Show “Tuesday, 2–4 PM” instead of “3–5 days”
One API call returns a delivery window your customers actually trust. 6 German carriers. <100ms. Free to start.
No credit card required. 500 free requests every month.
Predicted delivery
Mittwoch, 25. März 2026
Delivery window
14:00 – 18:00
Confidence
Data points
Based on 1.957 deliveries
2.4M+
Predictions this month
<97ms
Median response
99.9%
Uptime last 90 days
6
German carriers
Every major German carrier. One unified API.
GDPR Compliant
Fully compliant with EU data protection regulation
AES-256 Encryption
All data encrypted in transit and at rest
EU-Only Infrastructure
Data never leaves the European Union
Teams ship better estimates with Kommt
From indie shops to enterprise retailers, teams are replacing guesswork with data-driven delivery predictions.
“Our checkout conversion improved by 12% after we started showing exact delivery windows. Customers just trust it more than '3-5 days'.”
“We replaced our homegrown carrier scraper with Kommt and cut our prediction code from 2,000 lines to 10. Accuracy actually went up.”
“Integration took 20 minutes. The confidence score is a nice touch — we only show predictions above 0.7 and it feels rock solid to users.”
Join 200+ developers shipping better delivery estimates. Start free today →
Every vague estimate costs you a customer
While you show “3–5 business days,” your competitors show Thursday by 2pm. The gap between vague and precise is measured in lost revenue.
Vague delivery windows kill conversions
Your checkout says "3–5 business days." Your competitor says "Thursday by 2pm." Customers pick the shop that gives them certainty — every single time.
Every unclear estimate is a lost sale.
Carrier integrations are an engineering black hole
DHL, Hermes, DPD, GLS, UPS, Amazon — each with different APIs, different formats, different failure modes. Your team spends months building what should take minutes.
Engineering time burned on solved problems.
Without real data, predictions are fiction
Carrier SLAs are marketing numbers, not delivery predictions. Without millions of actual tracking data points per postal code, your estimates are guesses dressed up as promises.
Broken promises erode trust permanently.
“62% of German online shoppers say delivery speed information directly influences their purchase decision.”
— Metapack State of Delivery Report
It doesn’t have to be this way
Everything you need, nothing you don't
We built Kommt to do one thing exceptionally well: predict delivery windows for German carriers.
Confidence Scores
Every prediction comes with a confidence score so you know how reliable it is. Based on real tracking data, not estimates.
Sub-100ms Response
Fast enough for checkout flows. Our API responds in under 100ms, globally.
Self-Improving
The more tracking data we collect, the more accurate predictions become. Your data makes everyone's predictions better.
Webhook Notifications
Get notified when delivery windows change. Keep your customers updated in real-time without polling.
How it works
Get started in minutes, not hours. No complex setup required.
Make one API call
Send a carrier and postal code. That's it.
Get a time window
Receive a predicted delivery window with confidence score, powered by real tracking data.
Delight your customers
Show exact delivery times at checkout, in emails, or on tracking pages. Watch returns drop.
Integrate in 5 minutes
One endpoint. Any language. Ship in minutes.
1234567curl -X POST https://api.kommt.dev/v1/predict \
-H "Authorization: Bearer your_api_key" \
-H "Content-Type: application/json" \
-d '{
"carrier": "dhl",
"postal_code": "10115"
}'1234567891011{
"carrier": "dhl",
"postal_code": "10115",
"predicted_date": "2026-03-20",
"window": {
"start": "09:00",
"end": "14:00"
},
"confidence": 0.82,
"based_on": 347
}Why choose Kommt?
See how we compare to other options.
| Feature | Kommt | Build it yourself | Enterprise platform |
|---|---|---|---|
| Integration time | 5 minutes | 2-3 months | 2-4 weeks |
| Monthly cost | From free | Dev time* | €500+ |
| Confidence scores | |||
| Self-improving predictions | |||
| No vendor lock-in | |||
| No sales calls | |||
| All 7 German carriers | Per carrier |
* Building carrier integrations yourself costs engineering time, valued at €80-150/hour
Simple, transparent pricing
Start free, pay only when you scale. No hidden fees.
Free
For hobby projects & testing
500 requests/mo
- 7 carriers
- Delivery window predictions
- Confidence scores
- Community support
Need more? Contact us for Enterprise
Frequently asked questions
Everything you need to know about Kommt.
Based on real tracking data from thousands of deliveries per postal code. Every prediction includes a confidence score so you know exactly how reliable it is.
DHL, Hermes, DPD, GLS, UPS, and Amazon Logistics. All major German carriers covered with a single integration.
They're full-suite enterprise platforms with sales cycles and six-figure contracts. Kommt is one simple API endpoint for developers. No vendor lock-in, no sales calls.
No. The free tier includes 500 requests per month with no credit card required. Upgrade whenever you're ready.
On paid plans, you can send us tracking numbers via our API. We use that data to improve predictions for your specific carriers and regions over time.
99.9% uptime on all paid plans. Check status.kommt.dev for real-time status.