The easiest way to integrate with the Ontime API
Add the Ontime API to your WMS, ERP, or e-commerce backend through one Sendcloud integration. Ship same-day and pre-10:00 Iberian express alongside SEUR, MRW, and 170+ other carriers.
The easiest way to integrate with the Ontime API
Add the Ontime API to your WMS, ERP, or e-commerce backend through one Sendcloud integration. Ship same-day and pre-10:00 Iberian express alongside SEUR, MRW, and 170+ other carriers.
The easiest way to integrate with the Ontime API
Add the Ontime API to your WMS, ERP, or e-commerce backend through one Sendcloud integration. Ship same-day and pre-10:00 Iberian express alongside SEUR, MRW, 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?
GeoPost express carrier for Spain and Portugal
Ship under Sendcloud's negotiated PostNL rates from day one, or bring your own contract when you're ready.
Pre-10:00 and same-day delivery
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?
GeoPost express carrier for Spain and Portugal
Ship under Sendcloud's negotiated PostNL rates from day one, or bring your own contract when you're ready.
Pre-10:00 and same-day delivery
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?
GeoPost express carrier for Spain and Portugal
Ship under Sendcloud's negotiated PostNL rates from day one, or bring your own contract when you're ready.
Pre-10:00 and same-day delivery
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 Ontime API through Sendcloud instead of directly?
Direct Ontime integration means managing Client ID, Secret, and Agency authentication, plus per-product configuration for Ontime XS 10 (before 10:00), XS Express (before 12:00), XS (standard next-day), and XS Economy (2-day).
Through Sendcloud, you authenticate once with your Sendcloud API key and use a single REST schema for Ontime alongside every other carrier in your account. A direct Ontime contract is required either way; Sendcloud rates aren't offered for Ontime.
What happens when Ontime updates or breaks their API?
Ontime periodically updates time-specific service definitions and authentication. Direct integrators have to refresh credentials when changes affect authentication and re-test payloads when Ontime adjusts service tiers.
When you ship Ontime through the Sendcloud REST API, the abstraction layer absorbs those changes. Sendcloud's engineering monitors Ontime's documentation and adjusts the carrier connector internally. Your Sendcloud request schema stays the same.
Can I use my own Ontime contract?
Yes, and you have to. Ontime requires a direct contract; Sendcloud rates aren't offered.
In Sendcloud, go to Shipping > Carriers > My Contracts, click Add your own contract, find Ontime, and click Add Contract. Enter Client ID, Secret, and Agency from your Ontime account manager. A Lite, Growth, or Premium plan is required.
Which Ontime products are supported through the API?
Through Sendcloud, you can ship Ontime's full Iberian product line:
Ontime XS 10: next-day before 10:00 AMOntime XS Express: next-day before 12:00 PMOntime XS: standard next-day deliveryOntime XS Economy: 2-day delivery
All services support outbound and returns. Coverage: mainland Spain, Canary Islands, Balearic Islands, and Portugal. Maximum parcel: 30 kg with 300 cm combined L+W+H. Three delivery attempts on every service. See the Ontime shipping conditions Help Center article.
Which Ontime-specific features does the API expose?
Ontime-specific features exposed through the integration:
Time-specific delivery: XS 10 (before 10:00 AM), XS Express (before 12:00 PM)
3 delivery attempts on every service
Monday to Saturday delivery, excluding national and regional holidays
Proof of delivery with signature on every shipment
SMS and email notifications when enabled
Coverage to mainland Spain, Canary Islands, Balearic Islands, and Portugal
Same return services use the same outbound shipping methods
How do I track Ontime parcels?
Ontime tracking includes SMS and email notifications to recipients (when enabled), in addition to the webhook events flowing into Sendcloud. Three delivery attempts on every service mean tracking events span the full attempt cycle.
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 Ontime return labels?
Ontime returns use the same service codes as outbound shipments. Three delivery attempts and Monday-to-Saturday delivery apply to return collection too.
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 Ontime, 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 Ontime alongside Correos, SEUR, MRW, and NACEX, 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 Ontime'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 Ontime API through Sendcloud instead of directly?
Direct Ontime integration means managing Client ID, Secret, and Agency authentication, plus per-product configuration for Ontime XS 10 (before 10:00), XS Express (before 12:00), XS (standard next-day), and XS Economy (2-day).
Through Sendcloud, you authenticate once with your Sendcloud API key and use a single REST schema for Ontime alongside every other carrier in your account. A direct Ontime contract is required either way; Sendcloud rates aren't offered for Ontime.
What happens when Ontime updates or breaks their API?
Ontime periodically updates time-specific service definitions and authentication. Direct integrators have to refresh credentials when changes affect authentication and re-test payloads when Ontime adjusts service tiers.
When you ship Ontime through the Sendcloud REST API, the abstraction layer absorbs those changes. Sendcloud's engineering monitors Ontime's documentation and adjusts the carrier connector internally. Your Sendcloud request schema stays the same.
Can I use my own Ontime contract?
Yes, and you have to. Ontime requires a direct contract; Sendcloud rates aren't offered.
In Sendcloud, go to Shipping > Carriers > My Contracts, click Add your own contract, find Ontime, and click Add Contract. Enter Client ID, Secret, and Agency from your Ontime account manager. A Lite, Growth, or Premium plan is required.
Which Ontime products are supported through the API?
Through Sendcloud, you can ship Ontime's full Iberian product line:
Ontime XS 10: next-day before 10:00 AMOntime XS Express: next-day before 12:00 PMOntime XS: standard next-day deliveryOntime XS Economy: 2-day delivery
All services support outbound and returns. Coverage: mainland Spain, Canary Islands, Balearic Islands, and Portugal. Maximum parcel: 30 kg with 300 cm combined L+W+H. Three delivery attempts on every service. See the Ontime shipping conditions Help Center article.
Which Ontime-specific features does the API expose?
Ontime-specific features exposed through the integration:
Time-specific delivery: XS 10 (before 10:00 AM), XS Express (before 12:00 PM)
3 delivery attempts on every service
Monday to Saturday delivery, excluding national and regional holidays
Proof of delivery with signature on every shipment
SMS and email notifications when enabled
Coverage to mainland Spain, Canary Islands, Balearic Islands, and Portugal
Same return services use the same outbound shipping methods
How do I track Ontime parcels?
Ontime tracking includes SMS and email notifications to recipients (when enabled), in addition to the webhook events flowing into Sendcloud. Three delivery attempts on every service mean tracking events span the full attempt cycle.
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 Ontime return labels?
Ontime returns use the same service codes as outbound shipments. Three delivery attempts and Monday-to-Saturday delivery apply to return collection too.
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 Ontime, 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 Ontime alongside Correos, SEUR, MRW, and NACEX, 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 Ontime'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 Ontime API through Sendcloud instead of directly?
Direct Ontime integration means managing Client ID, Secret, and Agency authentication, plus per-product configuration for Ontime XS 10 (before 10:00), XS Express (before 12:00), XS (standard next-day), and XS Economy (2-day).
Through Sendcloud, you authenticate once with your Sendcloud API key and use a single REST schema for Ontime alongside every other carrier in your account. A direct Ontime contract is required either way; Sendcloud rates aren't offered for Ontime.
What happens when Ontime updates or breaks their API?
Ontime periodically updates time-specific service definitions and authentication. Direct integrators have to refresh credentials when changes affect authentication and re-test payloads when Ontime adjusts service tiers.
When you ship Ontime through the Sendcloud REST API, the abstraction layer absorbs those changes. Sendcloud's engineering monitors Ontime's documentation and adjusts the carrier connector internally. Your Sendcloud request schema stays the same.
Can I use my own Ontime contract?
Yes, and you have to. Ontime requires a direct contract; Sendcloud rates aren't offered.
In Sendcloud, go to Shipping > Carriers > My Contracts, click Add your own contract, find Ontime, and click Add Contract. Enter Client ID, Secret, and Agency from your Ontime account manager. A Lite, Growth, or Premium plan is required.
Which Ontime products are supported through the API?
Through Sendcloud, you can ship Ontime's full Iberian product line:
Ontime XS 10: next-day before 10:00 AMOntime XS Express: next-day before 12:00 PMOntime XS: standard next-day deliveryOntime XS Economy: 2-day delivery
All services support outbound and returns. Coverage: mainland Spain, Canary Islands, Balearic Islands, and Portugal. Maximum parcel: 30 kg with 300 cm combined L+W+H. Three delivery attempts on every service. See the Ontime shipping conditions Help Center article.
Which Ontime-specific features does the API expose?
Ontime-specific features exposed through the integration:
Time-specific delivery: XS 10 (before 10:00 AM), XS Express (before 12:00 PM)
3 delivery attempts on every service
Monday to Saturday delivery, excluding national and regional holidays
Proof of delivery with signature on every shipment
SMS and email notifications when enabled
Coverage to mainland Spain, Canary Islands, Balearic Islands, and Portugal
Same return services use the same outbound shipping methods
How do I track Ontime parcels?
Ontime tracking includes SMS and email notifications to recipients (when enabled), in addition to the webhook events flowing into Sendcloud. Three delivery attempts on every service mean tracking events span the full attempt cycle.
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 Ontime return labels?
Ontime returns use the same service codes as outbound shipments. Three delivery attempts and Monday-to-Saturday delivery apply to return collection too.
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 Ontime, 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 Ontime alongside Correos, SEUR, MRW, and NACEX, 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 Ontime'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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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