End of Life Information
Overview
The OS Match & Cleanse API will be officially withdrawn on 31 March 2026. This page provides details on the timeline, impact, and available alternatives for affected customers.
Key dates
Full End of Life date: 31 March 2026
Why is this happening?
We continuously evaluate our APIs to ensure they align with our strategic goals and meet the evolving needs of our customers. After evaluating the OS Match & Cleanse API, we've made the decision to withdraw it. Here's why:
Evolving customer needs: Feedback has shown that the OS Match & Cleanse API does not fully address key use cases. Many customers are looking for a bulk address-matching solution to validate and link existing address data to a Unique Property Reference Number (UPRN). Currently, the API does not support bulk processing and has rate limits that restrict processing large batches of addresses, meaning it's not the best fit for those use cases. Additionally, various bulk address-matching solutions are supported throughout the OS Partner community.
Low usage and adoption: Over time, the usage of the OS Match & Cleanse API has been relatively low, making continued support and maintenance no longer sustainable.
Similar functionality is available: The OS Places API provides functionality comparable to the OS Match & Cleanse API through the FIND endpoint.
OS product consolidation: The withdrawal is part of a broader initiative to streamline and consolidate our product offering, ensuring our products are sustainable and better aligned with current and future customer needs.
We understand this change will impact some customers, and we are committed to providing guidance and support to ensure a smooth transition.
Impact on customers
Customers can continue to use the OS Match & Cleanse API up to 31 March 2026.
After the End of Life date, the OS Match & Cleanse API will be removed from all existing API projects and will no longer be accessible.
After the End of Life date, requests to the OS Match & Cleanse API will fail.
Migration options
OS Partner solution
OS Places API
Further information
Further support documentation will be shared soon to answer any queries you might have and to support migration.
Be sure to test and validate any new implementations to ensure continued functionality in your application.
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