Create Batch Add to List Job
Schedule an asynchronous job that adds members to a single list. The target list is identified by data.attributes.list_id in the request body; the list's list_type determines whether company or contact references are accepted. Up to 100 items may be supplied per request. To remove members, use POST /v1/lists/batch-remove-from-list-jobs — adding and removing are separate jobs.
Returns 202 Accepted with a job handle. Poll GET /v1/lists/batch-add-to-list-jobs/{job_id} to observe progress and the per-item outcome.
Credit Note: Adding members to a list does not consume credits.
:::info Requires the lists:write OAuth2 scope. :::
Query parameters
The Leadfeeder Account ID. The Account ID can be retrieved using the List Accounts endpoint.
Request body
Example request
{
"data": {
"type": "batch_add_to_list_job",
"attributes": {
"list_id": "company_123",
"items": [
{
"type": "company",
"id": "159001425"
},
{
"type": "company",
"id": "159001426"
}
]
}
}
}Response
Batch add-to-list job accepted and enqueued
Example response
{
"data": {
"type": "batch_add_to_list_job",
"id": "job_550e8400-e29b-41d4-a716-446655440000",
"attributes": {
"status": "running",
"configuration": {
"list_id": "company_123",
"items": [
{
"type": "company",
"id": "159001425"
}
]
},
"results": [
{
"id": "159001425",
"type": "company",
"status": "added"
}
],
"summary": {
"added": 2,
"list_size_before": 51,
"list_size_after": 53
},
"errors": [
{
"code": "job_failed",
"title": "External contact data provider timeout"
}
],
"created_at": "2026-05-13T12:00:00Z",
"completed_at": "2026-05-13T12:00:18Z"
}
},
"meta": {
"request_id": "cf054205-dd8c-4473-8689-07c30fe0789f"
}
}