multiple

0.7x

FOR SALE
Minform

Minform

SaaS

Minform sell SaaS subscription for form/quiz builder with monthly/yearly plans.

Revenue (30d)

$96

33%

Asking Price

$5k

$3k

Multiple

2.6x

FOR SALE
GEHIRN.md

GEHIRN.md

Marketing

The tool u need to win in AI Search.

Revenue (30d)

$839

90%

Asking Price

$22k

$15k

Multiple

1.5x

FOR SALE
OCR.so

OCR.so

Productivity

Turn scanned PDFs and images into clean Markdown—from English books to Bengali records. Pay only for the pages you process.

Revenue (30d)

$155

Asking Price

$3k

Multiple

1.6x

FOR SALE
Claude Cowork Course

Claude Cowork Course

Artificial Intelligence

claudecoworkcourse.com - free Claude Cowork Course that is taught inside of claude. Email list / course downloads over 1k(growing 60-90 per week). All traffic is organic seo and direct. 950 GSC organic clicks and ~95,000 impressions in the last 28 days Some monetization via one off projects, consultations, trainings, and course bundle sales Ideal buyer is someone with an existing AI-adjacent product/newsletter who can plug this audience in on day one or someone looking to sell agency services

Revenue (30d)

$1.7k

1599%

Asking Price

$10k

Multiple

0.5x

The database of verified startup revenues

Browse 1,000+ verified startups for sale