---
title: "Reference data for the sequence APIs."
method: GET
path: "/api/external/sequences/reference-data"
tags: ["Sequence APIs"]
---

# Reference data for the sequence APIs.

`GET /api/external/sequences/reference-data`

<br/>Returns the lookup lists needed to build requests to the other sequence<br/>endpoints, in a single call:<br/><br/>  - `status`: the statuses a sequence can be in. These `id` values are what<br/>    the `status` filter of `/api/external/sequences/list` expects. The<br/>    internal "Deleted" status is intentionally excluded.<br/>  - `type`: sequence targets (Candidate or Contact). These `id` values are<br/>    what the `sequence_type_ids` filter of `/api/external/sequences/list`<br/>    expects, and they determine which prospects may be added to a sequence.<br/>

## Headers

- `RF-Api-Key` string, required

## Response `200`

Sequence reference data (statuses and types)

- unknown

## Changes

- **2026-08-13** `febc104d89ff` — 1 breaking
  - the `header` request parameter `RF-Api-Key` became required

[Change history](https://skmtc.dev/recruiterflow/apis/recruiterflow-api-documentation/changes/api/external/sequences/reference-data/get.md)

---

[API](https://skmtc.dev/recruiterflow/apis/recruiterflow-api-documentation.md) · [All operations](https://skmtc.dev/recruiterflow/apis/recruiterflow-api-documentation/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/recruiterflow/recruiterflow-api-documentation/revisions/febc104d89ff/schema)