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InboxSend or schedule reply
Inbox

Send or schedule reply

Sends a reply immediately or schedules it for later. Omit scheduledFor for immediate send; pass an ISO 8601 date in the future to schedule. Use the attachments array with objects from the attachment upload endpoint. If mailboxId is not provided, the conversation's assigned mailbox or the original sending mailbox is used.

curl -X POST "https://api.sendkit.ai/v1/inbox/example_string/reply" \
  -H "Content-Type: application/json" \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -d '{
  "body": "Thanks for your interest! Let's schedule a call this week."
}'
{
  "success": true,
  "data": {
    "id": "664a1b2c3d4e5f6a7b8c9d10",
    "status": "pending",
    "scheduledFor": "2024-06-01T15:00:00.000Z",
    "isScheduled": false
  }
}
POST
/v1/inbox/{id}/reply
POST
API Key (header: X-Api-Key)
X-Api-Keystring
Required

Platform API key (sk_user_...) or Workspace API key (sk_...)

Platform API key (sk_user_...) or Workspace API key (sk_...)
Bearer Token
Bearer Tokenstring
Required

API key as Bearer token

API key as Bearer token
Content-Typestring
Required

The media type of the request body

Options: application/json
bodystring
Required

Reply body content (required)

Min length: 1
ccarray

CC recipients

bccarray

BCC recipients

scheduledForstring

Schedule reply for this time (ISO 8601). Must be in the future. Omit for immediate send.

Format: date-time
mailboxIdstring

Mailbox to send from. Falls back to conversation's assigned mailbox.

attachmentsarray

Attachments from the upload endpoint

Request Preview
Response

Response will appear here after sending the request

Authentication

header
X-Api-Keystring
Required

API Key for authentication. Platform API key (sk_user_...) or Workspace API key (sk_...)

header
Authorizationstring
Required

Bearer token. API key as Bearer token

Path Parameters

idstring
Required

Resource ID

Body

application/json
bodystring
Required

Reply body content (required)

ccarray

CC recipients

bccarray

BCC recipients

scheduledForstring

Schedule reply for this time (ISO 8601). Must be in the future. Omit for immediate send.

mailboxIdstring

Mailbox to send from. Falls back to conversation's assigned mailbox.

attachmentsarray

Attachments from the upload endpoint

Responses