coss.comdocs

List suppressed numbers

GET
/v1/sms/suppressions

The SMS suppression list of the API key's environment, newest first: opt-outs, invalid numbers and numbers you added.

Authorization

bearerAuth
headerAuthorizationBearer <token>

A secret API key from the dashboard: coss_live_… for production environments, coss_test_… for sandbox environments.

Query Parameters

phone_number?string

Only this number's entry.

Match^\+[1-9]\d{6,14}$
limit?integer

1-100, default 20.

Range1 <= value <= 100
after?string

Cursor: the id of the last item of the previous page.

Lengthlength <= 64

Header Parameters

Coss-Version?"2026-10-10"

The API version (a date) to use for this request. Defaults to your organization's version, pinned to the latest one when it first used the API and upgraded from the dashboard. The SDK always sends the version it was built for.

Value in"2026-10-10"

Response Body

A page of entries.

application/json
  1. response
object*"list"
Value in"list"
data*array<>
has_more*boolean
import { Coss } from "coss";const coss = new Coss({  apiKey: process.env.COSS_API_KEY,  baseUrl: "https://api.coss.com",});const { data, error } = await coss.sms.suppressions.list();
{  "object": "list",  "data": [],  "has_more": false}