Numbers for receiving SMS — from your own software

https://relysms.pro/api/v1

POST /relysms-hook HTTP/1.1
Content-Type: application/json
X-RelySMS-Event: order.code_received
X-RelySMS-Delivery: cm…
X-RelySMS-Signature: t=1793095272,v1=5f2b…

{
  "id": "cm…",
  "event": "order.code_received",
  "createdAt": "2026-10-27T10:01:12.000Z",
  "order": { "id": 1042, "status": "received", "codes": [{ "code": "48213", … }], … }
}

import hashlib, hmac, time

def verify(secret: str, body: bytes, header: str, tolerance=300) -> bool:
    parts = dict(p.split("=", 1) for p in header.split(","))
    t, sig = parts.get("t", ""), parts.get("v1", "")
    if not t.isdigit() or abs(time.time() - int(t)) > tolerance:
        return False
    expected = hmac.new(secret.encode(), f"{t}.".encode() + body, hashlib.sha256).hexdigest()
    return hmac.compare_digest(expected, sig)

import { createHmac, timingSafeEqual } from "node:crypto";

export function verify(secret, rawBody, header, tolerance = 300) {
  const parts = Object.fromEntries(header.split(",").map((p) => p.split("=", 2)));
  const t = Number(parts.t);
  if (!Number.isInteger(t) || Math.abs(Date.now() / 1000 - t) > tolerance) return false;
  const expected = createHmac("sha256", secret).update(`${t}.${rawBody}`).digest("hex");
  return expected.length === parts.v1?.length && timingSafeEqual(Buffer.from(expected), Buffer.from(parts.v1));
}

{ "error": { "code": "price_above_max", "message": "The price is above maxPrice.", "price": 0.59 } }

import time, uuid, requests

BASE = "https://relysms.pro/api/v1"
S = requests.Session()
S.headers["Authorization"] = "Bearer rs_your_key"

r = S.post(f"{BASE}/orders",
           json={"service": "telegram", "country": "US", "maxPrice": 0.8},
           headers={"Idempotency-Key": str(uuid.uuid4())}, timeout=30)
if r.status_code != 201:
    raise SystemExit(r.json()["error"])   # no_numbers, below_api_minimum, …
order = r.json()["order"]
print("number:", order["phone"])

while order["status"] == "waiting":       # up to 20 minutes
    time.sleep(10)
    order = S.get(f"{BASE}/orders/{order['id']}", timeout=30).json()["order"]

if order["status"] == "received":
    print("code:", order["codes"][-1]["code"])
    S.post(f"{BASE}/orders/{order['id']}/finish", timeout=30)
# "expired" or "cancelled": the money is back on the balance

const BASE = "https://relysms.pro/api/v1";
const headers = { Authorization: "Bearer rs_your_key", "Content-Type": "application/json" };

const res = await fetch(`${BASE}/orders`, {
  method: "POST",
  headers: { ...headers, "Idempotency-Key": crypto.randomUUID() },
  body: JSON.stringify({ service: "telegram", country: "US", maxPrice: 0.8 }),
});
if (res.status !== 201) throw new Error((await res.json()).error.code);
let { order } = await res.json();
console.log("number:", order.phone);

while (order.status === "waiting") {
  await new Promise((r) => setTimeout(r, 10_000));
  ({ order } = await (await fetch(`${BASE}/orders/${order.id}`, { headers })).json());
}
if (order.status === "received") {
  console.log("code:", order.codes.at(-1).code);
  await fetch(`${BASE}/orders/${order.id}/finish`, { method: "POST", headers });
}

KEY=rs_your_key
BASE=https://relysms.pro/stubs/handler_api.php

curl "$BASE?api_key=$KEY&action=getBalance"
curl "$BASE?api_key=$KEY&action=getNumber&service=tg&country=187&maxPrice=0.80"
# → ACCESS_NUMBER:1042:15550001111
curl "$BASE?api_key=$KEY&action=getStatus&id=1042"
# → STATUS_WAIT_CODE … then STATUS_OK:48213
curl "$BASE?api_key=$KEY&action=setStatus&id=1042&status=6"

import time, requests

BASE = "https://relysms.pro/stubs/handler_api.php"
KEY = "rs_your_key"

def call(action, **params):
    r = requests.get(BASE, params={"api_key": KEY, "action": action, **params}, timeout=30)
    r.raise_for_status()
    return r.text

answer = call("getNumber", service="tg", country="187", maxPrice="0.80")
if not answer.startswith("ACCESS_NUMBER"):
    raise SystemExit(answer)          # NO_NUMBERS, NO_BALANCE, …
_, order_id, phone = answer.split(":")
print("number:", phone)

for _ in range(120):                  # up to 20 minutes, every 10 s
    status = call("getStatus", id=order_id)
    if status.startswith("STATUS_OK:"):
        print("code:", status.split(":", 1)[1])
        call("setStatus", id=order_id, status=6)
        break
    if status == "STATUS_CANCEL":
        break                         # refunded automatically
    time.sleep(10)

const BASE = "https://relysms.pro/stubs/handler_api.php";
const KEY = "rs_your_key";

async function call(action, params = {}) {
  const url = new URL(BASE);
  url.search = new URLSearchParams({ api_key: KEY, action, ...params });
  const res = await fetch(url);
  return res.text();
}

const answer = await call("getNumber", { service: "tg", country: "187", maxPrice: "0.80" });
if (!answer.startsWith("ACCESS_NUMBER")) throw new Error(answer);
const [, id, phone] = answer.split(":");
console.log("number:", phone);

for (let i = 0; i < 120; i++) {
  const status = await call("getStatus", { id });
  if (status.startsWith("STATUS_OK:")) {
    console.log("code:", status.slice("STATUS_OK:".length));
    await call("setStatus", { id, status: "6" });
    break;
  }
  if (status === "STATUS_CANCEL") break; // refunded automatically
  await new Promise((r) => setTimeout(r, 10_000));
}

Read https://relysms.pro/developers.md and connect RelySMS to my script.