---
title: "Get a segment"
method: GET
path: "/api/v1/segments/{slug}"
tags: ["Segments"]
---

# Get a segment

`GET /api/v1/segments/{slug}`

Get one segment by slug, with a live member count.

## Path parameters

- `slug` string, required — The segment slug, as returned by segments_list.

## Response `200`

Success

- object
  - `slug` string, required — Unique identifier within your organization.
  - `name` string, required
  - `description` string, nullable, required
  - `evaluationCadence` 'REACTIVE_ONLY' | 'HOURLY' | 'DAILY', required — How often the segment is re-evaluated. REACTIVE_ONLY segments only change when evaluated explicitly.
  - `memberCount` integer, required — Live count of currently active members.
  - `lastEvaluatedAt` string, nullable, required — ISO 8601 timestamp; null if the segment has never evaluated.
  - `createdAt` string, required — ISO 8601 timestamp.

## Other responses

- `400` — Validation failed or the request cannot proceed.
- `401` — Missing, malformed, or revoked API key.
- `404` — The resource does not exist in this organization.
- `409` — Conflicts with the current state (duplicates, wrong lifecycle state).
- `422` — The request is well-formed but semantically invalid.
- `429` — Rate limit exceeded — retry after `Retry-After`.
- `500` — Internal server error.
- `503` — Transient error — retry with a narrower request.

---

[API](https://skmtc.net/useboom/apis/boom-api.md) · [All operations](https://skmtc.net/useboom/apis/boom-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/useboom/boom-api/revisions/00f873e07076/schema)