# OS Match & Cleanse API (withdrawn)

**Canonical:** https://apis.io/apis/ordnance-survey/os-match-and-cleanse-api/  
**Provider:** Ordnance Survey — https://apis.io/providers/ordnance-survey/  
**Base URL:** https://api.os.uk/search/match/v1  
**Documentation:** https://docs.os.uk/os-apis/accessing-os-apis/os-match-and-cleanse-api

OS Match & Cleanse API (withdrawn) is one of 25 APIs that [Ordnance Survey](https://apis.io/providers/ordnance-survey/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Addressing, Data Quality, and Matching. The published artifact set on APIs.io includes API documentation and an API reference.

Matched and cleansed supplied address strings against OS authoritative addressing data, returning a matched AddressBase record and confidence score. WITHDRAWN: end of life 31 March 2026, announced 24 February 2025. The API has been removed from existing API projects and requests now fail. OS recommends the OS Places API FIND endpoint, or an OS Partner bulk address-matching solution, as the migration path.

## Machine-readable artifacts (4)

- **Documentation** — https://docs.os.uk/os-apis/accessing-os-apis/os-match-and-cleanse-api
- **APIReference** — https://docs.os.uk/os-apis/accessing-os-apis/os-match-and-cleanse-api/technical-specification
- **Deprecation** — https://docs.os.uk/os-apis/accessing-os-apis/os-match-and-cleanse-api/end-of-life-information
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/ordnance-survey/refs/heads/main/apis.yml

## Other Ordnance Survey APIs (12)

- [OS OAuth 2 API](https://apis.io/apis/ordnance-survey/os-oauth2-api/)
- [Ordnance Survey Bounding box API](https://apis.io/apis/ordnance-survey/ordnance-survey-bounding-box-api/)
- [Ordnance Survey Collections API](https://apis.io/apis/ordnance-survey/ordnance-survey-collections-api/)
- [Ordnance Survey Data Collections API](https://apis.io/apis/ordnance-survey/ordnance-survey-data-collections-api/)
- [Ordnance Survey Data Packages API](https://apis.io/apis/ordnance-survey/ordnance-survey-data-packages-api/)
- [Ordnance Survey Features API](https://apis.io/apis/ordnance-survey/ordnance-survey-features-api/)
- [Ordnance Survey Find API](https://apis.io/apis/ordnance-survey/ordnance-survey-find-api/)
- [Ordnance Survey Get Capabilities API](https://apis.io/apis/ordnance-survey/ordnance-survey-getcapabilities-api/)
- [Ordnance Survey Landing Page API](https://apis.io/apis/ordnance-survey/ordnance-survey-landing-page-api/)
- [Ordnance Survey Nearest API](https://apis.io/apis/ordnance-survey/ordnance-survey-nearest-api/)
- [Ordnance Survey Open Data API](https://apis.io/apis/ordnance-survey/ordnance-survey-opendata-api/)
- [Ordnance Survey OS OpenData Users API](https://apis.io/apis/ordnance-survey/ordnance-survey-os-opendata-users-api/)

## Tags

Addressing, Data Quality, Matching

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/ordnance-survey/os-match-and-cleanse-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/ordnance-survey/.