POST /sms/lines/{line}/read
Mark a whole line read
| Scope | messages:write |
| Role permission | Phone numbers — line must be one of theirs |
| Cost | Free |
Clears a line's unread state for you, without walking every thread.
Needs a USER credential. Read state is keyed on a user id; an API key
authenticates the account, not a person, so it has no inbox of its own to
clear and gets a 400. Authorize with OAuth for this one.
Path parameters
| Name | Type | Required | Example | Description |
|---|---|---|---|---|
line | string | yes | 12125550188 | One of your account's numbers. Digits. |
Request body
| Field | Type | Required | Description |
|---|---|---|---|
since | string (RFC 3339) | no | Only mark messages after this instant. Omit for everything. |
Everything:
{}
Only recent messages:
{
"since": "2026-08-01T00:00:00Z"
}
Responses
204
Applied.
Errors
| Status | Meaning |
|---|---|
400 | invalid_request — a missing or malformed field, an unknown enum value, or an unknown field in the body. Nothing was charged. |
401 | unauthenticated — no credential, or one that is invalid, revoked or expired. The WWW-Authenticate header names the scope the endpoint wanted. |
403 | Two different failures share this status, and the type tells them apart: |
500 | internal_error — something failed on our side. For a send, nothing was charged, guaranteed, which is what makes a retry safe. |
See Errors for the full catalog and what to do about each.
Example
curl -X POST 'https://api.account.telebroad.com/api/public/v1/sms/lines/12125550188/read' \
-H "Authorization: Bearer $TB_KEY" \
-H 'Content-Type: application/json' \
-d '{}'