ClimbX: an X growth co-pilot at $1,276 MRR (Stripe-verified), built by a solo founder with Claude Code and Codex
A writing tool for X that finds posts doing well in your niche, drafts posts in your own voice, schedules them through X's official API and surfaces posts worth replying to.
$1,276 MRRper month, from 44 active subscriptions, $1,306 in the last 30 days; TrustMRR, Stripe-verified, Nov 2, 2026
Figure read from TrustMRR on ; source published (X). Last checked by Shipped & Paid on . What these dates mean
- Verification
- Verified Revenue read from a payment provider via a public third-party profile (e.g. TrustMRR) that matches the claim. See verification.
- App type
- Marketing & social
- Currency
- US dollars (USD)
- Built with
- Claude Code, Codex
- Got customers via
- X, Building in public, SEO, Reddit
- Prior audience
- About 2K followers on X when ClimbX went live on May 16, 2026, per his own article (he had started posting on April 1)
- Source
- Daniel Smidstrup (@DanielSmidstrup, founder) on X, Oct 18, 2026
“I spent about 5 days building the base version of ClimbX.”
Editor's note: Daniel Smidstrup is a 26-year-old developer from Denmark and a former CTO at a startup he says did $700k ARR, so he isn't a beginner. In his Oct 18 article on X he lists his stack as Next.js on Vercel, Supabase, and "Claude Code and Codex for building". He says growing past $1k MRR has been hard and that most of his roughly $7K month in September came from paid posts, not ClimbX.
How they got customers
He built an audience on X first: about 50+ replies a day to bigger accounts at the start, later 8 posts and 250–400 replies a day, reaching 2k followers by launch and about 12.9k by October. ClimbX came from followers asking how he grew so fast; free trials started on launch day and the first paying users came around day 7. A Reddit post in r/indiehackers got discussion but almost no signups, and an $867 Meta ads test brought 0 paying customers. He is now working on SEO.
Steps to try
Grow an audience on X first by replying every day and posting several times a day.
From the sourceTurn the question your followers keep asking (how did you grow so fast?) into a product.
From the sourceBuild the base version in about 5 days with Claude Code and Codex on Next.js, Vercel and Supabase.
From the sourceLaunch with a $1 trial to your audience and get the first paying users in about a week.
From the sourceTest other channels (Reddit, Meta ads) and keep what actually converts, which for him is X and now SEO.
From the source
"From the source" steps summarize the linked post.
Source
We summarize and link. Figures are reproduced as stated and are unaudited unless marked Verified. Founder? Request a correction or removal, or get a badge for your site.
Cite this case: ClimbX: $1,276 MRR (verified, Nov 2, 2026). Via Shipped & Paid, https://shippedandpaid.com/cases/climbx-x-growth-copilot-1-3k-mrr-claude-code-codex/ Free to quote with a link back to this page.
Quick answers
How much does ClimbX make?
ClimbX reports $1,276 MRR (per month, from 44 active subscriptions, $1,306 in the last 30 days; TrustMRR, Stripe-verified, Nov 2, 2026). Source: Daniel Smidstrup (@DanielSmidstrup, founder) on X, Oct 18, 2026. Proof level: Verified. Revenue read from a payment provider via a public third-party profile (e.g. TrustMRR) that matches the claim.
What was ClimbX built with?
The source says it was built with Claude Code and Codex.
How did ClimbX get customers?
Main growth channels: X, Building in public, SEO and Reddit. He built an audience on X first: about 50+ replies a day to bigger accounts at the start, later 8 posts and 250–400 replies a day, reaching 2k followers by launch and about 12.9k by October. ClimbX came from followers asking how he grew so fast; free trials started on launch day and the first paying users came around day 7. A Reddit post in r/indiehackers got discussion but almost no signups, and an $867 Meta ads test brought 0 paying customers. He is now working on SEO.