Acquire an API Key

This guide explains how to acquire an API key for Pyth Pro, which is required to authenticate websocket connections and authenticated HTTP endpoints (the REST API and the signed price endpoints) and subscribe to price updates.

Request API KeyCopy Anchor Link

Once you have logged in, click on the 🔑 View your API key button to obtain your API key.

Using the API KeyCopy Anchor Link

Once you receive your API key, use it to authenticate the websocket connection by passing it as an Authorization header with the value Bearer {key}.

Example UsageCopy Anchor Link

import { PythLazerClient } from "@pythnetwork/pyth-lazer-sdk";

const client = await PythLazerClient.create({
  token: "YOUR_API_KEY",
  webSocketPoolConfig: {
    urls: [
      "wss://pyth-lazer-0.dourolabs.app/v1/stream",
      "wss://pyth-lazer-1.dourolabs.app/v1/stream",
      "wss://pyth-lazer-2.dourolabs.app/v1/stream",
    ],
  },
});

The same Authorization: Bearer <PRO_API_KEY> header authenticates the REST API and the signed price endpoints. For example, against the REST API:

curl -H "Authorization: Bearer $PRO_API_KEY" \
  "https://pyth.dourolabs.app/v1/fixed_rate@200ms/price?ids=1&timestamp=1704067200000000"

Browser and frontend apps must not embed the key — route requests through your own backend, which injects the header before forwarding, or use the short-lived JWT flow described in Frontend Authentication. See the Authentication sections of the REST API and Fetch Signed Price Updates for full details.

Next StepsCopy Anchor Link

• Subscribe to price feeds using the Pyth Pro websocket API.
• For browser/frontend apps, follow Frontend Authentication to hand out short-lived JWTs instead of embedding the API key.