OKT Chain API

OKT Chain (OKTC) is an EVM-compatible L1 blockchain in Cosmos focusing on interoperability and speed. Its ecosystem, incorporating a multi-chain Web3 interface, ensures a smooth experience for users and developers.

Networks Mainnet
Released 2021
Consensus Tendermint; Delegated Proof of Stake (DPoS)
Smart contracts Yes
Block time ~4 seconds
Smart contract language(s) supported GraphQL
Get started with OKT Chain

Bitcoin
Ethereum
XRP Ledger
Ethereum Classic
Bitcoin Cash
Dash
Litecoin
Dogecoin
Zilliqa
View all supported

The OKT Chain API — build without running a node

Access OKT Chain blockchain data through one unified REST API: transaction and address data, balances, block data, and real-time webhooks for on-chain events — with no OKT Chain node to run and maintain. Start free and scale as you grow.

Blockchain data

Read OKT Chain transactions, addresses, balances, UTXOs, and block data through one REST API.

Real-time webhooks

Subscribe to on-chain events — incoming and outgoing transactions, confirmations, and mined blocks.

No node to run

Skip the infrastructure — managed, always-synced access with no node to operate or maintain.

View the API docs Start building free

Building a full wallet? Explore Wallet as a Service.

Need prices too? See the crypto price API, or run your own OKT Chain RPC nodes.

What makes OKT Chain unique?

OKT Chain (OKTC) is an EVM-compatible L1 blockchain in Cosmos with interoperability functions (IBC) and high performance. With high scalability and low gas fees, developers can efficiently build and scale. Its ecosystem, featuring an all-in-one multi-chain Web3 interface ensures a smooth experience.