> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hookmyapp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Reply to a comment

> Post a threaded reply under a comment.

Posts a public threaded reply. You cannot reply to a hidden comment — unhide it first.

To reply privately as a DM instead, use [Send a message](/instagram/api/messages/send-message) with `recipient: { "comment_id": "..." }` — limits in the [Comments guide](/instagram/comments#reply-privately).

## Authentication

Use the `hmat_` channel token from `GET /meta/channels/{id}/token` or `hookmyapp channels env <channel>`. Do not use an `hmok_` API key for this call.

```bash theme={null}
Authorization: Bearer hmat_...
```

## Path parameters

<ParamField path="commentId" type="string" required>
  The comment to reply to.
</ParamField>

## Request body

<ParamField body="message" type="string" required>
  The reply text.
</ParamField>

## Example

```bash theme={null}
curl -X POST "https://gateway.hookmyapp.com/meta/v25.0/{COMMENT_ID}/replies" \
  -H "Authorization: Bearer hmat_..." \
  -H "Content-Type: application/json" \
  -d '{ "message": "Thanks!" }'
```

## Successful response

```json theme={null}
{ "id": "17910000000000000" }
```