coss.comdocs

List received SMS

GET
/v1/sms/received

Messages sent to the organization's numbers whose replies go to the API key's environment, newest first.

Authorization

bearerAuth
headerAuthorizationBearer <token>

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

Query Parameters

from?string

Only messages from this number.

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

Only messages to this number of yours.

Match^\+[1-9]\d{6,14}$
created_after?string
Formatdate-time
created_before?string
Formatdate-time
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 received messages.

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.received.list();
{  "object": "list",  "data": [],  "has_more": false}