# The OS Match & Cleanse API stops working

Calls to /search/match/v1/* on OS Data Hub APIs stopped working on March 31, 2026.

## What to use instead

Switch to the OS Places API find endpoint. The OS Places API matches single addresses only, so bulk matching requires an OS Partner solution.

OS Places API matches single addresses only; bulk matching means an OS Partner solution.

- API: OS Data Hub APIs (api.os.uk)
- Kind: Removal
- Takes effect: March 31, 2026
- Calls after that day: fail
- Calls it hits: `/search/match/v1/*`
- Source: [Announcement](https://docs.os.uk/os-apis/accessing-os-apis/os-match-and-cleanse-api/end-of-life-information)
- Verified: November 6, 2026, against OS Data Hub APIs's own pages
- Page: https://www.okapi.bot/providers/os-data-hub-apis/breaking-changes/the-os-match-cleanse-api-stops-working/

## OS Data Hub APIs's words

> The OS Match & Cleanse API was officially withdrawn on 31 March 2026.

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent