Error
A valid request URL is required to generate request examples{
"success": true,
"data": {
"phoneNumber": "+14155559999",
"reason": "Asked us on a call to stop texting",
"source": "manual",
"createdAt": "2026-07-13T11:05:00.000Z"
}
}{
"type": "about:blank",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"code": "<string>",
"errors": [
{
"field": "<string>",
"message": "<string>"
}
]
}{
"type": "about:blank",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"code": "<string>",
"errors": [
{
"field": "<string>",
"message": "<string>"
}
]
}SMS
Manually record an opt-out (do-not-text)
Records an opt-out that arrived outside SMS (a phone call, an email) so the business stops texting that number. Opt-outs must be honored regardless of how they arrive. Returns 200 (not 201) — an opt-out is an idempotent record, not a created resource.
POST
/
sms
/
suppressions
Error
A valid request URL is required to generate request examples{
"success": true,
"data": {
"phoneNumber": "+14155559999",
"reason": "Asked us on a call to stop texting",
"source": "manual",
"createdAt": "2026-07-13T11:05:00.000Z"
}
}{
"type": "about:blank",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"code": "<string>",
"errors": [
{
"field": "<string>",
"message": "<string>"
}
]
}{
"type": "about:blank",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"code": "<string>",
"errors": [
{
"field": "<string>",
"message": "<string>"
}
]
}Authorizations
Flowyte secret API key (Authorization: Bearer flowyte_sk_live_…). Scope-gated; is scoped to your organization — a key can never reach another tenant. The listed scopes in each operation's apiKey requirement are the scopes that key must hold. The tokenUrl is nominal: keys are minted in the dashboard.
FlowClient Credentials
- Token URL
- /api/v1/api-keys
Scopes1
sms:write
Save/submit the 10DLC registration, toggle numbers for SMS, record or revoke a contact's SMS consent, and upload pictures and short videos to send by text.