---
title: "Add Contacts To List"
method: POST
path: "/lists/{list_id}/contacts"
tags: ["Lists"]
---

# Add Contacts To List

`POST /lists/{list_id}/contacts`

## Request

- Base URL: `https://be.graph8.com/api/v1`
- URL: `https://be.graph8.com/api/v1/lists/{list_id}/contacts`
- Auth: HTTP bearer

Add contacts to a list by their IDs.

``added`` is the number of membership rows really created. Ids that are not
live contacts in this org come back in ``not_found``; ids already on the
list in ``already_member`` (LI-01). A missing or deleted list is a 404.

## Path parameters

- `list_id` integer, required: List ID

## Headers

- `Authorization` string, nullable
- `X-Target-Org-Id` string, nullable

## Request body

- AddContactsToListRequest: Request body for adding contacts to a list.
  - `contact_ids` integer[], required: List of contact IDs to add
  - `conflict_resolution` 'add_all' | 'skip_all' | 'custom', nullable: Required on retry after a 409 CONFLICT_REVIEW_REQUIRED response: 'add_all' adds ready + every warned contact, 'skip_all' adds only ready contacts, 'custom' adds ready + the ids in include_warned_ids. Blocked contacts are always excluded regardless of this value.
  - `include_warned_ids` string[], nullable: With conflict_resolution='custom', the warned contact ids to also add.

## Response `201`

Successful Response

- ApiResponseDict
  - `data` object, required
  - `pagination` PaginationMeta
    - `page` integer, required: Current page number (1-indexed)
    - `limit` integer, required: Items per page
    - `total` integer, required: Total number of items
    - `has_next` boolean, required: Whether there are more pages
    - `next_cursor` string, nullable: Opaque cursor for the next page; null when there are no more items. Pass it back as the `cursor` query param to fetch the following page without computing page numbers.
    - `total_available` integer, nullable: Search endpoints only: how many records really match, when known. Can be larger than `total`, which is capped at the 10,000 results that can be paged. For company search this is a distinct-company estimate. Null when unknown; absent outside search.
    - `total_is_lower_bound` boolean, nullable: Search endpoints only: true when more records match than `total` shows (the result set is larger than the 10,000 results that can be paged). Absent outside search.
    - `notes` string[], nullable: Search endpoints only: plain-language notes about the result, e.g. that more records match than can be paged, or that a reversed `between` range was put in order.

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/graph8/apis/graph8-developer-api.md) · [All operations](https://skmtc.dev/graph8/apis/graph8-developer-api/llms.txt) · [OpenAPI document](https://skmtc.dev/graph8/apis/graph8-developer-api/revisions/2e7cfa0ca921?raw)