Railway Referral Code: KU-3Zb
Railway's referral code — the one people search for as a Railway promo code — is KU-3Zb. New accounts that sign up through it get $20 in credits on signup, four times the standard $5 trial credit — room to put a Telegram bot or a small backend online before you pay anything. After that, Hobby is $5 a month and Pro $20 a month per workspace, each with that much usage included.
What You Get
| Standard sign-up | With code KU-3Zb | |
|---|---|---|
| Credits on signup | $5 one-time trial credit (30 days) | $20 in credits |
Railway Plans
| Plan | Price | Included usage | For |
|---|---|---|---|
| Free | $0 | $1 of credit a month | One member, small experiments |
| Hobby | $5/mo | $5 of usage | Solo developers and side projects |
| Pro | $20/mo per workspace | $20 of usage | Teams; unlimited seats |
From railway.com/pricing, checked 2026-10-11. Usage beyond the included amount is billed by the resources your services use.
How to Use the Code
- 1Open Railway with the button above — the link carries code KU-3Zb.
- 2Create your account. The $20 in credits is added to it on signup.
- 3Create a project and deploy from your GitHub repository; Railway builds it and keeps it running.
Related
Frequently Asked Questions
What is the Railway referral code?
KU-3Zb. New accounts that sign up through a link with this code get $20 in Railway credits on signup, four times the standard $5 trial credit.
Is there a Railway promo code?
Railway's sign-up bonus comes through referral codes: KU-3Zb gives a new account $20 in credits on signup, against the standard $5 trial.
How much is Railway's free trial without a code?
A one-time $5 credit for 30 days, with no credit card required (railway.com/pricing).
Can I add a referral code after signing up?
The code is applied when the account is created through the referral link, so open Railway through the link before you sign up.
Is Railway free?
There is a Free plan at $0 with $1 of credit a month for one member. Hobby is $5 a month and includes $5 of usage; Pro is $20 a month per workspace, includes $20 of usage and has unlimited seats.
What happens when the credits run out?
Your plan's included usage is spent first; beyond it Railway bills the resources your services use at the plan's rates.
Is Railway good for hosting a Telegram bot?
Yes. It deploys straight from a GitHub repository, keeps the bot running around the clock, and shows its logs — our step-by-step guide walks through a deployment.
Railway pays us a share of what you pay once you pay your first bill. Your price and credits are the same either way.