Developer-first SaaS stack for solo founders and small teams

One API instead of 6 stitched tools.

No webhooks. No data sync. No glue code. Just one system for your entire user lifecycle — on a single user record.

One user record (no duplication)

Internal events (no webhooks)

CLI-first setup (no dashboards)

Clean env promotion

Get API key See how it works

CLI-first setup

$ascendkit init

$ascendkit auth --providers google,linkedin

$ascendkit journey create

$ascendkit env promote

✓auth.ready

✓journey.live

✓env.promoted

Configure the stack from the terminal or from Claude Code / Codex. No dashboard maze.

What usually happens after auth

Every next lifecycle need adds another system, another source of truth, and another way for customer state to drift.

Add email

Verification, reset, and welcome flows move to a second system with its own domains and delivery config.

Add journeys

Lifecycle messaging now depends on a third vendor with its own contacts and event model.

Add surveys

Responses live in yet another system. Mapping them back to users means sync jobs or webhook chains.

Live with the drift

Your user now exists in four places. Keeping them in sync becomes the real product.

AscendKit

Start with auth if you want. Keep the rest of the lifecycle on one system before the stack turns into an integration project.

One user record across auth, messaging, surveys, and analytics
Internal events instead of webhook chains
No contact sync jobs just to keep lifecycle state coherent
One operational model instead of six partially connected tools

Differentiation

One system. Not 6 glued together.

AscendKit is not a feature bundle. It is one operational model for the full user lifecycle.

Unified user record

Auth, messages, surveys, logs, and analytics attach to one customer record instead of being duplicated across vendors.

Internal events, not webhooks

Signup, activation, survey completion, and journey transitions stay on one event system instead of crossing service boundaries.

CLI + MCP configuration

Configure the stack from the terminal or directly through Claude Code / Codex instead of clicking through multiple dashboards.

Environment promotion

Configure in dev, diff the stack, and promote cleanly to staging or production without rebuilding config by hand.

The point isn't more features. It's one system.

Log-Correlated Funnels

See exactly why users drop off.

Most tools show you where users drop off. AscendKit shows you why.

Product errors, journey state, and user events — all in one system.

Funnels, product errors, and lifecycle state live on the same user record
Find the exact errors around a drop-off instead of only seeing the drop-off count
Tie product issues directly to onboarding and activation fallout

Onboarding Funnel

47 users entered

Completed

Dropped

At risk

Logs Correlated

4 of 17 onboarding drop-offs hit a 500 on /api/onboarding

6 users never entered the follow-up journey after signup

How it works

Set up your SaaS in minutes, not days.

Install once. Configure the stack from the CLI or Claude. Ship with clear outputs instead of guessing which tool is half-configured.

Install

$ npm install @ascendkit/nextjs

Tell Claude what you need

Claude Code MCP"Set up auth, create an onboarding journey, add an NPS survey, and promote the stack to production."

Ship

auth.ready ✓ journey.live ✓ env.promoted ✓

Prefer the terminal? Every step above has an equivalent ascendkit CLI command.

Lifecycle Expansion

Every SaaS ends up rebuilding the same stack.

You start with auth. Then email. Then journeys. Then surveys. Then analytics. Most teams add a new tool at each step. AscendKit keeps the whole progression on one system.

auth→

email→

journeys→

surveys→

analytics

Pricing

Replace $120+ in tools with one platform.

Clerk + Resend + Loops + Typeform quickly become the expensive path. AscendKit cuts both software spend and integration overhead.

Clerk + Resend + Loops + Typeform = $120+/mo

AscendKit Launch = $49/mo, before you count the engineering time saved by not stitching the stack together yourself.

Get API key

Free

For evaluation and side projects.

per month

MAU: 1,000
Projects: 1
Environments: 1
Emails/mo: 1,000

Start building

Frequently asked questions

Can I switch plans at any time?: Yes. Upgrades take effect immediately; downgrades apply at the next billing cycle.
What happens when I exceed my MAU limit?: We'll notify you before you hit the limit. You can upgrade then — we won't cut off your users mid-cycle.
Is there a free trial for paid plans?: The Free tier is fully functional with no credit card required. Start there and upgrade when your usage grows.
Do you offer discounts for annual billing?: Annual plans are coming soon. Sign up to be notified when they're available.
Can I cancel anytime?: Yes, no lock-in. Cancel from your billing settings and you keep access until the end of the period.
What payment methods do you accept?: All major credit and debit cards via Stripe. Invoicing available on the Scale plan.