Update api-types.md

docs/v3/guidelines/dapps/apis-sdks/api-types.md

@@ -10,6 +10,7 @@
 - [toncenter/v2](https://toncenter.com/) - This API enables HTTP access to TON blockchain - getting accounts and wallets information, looking up blocks and transactions, sending messages to the blockchain, calling get methods of smart contracts, and more.
 
 ## Third party APIs
+- [TONX API](https://docs.tonxapi.com/) - an API specifically designed for seamless Dapp development, enabling easy access to a variety of tools and data.
 - [tonapi.io](https://docs.tonconsole.com/tonapi) - fast indexed API which provides basic data about accounts, transactions, blocks, application-specific data about NFT, Auctions, Jettons, TON DNS, Subscriptions. It also provides annotated data on transaction chains.
 - [dton.io](https://dton.io/graphql/) - GraphQL API with that can provide data about accounts, transactions and blocks, as well as application-specific data about NFT, Auctions, Jettons and TON DNS.
 - [ton-api-v4](https://mainnet-v4.tonhubapi.com) - another lite-api focused on speed via aggressive cashing in CDN.