---
title: "Engagement summary for a contact"
method: GET
path: "/contacts/{id}/engagement"
tags: ["Contacts"]
---

# Engagement summary for a contact

`GET /contacts/{id}/engagement`

## Request

- Base URL: `https://api.poststack.dev`
- URL: `https://api.poststack.dev/contacts/{id}/engagement`
- Auth: one of:
  - HTTP bearer
  - OAuth 2
    - Authorization code: `https://poststack.dev/oauth/authorize`
    - Token URL: `https://poststack.dev/oauth/token`
- TypeScript: <https://skmtc.dev/poststack/apis/poststack-api/docs/contacts/:id/engagement/get.ts> (a function with typed inputs; its response is checked against the schema)

## Path parameters

- `id` string, required

## Response `200`

Summary.

- object
  - `segment` 'active' | 'at_risk' | 'dormant', nullable
  - `last_engaged_at` string, date-time, nullable
  - `engagement_calculated_at` string, date-time, nullable
  - `lifetime_sent` integer
  - `lifetime_delivered` integer
  - `lifetime_opened` integer
  - `lifetime_clicked` integer
  - `open_rate` number
  - `click_rate` number
  - `last_open` string, date-time, nullable
  - `last_click` string, date-time, nullable
  - `top_tags` object[]
    - `tag` string
    - `count` integer

## Other responses

- `400`: Validation failed — `error` names each offending field (`field: message`).
- `401`: Missing, malformed or unknown credentials (`WWW-Authenticate: Bearer …` is set).
- `403`: The credential lacks the `contacts:read` scope (body `{ error: "insufficient_scope", required, missing }`), or the team is suspended.
- `404`: No such resource on this team.

## Changes

- **2026-09-30** `4dc1e20989c8`: 12 warning
  - added the new `daily_limit_exceeded` enum value to the `anyOf[#/components/schemas/Error]/code` response property for the response status `403`
  - added the new `daily_limit_exceeded` enum value to the `code` response property for the response status `400`
  - added the new `daily_limit_exceeded` enum value to the `code` response property for the response status `401`
  - added the new `daily_limit_exceeded` enum value to the `code` response property for the response status `404`
  - …8 more
- **2026-09-29** `ef5b22b98333`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/poststack/apis/poststack-api/changes/contacts/:id/engagement/get.md)

---

[API](https://skmtc.dev/poststack/apis/poststack-api.md) - [All operations](https://skmtc.dev/poststack/apis/poststack-api/llms.txt) - [OpenAPI document](https://skmtc.dev/poststack/apis/poststack-api/revisions/0d3971e3a670?raw)