The easiest way to integrate with the Trunkrs API
Add the Trunkrs API to your e-commerce backend or WMS through one Sendcloud integration. Ship same-day across the Netherlands and Flanders alongside PostNL and 170+ other carriers.
The easiest way to integrate with the Trunkrs API
Add the Trunkrs API to your e-commerce backend or WMS through one Sendcloud integration. Ship same-day across the Netherlands and Flanders alongside PostNL and 170+ other carriers.
The easiest way to integrate with the Trunkrs API
Add the Trunkrs API to your e-commerce backend or WMS through one Sendcloud integration. Ship same-day across the Netherlands and Flanders alongside PostNL and 170+ other carriers.
Free plan available
Works with your shop
Cancel anytime
Why integrate PostNL through the Sendcloud API?
Why integrate PostNL through the Sendcloud API?
Why integrate PostNL through the Sendcloud API?
Why integrate PostNL through the Sendcloud API?
Last-mile specialist for Dutch and Flemish retail
Ship under Sendcloud's negotiated PostNL rates from day one, or bring your own contract when you're ready.
Same-day delivery with 10:00 AMS cut-off
PostNL's evening windows and 4,500+ service points are available via Sendcloud's REST API, with no separate PostNL API credentials required.
Integrate with 170+ carriers at once
Stop maintaining and integrating different carrier and use one API for all.
GDPR Compliance
We comply with the GDPR rules to protect data and privacy in Europe.
API uptime of 99.99%
Reliable shipping software built on AWS and with top market technologies.
ISO 27001 Certified
The world’s most rigorous standards for information security.
Why integrate PostNL through the Sendcloud API?
Last-mile specialist for Dutch and Flemish retail
Ship under Sendcloud's negotiated PostNL rates from day one, or bring your own contract when you're ready.
Same-day delivery with 10:00 AMS cut-off
PostNL's evening windows and 4,500+ service points are available via Sendcloud's REST API, with no separate PostNL API credentials required.
Integrate with 170+ carriers at once
Stop maintaining and integrating different carrier and use one API for all.
GDPR Compliance
We comply with the GDPR rules to protect data and privacy in Europe.
API uptime of 99.99%
Reliable shipping software built on AWS and with top market technologies.
ISO 27001 Certified
The world’s most rigorous standards for information security.
Why integrate PostNL through the Sendcloud API?
Last-mile specialist for Dutch and Flemish retail
Ship under Sendcloud's negotiated PostNL rates from day one, or bring your own contract when you're ready.
Same-day delivery with 10:00 AMS cut-off
PostNL's evening windows and 4,500+ service points are available via Sendcloud's REST API, with no separate PostNL API credentials required.
Integrate with 170+ carriers at once
Stop maintaining and integrating different carrier and use one API for all.
GDPR Compliance
We comply with the GDPR rules to protect data and privacy in Europe.
API uptime of 99.99%
Reliable shipping software built on AWS and with top market technologies.
ISO 27001 Certified
The world’s most rigorous standards for information security.
The complete shipping API for any system
The complete shipping API for any system
The complete shipping API for any system
"Sendcloud allows us to connect to a lot of different carriers seamlessly."
Oscar Ziegler
Founder and CEO
-
Hive
"Sendcloud allows us to connect to a lot of different carriers seamlessly."
Oscar Ziegler
Founder and CEO
-
Hive
"Sendcloud allows us to connect to a lot of different carriers seamlessly."
Oscar Ziegler
Founder and CEO
-
Hive
API integration examples
API Integration
See a basic example of an API integration using Python.
Service Point Picker
See how to integrate the Service Point Picker into a custom application.
API integration examples
API Integration
See a basic example of an API integration using Python.
Service Point Picker
See how to integrate the Service Point Picker into a custom application.
API integration examples
API Integration
See a basic example of an API integration using Python.
Service Point Picker
See how to integrate the Service Point Picker into a custom application.
Instantly connect to 170+ couriers Get started now
Free plan available
Works with your shop
Cancel anytime
More than 2,600 five star reviews
Instantly connect to 170+ couriers Get started now
Free plan available
Works with your shop
Cancel anytime
More than 2,600 five star reviews
Where do you start?
Where do you start?
Where do you start?
Questions & answers
Why integrate the Trunkrs API through Sendcloud instead of directly?
Direct Trunkrs integration means managing the same-day shipping cut-off (10:00 AMS), Trunkrs Client ID and Secret authentication, and minimum-volume requirements for Flanders shipments.
Through Sendcloud, you authenticate once with your Sendcloud API key and use a single REST schema for Trunkrs alongside every other carrier in your account. A direct Trunkrs contract is required either way; Sendcloud rates aren't offered for Trunkrs.
What happens when Trunkrs updates or breaks their API?
Trunkrs is a same-day delivery specialist with tight operational windows. Direct integrators have to refresh credentials when authentication updates and re-test cut-off-time logic when Trunkrs adjusts service hours.
When you ship Trunkrs through the Sendcloud REST API, the abstraction layer absorbs those changes. Sendcloud's engineering monitors Trunkrs's documentation and adjusts the carrier connector internally. Your Sendcloud request schema stays the same.
Can I use my own Trunkrs contract?
Yes, and you have to. Trunkrs requires a direct contract; Sendcloud rates aren't offered. Request one through the Trunkrs site if you don't have one.
In Sendcloud, go to Shipping > Carriers, find Trunkrs, and click Enable own contract. Add your contract under My Contracts with the Client ID and Secret from your Trunkrs account manager. A Lite, Growth, or Premium plan is required.
Which Trunkrs products are supported through the API?
Through Sendcloud, you can ship Trunkrs's same-day and next-day services:
Trunkrs Same Day Delivery: ordered in the morning, delivered between 5:00 PM and 10:00 PM the same day, Monday to FridayNext-day delivery for parcels created after the 10:00 AMS cut-off
Maximum parcel: 10 kg, 60x40x40 cm. The Sendcloud shipping-methods endpoint returns the up-to-date list of methods enabled on your account.
Which Trunkrs-specific features does the API expose?
Trunkrs-specific same-day features exposed through the integration:
Cut-off time at 10:00 AMS for same-day delivery: labels created after that auto-shift to next-day
Same-day delivery to the Netherlands (excluding Wadden islands), Flanders, and Brussels
Minimum 50 parcels per day for Flanders shipments without a direct carrier contract
Home delivery only: no service points or lockers
5:00 PM to 10:00 PM standard delivery window
How do I track Trunkrs parcels?
Trunkrs tracking surfaces same-day delivery events between 5:00 PM and 10:00 PM. Labels created after the 10:00 AMS cut-off auto-shift to next-day delivery, so the timing of tracking events depends on when the label was created relative to the cut-off.
All events normalise to Sendcloud's status taxonomy through GET https://panel.sendcloud.sc/api/v2/tracking/{tracking_number}, with the chronological history under statuses and each event mapped to parent_status. Subscribe to the parcel-status-changed webhook for push updates. Reference: Tracking parcels.
How do I create Trunkrs return labels?
Trunkrs returns follow the same same-day windows where the contract supports them: ordered in the morning, returned in the evening (5:00 PM-10:00 PM), Monday to Friday. Specific return method availability depends on contract setup.
All return labels are created through Sendcloud's standalone v3 Returns API (synchronous or asynchronous; async is recommended for higher throughput). No outgoing parcel lookup or JWT tokens are required. Reference: Returns API overview.
How does Sendcloud's multi-carrier API compare to connecting carriers individually?
The Sendcloud REST API gives you access to 170+ carriers, including Trunkrs, through one credential set, one schema, one webhook stream, and one error model. Connecting carriers individually means handling separate authentication, payload formats, and tracking systems for each, and redoing the work every time a carrier ships breaking changes upstream.
With Sendcloud, you ship Trunkrs alongside PostNL, Bpost, DHL, and DPD, or any other carrier in your account using the same code. Route shipments between carriers based on rules (weight, destination, service level, cost) without writing carrier-specific routing logic. Fall back to alternative carriers automatically if Trunkrs's upstream system has issues.
Adding a new carrier later means adding it to your Sendcloud account, not building a new integration.
Questions & answers
Why integrate the Trunkrs API through Sendcloud instead of directly?
Direct Trunkrs integration means managing the same-day shipping cut-off (10:00 AMS), Trunkrs Client ID and Secret authentication, and minimum-volume requirements for Flanders shipments.
Through Sendcloud, you authenticate once with your Sendcloud API key and use a single REST schema for Trunkrs alongside every other carrier in your account. A direct Trunkrs contract is required either way; Sendcloud rates aren't offered for Trunkrs.
What happens when Trunkrs updates or breaks their API?
Trunkrs is a same-day delivery specialist with tight operational windows. Direct integrators have to refresh credentials when authentication updates and re-test cut-off-time logic when Trunkrs adjusts service hours.
When you ship Trunkrs through the Sendcloud REST API, the abstraction layer absorbs those changes. Sendcloud's engineering monitors Trunkrs's documentation and adjusts the carrier connector internally. Your Sendcloud request schema stays the same.
Can I use my own Trunkrs contract?
Yes, and you have to. Trunkrs requires a direct contract; Sendcloud rates aren't offered. Request one through the Trunkrs site if you don't have one.
In Sendcloud, go to Shipping > Carriers, find Trunkrs, and click Enable own contract. Add your contract under My Contracts with the Client ID and Secret from your Trunkrs account manager. A Lite, Growth, or Premium plan is required.
Which Trunkrs products are supported through the API?
Through Sendcloud, you can ship Trunkrs's same-day and next-day services:
Trunkrs Same Day Delivery: ordered in the morning, delivered between 5:00 PM and 10:00 PM the same day, Monday to FridayNext-day delivery for parcels created after the 10:00 AMS cut-off
Maximum parcel: 10 kg, 60x40x40 cm. The Sendcloud shipping-methods endpoint returns the up-to-date list of methods enabled on your account.
Which Trunkrs-specific features does the API expose?
Trunkrs-specific same-day features exposed through the integration:
Cut-off time at 10:00 AMS for same-day delivery: labels created after that auto-shift to next-day
Same-day delivery to the Netherlands (excluding Wadden islands), Flanders, and Brussels
Minimum 50 parcels per day for Flanders shipments without a direct carrier contract
Home delivery only: no service points or lockers
5:00 PM to 10:00 PM standard delivery window
How do I track Trunkrs parcels?
Trunkrs tracking surfaces same-day delivery events between 5:00 PM and 10:00 PM. Labels created after the 10:00 AMS cut-off auto-shift to next-day delivery, so the timing of tracking events depends on when the label was created relative to the cut-off.
All events normalise to Sendcloud's status taxonomy through GET https://panel.sendcloud.sc/api/v2/tracking/{tracking_number}, with the chronological history under statuses and each event mapped to parent_status. Subscribe to the parcel-status-changed webhook for push updates. Reference: Tracking parcels.
How do I create Trunkrs return labels?
Trunkrs returns follow the same same-day windows where the contract supports them: ordered in the morning, returned in the evening (5:00 PM-10:00 PM), Monday to Friday. Specific return method availability depends on contract setup.
All return labels are created through Sendcloud's standalone v3 Returns API (synchronous or asynchronous; async is recommended for higher throughput). No outgoing parcel lookup or JWT tokens are required. Reference: Returns API overview.
How does Sendcloud's multi-carrier API compare to connecting carriers individually?
The Sendcloud REST API gives you access to 170+ carriers, including Trunkrs, through one credential set, one schema, one webhook stream, and one error model. Connecting carriers individually means handling separate authentication, payload formats, and tracking systems for each, and redoing the work every time a carrier ships breaking changes upstream.
With Sendcloud, you ship Trunkrs alongside PostNL, Bpost, DHL, and DPD, or any other carrier in your account using the same code. Route shipments between carriers based on rules (weight, destination, service level, cost) without writing carrier-specific routing logic. Fall back to alternative carriers automatically if Trunkrs's upstream system has issues.
Adding a new carrier later means adding it to your Sendcloud account, not building a new integration.
Questions & answers
Why integrate the Trunkrs API through Sendcloud instead of directly?
Direct Trunkrs integration means managing the same-day shipping cut-off (10:00 AMS), Trunkrs Client ID and Secret authentication, and minimum-volume requirements for Flanders shipments.
Through Sendcloud, you authenticate once with your Sendcloud API key and use a single REST schema for Trunkrs alongside every other carrier in your account. A direct Trunkrs contract is required either way; Sendcloud rates aren't offered for Trunkrs.
What happens when Trunkrs updates or breaks their API?
Trunkrs is a same-day delivery specialist with tight operational windows. Direct integrators have to refresh credentials when authentication updates and re-test cut-off-time logic when Trunkrs adjusts service hours.
When you ship Trunkrs through the Sendcloud REST API, the abstraction layer absorbs those changes. Sendcloud's engineering monitors Trunkrs's documentation and adjusts the carrier connector internally. Your Sendcloud request schema stays the same.
Can I use my own Trunkrs contract?
Yes, and you have to. Trunkrs requires a direct contract; Sendcloud rates aren't offered. Request one through the Trunkrs site if you don't have one.
In Sendcloud, go to Shipping > Carriers, find Trunkrs, and click Enable own contract. Add your contract under My Contracts with the Client ID and Secret from your Trunkrs account manager. A Lite, Growth, or Premium plan is required.
Which Trunkrs products are supported through the API?
Through Sendcloud, you can ship Trunkrs's same-day and next-day services:
Trunkrs Same Day Delivery: ordered in the morning, delivered between 5:00 PM and 10:00 PM the same day, Monday to FridayNext-day delivery for parcels created after the 10:00 AMS cut-off
Maximum parcel: 10 kg, 60x40x40 cm. The Sendcloud shipping-methods endpoint returns the up-to-date list of methods enabled on your account.
Which Trunkrs-specific features does the API expose?
Trunkrs-specific same-day features exposed through the integration:
Cut-off time at 10:00 AMS for same-day delivery: labels created after that auto-shift to next-day
Same-day delivery to the Netherlands (excluding Wadden islands), Flanders, and Brussels
Minimum 50 parcels per day for Flanders shipments without a direct carrier contract
Home delivery only: no service points or lockers
5:00 PM to 10:00 PM standard delivery window
How do I track Trunkrs parcels?
Trunkrs tracking surfaces same-day delivery events between 5:00 PM and 10:00 PM. Labels created after the 10:00 AMS cut-off auto-shift to next-day delivery, so the timing of tracking events depends on when the label was created relative to the cut-off.
All events normalise to Sendcloud's status taxonomy through GET https://panel.sendcloud.sc/api/v2/tracking/{tracking_number}, with the chronological history under statuses and each event mapped to parent_status. Subscribe to the parcel-status-changed webhook for push updates. Reference: Tracking parcels.
How do I create Trunkrs return labels?
Trunkrs returns follow the same same-day windows where the contract supports them: ordered in the morning, returned in the evening (5:00 PM-10:00 PM), Monday to Friday. Specific return method availability depends on contract setup.
All return labels are created through Sendcloud's standalone v3 Returns API (synchronous or asynchronous; async is recommended for higher throughput). No outgoing parcel lookup or JWT tokens are required. Reference: Returns API overview.
How does Sendcloud's multi-carrier API compare to connecting carriers individually?
The Sendcloud REST API gives you access to 170+ carriers, including Trunkrs, through one credential set, one schema, one webhook stream, and one error model. Connecting carriers individually means handling separate authentication, payload formats, and tracking systems for each, and redoing the work every time a carrier ships breaking changes upstream.
With Sendcloud, you ship Trunkrs alongside PostNL, Bpost, DHL, and DPD, or any other carrier in your account using the same code. Route shipments between carriers based on rules (weight, destination, service level, cost) without writing carrier-specific routing logic. Fall back to alternative carriers automatically if Trunkrs's upstream system has issues.
Adding a new carrier later means adding it to your Sendcloud account, not building a new integration.
One API for all your shipping needs
No setup fees
Same-day integration
Ship with Europe’s top carriers
One API for all your shipping needs
No setup fees
Same-day integration
Ship with Europe’s top carriers
One API for all your shipping needs
No setup fees
Same-day integration
Ship with Europe’s top carriers
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© 2026 Sendcloud. All Rights Reserved
Chamber of Commerce: 66572959
VAT number: NL856613897B01
Product
Integrations
Solutions
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© 2026 Sendcloud. All Rights Reserved
Chamber of Commerce: 66572959
VAT number: NL856613897B01
Product
© 2026 Sendcloud. All Rights Reserved
Chamber of Commerce: 66572959
VAT number: NL856613897B01