Good news, everyone!

We are excited to announce the launch of our webhook service.
(Actually, there might still be some issues like delivery delays, but the API is stabilized.)

What is it and why do you need it?
TON is renowned for its scalability, meaning more transactions and blocks are added to the blockchain every second. In last year's stress tests, a record of 100,000 transactions per second was set. This means the blockchain generated over 100 megabytes of blocks per second or about a gigabit of incoming traffic if you want to view the entire blockchain. Of course, not every service needs to view all transactions in all blocks to find valuable insights.
To solve this problem, we are launching a webhook service that allows you to subscribe only to the data you need. Our service will attempt to deliver messages at increasing intervals until your server returns a 200 response.

Current subscription options:

1. Subscription to specific accounts - You can subscribe to a million accounts, and if a transaction occurs on any of them, we will notify you. Charges are based on the number of monitored account-days and each event.

2. Subscription to specific opcodes of incoming messages - If any account receives an incoming message with such an opcode, we will notify you. Up to 100 opcodes per account. Charges are based on the number of events.

3. Subscription to new accounts in the network - Don't require description. Charges only for the number of messages.

4. Subscription to the mempool - We send all externals we see before they are included in the blockchain. Charges for each sent message, and no retries. If your server was unavailable, we will not attempt to resend.

Try it! Or read the docs first!

We welcome any feedback in comments to this post.