---
title: "Append datasets to domains"
method: POST
path: "/append"
---

# Append datasets to domains

`POST /append`

Append firmographic, contact, vendor, or other datasets to a list of domains from a CSV/Excel file, a saved query (query_id), or both.

## Query parameters

- `domain_column` string — Column name containing domains (auto-detected if not provided).
- `csv` boolean — Return results as CSV instead of JSON.
- `dataset` string[], nullable — Datasets to append.
- `query_id` string[], nullable — Append domains from these saved queries, unioned with any file-derived domains.

## Response `200`

Successful Response

- AppendResultItem[]

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/discolike/apis/discolike-api.md) · [All operations](https://skmtc.net/discolike/apis/discolike-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/discolike/discolike-api/versions/3248fc62024c/schema)