Overview

Internet Computer Protocol (ICP) is a decentralized Layer-1 blockchain designed to host smart contracts, applications, and services directly on-chain, enabling a fully decentralized internet.

Some ICP terminology:

• A canister is a Web3-native computational unit on the Internet Computer, combining smart contract functionality with scalable storage and processing capabilities to power decentralized applications and services.

• In the Internet Computer Protocol (ICP), a ledger is a specialized canister (smart contract) that records and manages token transactions, such as ICP or ICRC tokens, ensuring transparency and traceability.

ICRC (Internet Computer Rosetta Token Standard) is a token standard on the Internet Computer Protocol designed for fungible tokens, enabling interoperability and seamless integration across dApps and services within the network. This is similar to the ERC-20 token standard on Ethereum.

You can find reference documentation to ICP and ICRC here.

Information on Coinbase's Rosetta standard, can be found here.

Network Support

ICRC Token Support

The below tokens are supported when querying against any ICRC endpoint you create.

Interested in a token not listed? Contact us, you can use the chat widget in the bottom right of the screen.

How to use the canister principals above: For the token you are interested in, use the canister principal address in the network field of your request, for example to make a /block call involving ckBTC, your JSON body payload would look like this:

{
	"network_identifier": {
		"blockchain": "Internet Computer",
		"network": "mxzaz-hqaaa-aaaar-qaada-cai" 
		/*          ^^^^^ This is the canister principle of ckBTC. Use the table
				  below to look up the canister of the ICRC token 
				  you are interested in */
	},
	"block_identifier": {
		"index": 2318645
	}
}

Compute Units

All ICP and ICRC methods are currently 10 Compute Units.

ICP & ICRC methods