diff --git a/README.md b/README.md
index 9cfed8e6..c953c030 100644
--- a/README.md
+++ b/README.md
@@ -945,6 +945,7 @@ This list results from Pull Requests, reviews, ideas, and work done by 1600+ peo
   * [AnonAddy](https://anonaddy.com) - Open-source anonymous email forwarding, create unlimited email aliases for free
   * [Antideo](https://www.antideo.com) — 10 API requests per hour for email verification, IP, and phone number validation in the free tier. No Credit Cards are required.
   * [Brevo](https://www.brevo.com/) — 9,000 emails/month, 300 emails/day free
+  * [OneSignal](https://onesignal.com/) — 10,000 emails/month,No Credit Cards are required.
   * [Bump](https://bump.email/) - Free 10 Bump email addresses, one custom domain
   * [Burnermail](https://burnermail.io/) – Free 5 Burner Email Addresses, 1 Mailbox, 7-day Mailbox History
   * [Buttondown](https://buttondown.email/) — Newsletter service. Up to 100 subscribers free