# HSR Early Termination Notices API

**Canonical:** https://apis.io/apis/federal-trade-commission/hsr-early-termination-notices/  
**Provider:** Federal Trade Commission — https://apis.io/providers/federal-trade-commission/  
**Base URL:** https://api.ftc.gov/v0  
**Documentation:** https://www.ftc.gov/developer/api/v0/endpoints/hsr-early-termination-notices

HSR Early Termination Notices API is one of 6 APIs that [Federal Trade Commission](https://apis.io/providers/federal-trade-commission/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Antitrust, Mergers, Federal-Government, and Open Data. The published artifact set on APIs.io includes an API reference and API documentation.

Read-only REST endpoint returning Hart-Scott-Rodino premerger notifications for which early termination of the waiting period was granted, filterable by title keyword, transaction number and transaction date. Responses declare JSON:API 1.0. The early termination programme was suspended in February 2021; the endpoint serves the historical record. Requires a free api.data.gov key.

## Machine-readable artifacts (3)

- **APIReference** — https://www.ftc.gov/developer/api/v0/endpoints/hsr-early-termination-notices
- **Documentation** — https://github.com/FederalTradeCommission/ftc-api-docs/blob/master/docs/endpoint-hsr-early-termination-notices.md
- **About** — https://www.ftc.gov/enforcement/competition-matters/2018/06/ftc-launches-first-web-api-make-early-terminations-more-accessible

## Other Federal Trade Commission APIs (5)

- [FTC Developer Portal](https://apis.io/apis/federal-trade-commission/developer-portal/)
- [Do Not Call (DNC) Reported Calls Data API](https://apis.io/apis/federal-trade-commission/dnc-complaints/)
- [National Do Not Call Registry](https://apis.io/apis/federal-trade-commission/do-not-call-registry/)
- [Consumer Sentinel Network](https://apis.io/apis/federal-trade-commission/consumer-sentinel/)
- [HSR Premerger Notification](https://apis.io/apis/federal-trade-commission/hsr-premerger/)

## Tags

Antitrust, Mergers, Federal-Government, Open Data

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/federal-trade-commission/hsr-early-termination-notices/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/federal-trade-commission/.