Dokumentasi Developer

Mulai Cepat

Buat API key, kirim request pertama, dan terima webhook dengan aman dalam empat langkah.

1. Buat API key

Buat integrasi di console akun dan terbitkan API key. Key lengkap hanya ditampilkan sekali, jadi simpan dengan aman di secret manager.

Akun → API & Webhooks — buat integrasi untuk workspace pribadi atau teamspace yang Anda miliki.
Pilih cakupan izin yang diperlukan: notes:read, transcripts:read, summaries:read, webhooks:manage.
Key berbentuk alt_live_{key_id}.{secret} dan hanya ditampilkan sekali. Simpan di secret manager.

Export key tersebut di shell Anda agar semua perintah di bawah bisa dijalankan apa adanya:

shell

export ALT_API_KEY="alt_live_...paste-your-key-here..."

2. Ambil catatan yang sudah ada

Kirim cursor yang dikembalikan API pada request berikutnya untuk menelusuri seluruh daftar. Setelah itu, ambil transkrip dan ringkasan setiap catatan.

curl

curl 'https://public-api.altalt.io/v1/notes?limit=100' \
  -H "Authorization: Bearer $ALT_API_KEY"

# Follow next_cursor until has_more is false
curl 'https://public-api.altalt.io/v1/notes?limit=100&cursor=NEXT_CURSOR' \
  -H "Authorization: Bearer $ALT_API_KEY"

# Fetch content per note (scopes: transcripts:read / summaries:read)
curl 'https://public-api.altalt.io/v1/notes/NOTE_ID/transcript' \
  -H "Authorization: Bearer $ALT_API_KEY"
curl 'https://public-api.altalt.io/v1/notes/NOTE_ID/summary' \
  -H "Authorization: Bearer $ALT_API_KEY"

Untuk sinkronisasi inkremental setelahnya, lakukan polling dengan ?updated_after=<last sync time> atau andalkan webhook.

3. Daftarkan endpoint webhook

Daftarkan endpoint HTTPS publik untuk menerima notifikasi catatan baru dan catatan yang berubah, tanpa perlu polling.

curl

curl -X POST 'https://public-api.altalt.io/v1/webhook-endpoints' \
  -H "Authorization: Bearer $ALT_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "url": "https://example.com/webhooks/alt",
    "events": ["note.ended", "note.summary.generated", "note.updated", "note.deleted"]
  }'

Respons berisi signing_secret (whsec_...) — hanya ditampilkan sekali. Endpoint dimulai dengan status pending_verification; endpoint menjadi aktif setelah receiver Anda membalas event verifikasi dengan 2xx. Anda juga bisa melakukannya tanpa kode lewat console.

4. Verifikasi signature webhook

Verifikasi signature Standard Webhooks pada setiap webhook request untuk memastikan request berasal dari Alt. Lewati duplikat dengan event_id, kirim respons terlebih dahulu, lalu ambil konten terbaru dari REST API.

Node.js

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

// whsec_... secret from endpoint creation (shown once). Keep it server-side.
const SECRET = process.env.ALT_WEBHOOK_SECRET;
const secretBytes = Buffer.from(SECRET.slice("whsec_".length), "base64url");

const TOLERANCE_SECONDS = 300;

function isValidSignature(headers, rawBody) {
  const id = headers["webhook-id"];
  const timestamp = headers["webhook-timestamp"];
  const signatureHeader = headers["webhook-signature"];
  if (!id || !timestamp || !signatureHeader) return false;

  // Reject stale timestamps (replay protection)
  if (Math.abs(Date.now() / 1000 - Number(timestamp)) > TOLERANCE_SECONDS) return false;

  const expected = createHmac("sha256", secretBytes)
    .update(`${id}.${timestamp}.${rawBody}`)
    .digest("base64");

  // Header may contain multiple space-delimited signatures: "v1,abc v1,def"
  return String(signatureHeader)
    .split(" ")
    .some((part) => {
      const [version, signature] = part.split(",");
      if (version !== "v1" || !signature) return false;
      const a = Buffer.from(signature);
      const b = Buffer.from(expected);
      return a.length === b.length && timingSafeEqual(a, b);
    });
}

http
  .createServer((req, res) => {
    if (req.method !== "POST" || req.url !== "/webhooks/alt") {
      res.writeHead(404).end();
      return;
    }
    let rawBody = "";
    req.on("data", (chunk) => (rawBody += chunk));
    req.on("end", () => {
      if (!isValidSignature(req.headers, rawBody)) {
        res.writeHead(401).end();
        return;
      }
      const event = JSON.parse(rawBody);
      // 1. Dedupe on event.event_id (deliveries are at-least-once).
      // 2. Enqueue for async processing, then ack fast.
      // 3. Fetch the note from the REST API; apply only if revision is newer.
      console.log(event.event_type, event.data.note_id, event.data.revision);
      res.writeHead(204).end();
    });
  })
  .listen(3000);

Python

import base64, hashlib, hmac, json, os, time
from http.server import BaseHTTPRequestHandler, HTTPServer

# whsec_... secret from endpoint creation (shown once). Keep it server-side.
raw_secret = os.environ["ALT_WEBHOOK_SECRET"].removeprefix("whsec_")
SECRET = base64.urlsafe_b64decode(raw_secret + "=" * (-len(raw_secret) % 4))

TOLERANCE_SECONDS = 300


def is_valid_signature(headers, raw_body: bytes) -> bool:
    msg_id = headers.get("webhook-id", "")
    timestamp = headers.get("webhook-timestamp", "")
    signature_header = headers.get("webhook-signature", "")
    if not msg_id or not timestamp or not signature_header:
        return False

    # Reject stale timestamps (replay protection)
    if abs(time.time() - float(timestamp)) > TOLERANCE_SECONDS:
        return False

    signed_content = f"{msg_id}.{timestamp}.".encode() + raw_body
    digest = hmac.new(SECRET, signed_content, hashlib.sha256).digest()
    expected = base64.b64encode(digest).decode()

    # Header may contain multiple space-delimited signatures: "v1,abc v1,def"
    for part in signature_header.split(" "):
        version, _, signature = part.partition(",")
        if version == "v1" and signature and hmac.compare_digest(signature, expected):
            return True
    return False


class Handler(BaseHTTPRequestHandler):
    def do_POST(self):
        if self.path != "/webhooks/alt":
            self.send_response(404); self.end_headers(); return
        raw_body = self.rfile.read(int(self.headers.get("Content-Length", 0)))
        if not is_valid_signature(self.headers, raw_body):
            self.send_response(401); self.end_headers(); return
        event = json.loads(raw_body)
        # 1. Dedupe on event["event_id"] (deliveries are at-least-once).
        # 2. Enqueue for async processing, then ack fast.
        # 3. Fetch the note from the REST API; apply only if revision is newer.
        print(event["event_type"], event["data"]["note_id"], event["data"]["revision"])
        self.send_response(204); self.end_headers()


HTTPServer(("", 3000), Handler).serve_forever()

Signature mengikuti spesifikasi Standard Webhooks, jadi library standardwebhooks resmi (npm / PyPI) pun bisa langsung dipakai. Lihat Webhooks untuk duplikat, urutan pengiriman, dan rekonsiliasi.