Reference
API reference
REST endpoints for programmatic control of conversations, customers and broadcasts.
By ReplyFront Team · Last updated June 19, 2026
Beta
Public REST API is in beta on Pro+. Endpoints below are stable; please email us at [email protected] for an API key.
Authentication
Send your secret key as a Bearer token. Never expose secret keys in browser code.
HTTP
Authorization: Bearer sk_live_yourSecretKeySend a message
HTTP
POST https://app.replyfront.com/api/v1/messages
{
"conversationId": "conv_abc123",
"role": "agent",
"content": "Hi! Your refund is processed."
}Identify a customer
HTTP
POST https://app.replyfront.com/api/v1/customers/identify
{
"channel": "web",
"externalId": "shop-customer-1042",
"email": "[email protected]",
"tags": ["vip"]
}Schedule a broadcast
HTTP
POST https://app.replyfront.com/api/v1/broadcasts
{
"channelKind": "web",
"subject": "Black Friday teaser",
"body": "30% off ends tonight — shop now: https://...",
"audience": { "tagsAny": ["vip", "lapsed"] },
"sendAt": "2026-04-25T12:00:00Z"
}