---
title: "Create a list"
method: POST
path: "/v1/lists"
---

# Create a list

`POST /v1/lists`

Creates a new list. The `$name` and `$objectType` fields are required.

Supports idempotency via the `Idempotency-Key` header.

**[Required scope](/using-the-api/scopes/):** `lists:create`

**[Rate limit category](/using-the-api/rate-limits/):** Write

## Headers

- `Lightfield-Version` '2026-03-01', required

## Request body

- object
  - `fields` object, required — Field values for the new list. Required: `$name` (string) and `$objectType`.
    - `$name` string, required — Display name of the list.
    - `$description` string, nullable — Optional description of what this list is for.
    - `$kind` 'target', nullable — Product-level list purpose. Normally omit to create a regular list; reserve `target` for the single account-prioritization (APG) demand list per org, and only for account/contact lists.
    - `$objectType` string, required — The type of entities this list contains. Use `$account`, `$contact`, or `$opportunity` (the `$` prefix identifies system types). Bare slugs without the prefix (e.g. `account`) are accepted for backward compatibility but are deprecated.
  - `relationships` object — Relationships to set on the new list.
    - `$accounts` union — Account ID(s) to add as initial members. List `$objectType` must be `account`.
      - string
      - string[]
    - `$contacts` union — Contact ID(s) to add as initial members. List `$objectType` must be `contact`.
      - string
      - string[]
    - `$opportunities` union — Opportunity ID(s) to add as initial members. List `$objectType` must be `opportunity`.
      - string
      - string[]

## Response `200`

OK

- ListCreateResponse
  - `id` string, required — Unique identifier for the list.
  - `createdAt` string, required — ISO 8601 timestamp of when the list was created.
  - `httpLink` string, nullable, required — URL to view the list in the Lightfield web app, or null.
  - `fields` object, required — Map of field names to their typed values. System fields are prefixed with `$` (e.g. `$name`, `$objectType`).

## Other responses

- `400` — 400
- `401` — 401
- `403` — 403
- `404` — 404
- `409` — 409
- `415` — 415
- `422` — 422
- `429` — 429
- `500` — 500
- `501` — 501
- `503` — 503
- `504` — 504

---

[API](https://skmtc.net/lightfld/apis/api-reference.md) · [All operations](https://skmtc.net/lightfld/apis/api-reference/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/lightfld/api-reference/versions/93b6c5de5463/schema)