# Companies House Streaming API

**Canonical:** https://apis.io/apis/companies-house/companies-house-streaming-api/  
**Provider:** Companies House — https://apis.io/providers/companies-house/  
**Base URL:** https://stream.companieshouse.gov.uk  
**Documentation:** https://developer-specs.company-information.service.gov.uk/streaming-api/guides/overview

Companies House Streaming API is one of 9 APIs that [Companies House](https://apis.io/providers/companies-house/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Streaming, Real-Time, Companies, Officers, and Filing History. The published artifact set on APIs.io includes API documentation.

The Companies House Streaming API delivers real-time changes to Companies House data via long-running HTTP connections. It streams updates across nine data categories including company information, filing history, insolvency, charges, officers, persons with significant control, disqualified officers, exemptions, and PSC statements. Each account is limited to two concurrent streaming connections and requires an API key for authentication.

## Machine-readable artifacts (2)

- **Documentation** — https://developer-specs.company-information.service.gov.uk/streaming-api/guides/overview
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/companies-house/refs/heads/main/apis.yml

## Other Companies House APIs (8)

- [Companies House charges API](https://apis.io/apis/companies-house/companies-house-charges-api/)
- [Companies House filingHistory API](https://apis.io/apis/companies-house/companies-house-filinghistory-api/)
- [Companies House insolvency API](https://apis.io/apis/companies-house/companies-house-insolvency-api/)
- [Companies House officerDisqualifications API](https://apis.io/apis/companies-house/companies-house-officerdisqualifications-api/)
- [Companies House officers API](https://apis.io/apis/companies-house/companies-house-officers-api/)
- [Companies House personsWithSignificantControl API](https://apis.io/apis/companies-house/companies-house-personswithsignificantcontrol-api/)
- [Companies House registeredOfficeAddress API](https://apis.io/apis/companies-house/companies-house-registeredofficeaddress-api/)
- [Companies House search API](https://apis.io/apis/companies-house/companies-house-search-api/)

## Tags

Streaming, Real-Time, Companies, Officers, Filing History

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