ICRC Rosetta data API reference
The following data can be fetched from the data API endpoints for the ICRC Rosetta implementation:
Network: Fetch network-specific information, such as the most recent block and what network Rosetta is connected to.
Balances: Fetch the balance of an
account_identifier.Blocks: Fetch blocks from the ICRC-1 ledger.
Transactions: Fetch transactions from the ICRC-1 ledger.
- Prerequisites
http://127.0.0.1:8081 You are familiar with the concept of staking on the NNS in general.Fetch account balances
The account_balance endpoint allows you to fetch the balances for a certain account. It is the implementation of the /account/balance endpoint of the Rosetta API standard.
Make sure to use the correct network_identifier. For this example, an arbitrary account_identifier with the principal xmiu5-jqaaa-aaaag-qbz7q-cai and the default subaccount 0000000000000000000000000000000000000000000000000000000000000000 was used.
Example
curl --location '0.0.0.0:8082/account/balance' --header 'Content-Type: application/json' --data '{
"network_identifier": {
"blockchain": "Internet Computer",
"network": "mxzaz-hqaaa-aaaar-qaada-cai"
},
"account_identifier": {
"address": "xmiu5-jqaaa-aaaag-qbz7q-cai",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
}
}'
The response will give you the balance of the account_identifier at the most recent block.
{
"block_identifier": {
"index": 1357692,
"hash": "5f1719c97f981f663f5ca612a24a503734eb87d5fbfc295193ab4a29ae139f3f"
},
"balances": [
{
"value": "134469737",
"currency": {
"symbol": "ckBTC",
"decimals": 8
}
}
]
}
Fetch blocks
The block endpoint allows you to fetch blocks at a certain block height. It is the implementation of the /block endpoint of the Rosetta API standard.
Make sure to use the correct network_identifier. For this example the following arbitrary block_identifier is used:
"block_identifier": {
"index": 1357691,
"hash": "0415ed9ea78fed787e125179c99a7d0e599ee6e4cb0d610eed2c791e6e3f5e19"
}
The block_identifier required here is a PartialBlockIdentifier, which means you can either provide the index, the hash, or both. For example, you can select a transaction of interest in the ckBTC dashboard and use the index displayed there to fetch the corresponding block from Rosetta. The following example only provides the index, but you are free to use the full block_identifier or only the hash.
If you are connecting to a different ICRC-1 ledger other than the ckBTC ledger, you cannot use the index and hash from the ckBTC ledger.
Example
The request will resemble the following:
curl --location '0.0.0.0:8082/block' --header 'Content-Type: application/json' --data '{
"network_identifier": {
"blockchain": "Internet Computer",
"network": "mxzaz-hqaaa-aaaar-qaada-cai"
},
"block_identifier": {
"index": 1357691
}
}'
The response will give you the transaction within the block; in this case, it is a transfer between accounts. While the operation field shows you the basic information about the operation, the metadata of the transaction reveals information specific to ICRC-1 transactions, such as the memo, the fee_collector_block_index, and created_at_time. The operation name and metadata vary between operation types. It is recommended to try and fetch a block of interest and see how the metadata and operation are formed to acquire an understanding of how the ICRC Rosetta implementation parses the block information for various operation types.
{
"block": {
"block_identifier": {
"index": 1357691,
"hash": "0415ed9ea78fed787e125179c99a7d0e599ee6e4cb0d610eed2c791e6e3f5e19"
},
"parent_block_identifier": {
"index": 1357690,
"hash": "733a2ca495090d99c5e87898d16cc3903a351da436d57e795e01fcaeb37d3ddb"
},
"timestamp": 1712825491835,
"transactions": [
{
"transaction_identifier": {
"hash": "700481a99b9a10cf4c4d037141ae5f1472fefe1f5be6b43d02577e398da4bdfe"
},
"operations": [
{
"operation_identifier": {
"index": 3
},
"related_operations": [
{
"index": 4
},
{
"index": 5
}
],
"type": "TRANSFER",
"status": "COMPLETED",
"account": {
"address": "lrf2i-zba54-pygwt-tbi75-zvlz4-7gfhh-ylcrq-2zh73-6brgn-45jy5-cae",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"value": "230407",
"currency": {
"symbol": "ckBTC",
"decimals": 8
}
}
},
{
"operation_identifier": {
"index": 4
},
"related_operations": [
{
"index": 3
},
{
"index": 5
}
],
"type": "TRANSFER",
"status": "COMPLETED",
"account": {
"address": "xmiu5-jqaaa-aaaag-qbz7q-cai",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"value": "-230407",
"currency": {
"symbol": "ckBTC",
"decimals": 8
}
}
},
{
"operation_identifier": {
"index": 5
},
"related_operations": [
{
"index": 3
},
{
"index": 4
}
],
"type": "FEE",
"status": "COMPLETED",
"account": {
"address": "xmiu5-jqaaa-aaaag-qbz7q-cai",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"value": "-10",
"currency": {
"symbol": "ckBTC",
"decimals": 8
}
},
"metadata": {
"fee_set_by": "User"
}
}
],
"metadata": {
"memo": [
0,
0,
0,
0,
0,
0,
249,
198
]
}
}
],
"metadata": {
"block_created_at_nano_seconds": 1712825491835944099,
"fee_collector_block_index": 39493
}
}
}
Querying block ranges
One limitation of the /block endpoint is that you can only query one block at a time. Depending on your setup, this may be a bottleneck. To alleviate this issue, you can use the /call endpoint and parse the method name query_block_range to fetch up to 10_000 blocks at a time.
An example call resembles the following:
curl --location '0.0.0.0:8082/call' --header 'Content-Type: application/json' --data '{
"network_identifier": {
"blockchain": "Internet Computer",
"network": "mxzaz-hqaaa-aaaar-qaada-cai"
},
"method_name": "query_block_range",
"parameters":{
"highest_block_index":1646155,
"number_of_blocks":2
}
}'
The following parameters are used:
number_of_blocks: The amount of blocks you want to fetch. The maximum value for it is10_000.highest_block_index: The block you are trying to fetch with the highest block index. All subsequent blocks that you want to fetch in the same call will have a lower block index. Ifhighest_block_index > XwithXbeing the most recent block in the Rosetta database, then Rosetta will only return the blocks in the range[highest_block_index,highest_block_index-number_of_blocks]that have a block index that is smaller or equal toX. This means that Rosetta does not guarantee that all blocks that you asked for are present in the database, and it does not guarantee that the exact number of blocks you asked for will be returned.
As a result of the call above, you will receive 2 blocks:
{
"result": {
"blocks": [
{
"block_identifier": {
"hash": "6ea4c7fb1e48342f1a0ea5b2de003968a5a36e541e450ff1602a4a474dc29174",
"index": 1646154
},
"metadata": {
"block_created_at_nano_seconds": 1720421067709600392,
"fee_collector_block_index": 39493
},
"parent_block_identifier": {
"hash": "dc94daf067417121d713787499acbf03d2e9a1be9397434b00ed8943f12157c7",
"index": 1646153
},
"timestamp": 1720421067709,
"transactions": [
{
"metadata": {
"memo": [
0,
0,
0,
0,
0,
0,
6,
214
]
},
"operations": [
{
"account": {
"address": "dwx4w-plydf-jxgs5-uncbu-mfyds-5vjzm-oohax-gmvja-cypv7-tmbt4-dqe",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"currency": {
"decimals": 8,
"symbol": "ckBTC"
},
"value": "3739"
},
"operation_identifier": {
"index": 0
},
"status": null,
"type": "TRANSFER"
},
{
"account": {
"address": "nm7k6-wyaaa-aaaag-qcasa-cai",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"currency": {
"decimals": 8,
"symbol": "ckBTC"
},
"value": "-3739"
},
"operation_identifier": {
"index": 1
},
"status": null,
"type": "TRANSFER"
},
{
"account": {
"address": "nm7k6-wyaaa-aaaag-qcasa-cai",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"currency": {
"decimals": 8,
"symbol": "ckBTC"
},
"value": "-10"
},
"metadata": {
"fee_set_by": "User"
},
"operation_identifier": {
"index": 2
},
"status": null,
"type": "FEE"
}
],
"transaction_identifier": {
"hash": "ba6c39964c09fa25df5a8f913105dd3bca5906750df792abec3c2bf8ca5e7edb"
}
}
]
},
{
"block_identifier": {
"hash": "a32007da0adc180b437721d8b6d0ff641671a72a61518169bfec9f9999754731",
"index": 1646155
},
"metadata": {
"block_created_at_nano_seconds": 1720421077260937639,
"fee_collector_block_index": 39493
},
"parent_block_identifier": {
"hash": "6ea4c7fb1e48342f1a0ea5b2de003968a5a36e541e450ff1602a4a474dc29174",
"index": 1646154
},
"timestamp": 1720421077260,
"transactions": [
{
"metadata": {
"memo": [
0,
0,
0,
0,
0,
2,
42,
160
]
},
"operations": [
{
"account": {
"address": "xmiu5-jqaaa-aaaag-qbz7q-cai",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"currency": {
"decimals": 8,
"symbol": "ckBTC"
},
"value": "3719"
},
"operation_identifier": {
"index": 0
},
"status": null,
"type": "TRANSFER"
},
{
"account": {
"address": "dwx4w-plydf-jxgs5-uncbu-mfyds-5vjzm-oohax-gmvja-cypv7-tmbt4-dqe",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"currency": {
"decimals": 8,
"symbol": "ckBTC"
},
"value": "-3719"
},
"operation_identifier": {
"index": 1
},
"status": null,
"type": "TRANSFER"
},
{
"account": {
"address": "xmiu5-jqaaa-aaaag-qbz7q-cai",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"operation_identifier": {
"index": 2
},
"status": null,
"type": "SPENDER"
},
{
"account": {
"address": "dwx4w-plydf-jxgs5-uncbu-mfyds-5vjzm-oohax-gmvja-cypv7-tmbt4-dqe",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"currency": {
"decimals": 8,
"symbol": "ckBTC"
},
"value": "-10"
},
"metadata": {
"fee_set_by": "User"
},
"operation_identifier": {
"index": 3
},
"status": null,
"type": "FEE"
}
],
"transaction_identifier": {
"hash": "fc3ecc3d72c45e1e7b505c8cb2da0afc1beab9ca23e1873456af0accabd3ebf8"
}
}
]
}
]
},
"idempotent": true
}
The field idempotent indicates whether the query you asked for will return the same result when fetched at a later point in time. This is always true if highest_block_index exists in the Rosetta database. Otherwise, it may be the case that at a later point in time, more blocks have been added to the database and can thus be returned as a result.
Fetch network information
Most endpoints require some information about the network represented as a NetworkIdentifier.
Fetch network list
The network list endpoint will give you information about the NetworkIdentifier you need to use for ICP Rosetta. It requires no arguments and can thus also be used as a health check. You can fetch the endpoint using the following command:
curl --location '0.0.0.0:8082/network/list' --header 'Content-Type: application/json' --data '{
"metadata": {}
}'
The response will resemble the following:
{
"network_identifiers": [
{
"blockchain": "Internet Computer",
"network": "mxzaz-hqaaa-aaaar-qaada-cai"
}
]
}
This example is connected to the ckBTC ledger with the canister ID mxzaz-hqaaa-aaaar-qaada-cai.
You can use this network_identifier with other endpoints, which will require you to provide it in the data section of your HTTPS call.
Fetch network options
This endpoint returns the version information and allowed network-specific types for a network_identifier.
curl --location '0.0.0.0:8082/network/options' --header 'Content-Type: application/json' --data '{
"network_identifier": {
"blockchain": "Internet Computer",
"network": "mxzaz-hqaaa-aaaar-qaada-cai"
},
"metadata": {}
}'
The response will give you information on the error types, the supported operations, and metadata about the ICP Rosetta node you are running.
{
"version": {
"rosetta_version": "1.4.13",
"node_version": "1.0.0"
},
"allow": {
"operation_statuses": [
{
"status": "COMPLETED",
"successful": true
}
],
"operation_types": [
"MINT",
"BURN",
"TRANSFER",
"SPENDER",
"APPROVE",
"FEE",
"FEE_COLLECTOR"
],
"errors": [
{
"code": 1,
"message": "Invalid network identifier",
"description": "\"Invalid NetworkIdentifier. Expected Identifier: NetworkIdentifier { blockchain: \\\"Internet Computer\\\", network: \\\"mxzaz-hqaaa-aaaar-qaada-cai\\\", sub_network_identifier: None } \"",
"retriable": false
},
{
"code": 2,
"message": "Unable to find block",
"description": "\"Unable to find block\"",
"retriable": false
},
{
"code": 3,
"message": "Invalid block identifier provided",
"description": "\"Unable to find block\"",
"retriable": false
},
{
"code": 4,
"message": "Failed to build block response",
"description": "\"Faild to create a response for fetching blocks.\"",
"retriable": false
},
{
"code": 5,
"message": "Invalid transaction identifier provided",
"description": "Invalid transaction identifier provided.",
"retriable": false
},
{
"code": 6,
"message": "Mempool transaction not found",
"description": "Mempool transaction not found.",
"retriable": false
},
{
"code": 7,
"message": "Failed trying to parse types.",
"description": "\"Failed to parse in between types.\"",
"retriable": false
},
{
"code": 8,
"message": "The operation TRANSFER is not supported by ICRC Rosetta.",
"retriable": false
},
{
"code": 9,
"message": "Failed to communicate with the icrc1 ledger.",
"description": "\"Rosetta could not communicate with the ICRC-1 Ledger successfully.\"",
"retriable": false
},
{
"code": 13,
"message": "Unable to find account balance.",
"description": "\"The balance for the given account could not be fetched.\"",
"retriable": false
},
{
"code": 10,
"message": "Error while processing the request.",
"description": "\"The input of the user resulted in an error while trying to process the request.\"",
"retriable": false
},
{
"code": 11,
"message": "Processing of the construction request failed.",
"description": "\"An error while processing an construction api endpoint occured.\"",
"retriable": false
},
{
"code": 12,
"message": "Invalid metadata provided.",
"description": "\"The metadata provided by the user is invalid.\"",
"retriable": false
}
],
"historical_balance_lookup": true,
"call_methods": [],
"balance_exemptions": [],
"mempool_coins": false
}
}
Fetch network status
This endpoint returns the current status of the network requested.
curl --location '0.0.0.0:8082/network/status' --header 'Content-Type: application/json' --data '{
"network_identifier": {
"blockchain": "Internet Computer",
"network": "mxzaz-hqaaa-aaaar-qaada-cai"
},
"metadata": {}
}'
The response gives you information about the genesis block and the tip of the chain. You can use this to fetch blocks from the ICRC Rosetta.
{
"current_block_identifier": {
"index": 1357691,
"hash": "0415ed9ea78fed787e125179c99a7d0e599ee6e4cb0d610eed2c791e6e3f5e19"
},
"current_block_timestamp": 1712825491835,
"genesis_block_identifier": {
"index": 0,
"hash": "b0e8e9d676e9283877dc50db00cd41cf605568ce1f0a2126cda9dcc6562f3401"
},
"oldest_block_identifier": {
"index": 0,
"hash": "b0e8e9d676e9283877dc50db00cd41cf605568ce1f0a2126cda9dcc6562f3401"
},
"peers": []
}
Fetch block transactions
There are two endpoints that allow for querying transactions.
The block_transaction endpoint allows you to fetch a transaction at a certain block height. It is the implementation of the /block/transaction endpoint of the Rosetta API standard.
The search_transactions endpoint allows you to query for transactions given a set of parameters. It is the implementation of the /search/transactions endpoint.
An ICRC-1 ledger block always contains exactly one transaction. The hash of the block as well as the index of the block is guaranteed to be unique, while the hash of the transaction is not.
Make sure to use the correct network_identifier.
block/transaction endpoint
For this example, the following arbitrary block_identifier and transaction_identifier are used:
"block_identifier": {
"index": 1357691,
"hash": "0415ed9ea78fed787e125179c99a7d0e599ee6e4cb0d610eed2c791e6e3f5e19"
}
"transaction_identifier": {
"hash": "700481a99b9a10cf4c4d037141ae5f1472fefe1f5be6b43d02577e398da4bdfe"
}
An example request can be found below:
curl --location '0.0.0.0:8082/block/transaction' --header 'Content-Type: application/json' --data '{
"network_identifier": {
"blockchain": "Internet Computer",
"network": "mxzaz-hqaaa-aaaar-qaada-cai"
},
"block_identifier": {
"index": 1357691,
"hash": "0415ed9ea78fed787e125179c99a7d0e599ee6e4cb0d610eed2c791e6e3f5e19"
},
"transaction_identifier": {
"hash": "700481a99b9a10cf4c4d037141ae5f1472fefe1f5be6b43d02577e398da4bdfe"
}
}'
The response is similar to that of the block endpoint, as there is only one transaction within a block. If you want to fetch multiple transactions at a time, you may want to have a look at the /call endpoint that allows you to query multiple blocks at a time.
{
"transaction": {
"transaction_identifier": {
"hash": "700481a99b9a10cf4c4d037141ae5f1472fefe1f5be6b43d02577e398da4bdfe"
},
"operations": [
{
"operation_identifier": {
"index": 3
},
"related_operations": [
{
"index": 4
},
{
"index": 5
}
],
"type": "TRANSFER",
"status": "COMPLETED",
"account": {
"address": "lrf2i-zba54-pygwt-tbi75-zvlz4-7gfhh-ylcrq-2zh73-6brgn-45jy5-cae",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"value": "230407",
"currency": {
"symbol": "ckBTC",
"decimals": 8
}
}
},
{
"operation_identifier": {
"index": 4
},
"related_operations": [
{
"index": 3
},
{
"index": 5
}
],
"type": "TRANSFER",
"status": "COMPLETED",
"account": {
"address": "xmiu5-jqaaa-aaaag-qbz7q-cai",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"value": "-230407",
"currency": {
"symbol": "ckBTC",
"decimals": 8
}
}
},
{
"operation_identifier": {
"index": 5
},
"related_operations": [
{
"index": 3
},
{
"index": 4
}
],
"type": "FEE",
"status": "COMPLETED",
"account": {
"address": "xmiu5-jqaaa-aaaag-qbz7q-cai",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"value": "-10",
"currency": {
"symbol": "ckBTC",
"decimals": 8
}
},
"metadata": {
"fee_set_by": "User"
}
}
],
"metadata": {
"memo": [
0,
0,
0,
0,
0,
0,
249,
198
]
}
}
}
search/transactions endpoint
There are several parameters that can be used to query transactions. See the full specification to see what query parameters can be used.
For example, if you want to fetch all transactions in a given block (range of maximal 10000 blocks) where a specific account was involved, you can make a request to the search/transactions endpoint:
curl --location '0.0.0.0:8081/search/transactions' --header 'Content-Type: application/json' --data '{
"network_identifier": {
"blockchain": "Internet Computer",
"network":"2ouva-viaaa-aaaaq-aaamq-cai"
},
"account_identifier": {
"address": "h2upz-svoky-hpfgf-lobao-afowo-h6xs6-4jhj5-26q3u-zimva-as2tg-dae",
"sub_account":{
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
}
}'
The response lists all transactions where the given account_identifier was involved:
{
"transactions": [
{
"block_identifier": {
"index": 327933,
"hash": "bfef612ec9c8734ea5ade23844c0e9299ba51bd588e07f87f4050b69cc05991c"
},
"transaction": {
"transaction_identifier": {
"hash": "a0739cfa2cd7fa64b9408805bac6e36ba8a02fcaf837b3a47a12a8651dec30ec"
},
"operations": [
{
"operation_identifier": {
"index": 3
},
"related_operations": [
{
"index": 4
},
{
"index": 5
}
],
"type": "TRANSFER",
"status": "COMPLETED",
"account": {
"address": "a2teg-wgpcc-sdxre-jeg7v-7cnsd-m773p-7fjwv-b26yv-vucfg-k2ge7-bae",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"value": "5736352790",
"currency": {
"symbol": "CHAT",
"decimals": 8
}
}
},
{
"operation_identifier": {
"index": 4
},
"related_operations": [
{
"index": 3
},
{
"index": 5
}
],
"type": "TRANSFER",
"status": "COMPLETED",
"account": {
"address": "h2upz-svoky-hpfgf-lobao-afowo-h6xs6-4jhj5-26q3u-zimva-as2tg-dae",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"value": "-5736352790",
"currency": {
"symbol": "CHAT",
"decimals": 8
}
}
},
{
"operation_identifier": {
"index": 5
},
"related_operations": [
{
"index": 3
},
{
"index": 4
}
],
"type": "FEE",
"status": "COMPLETED",
"account": {
"address": "h2upz-svoky-hpfgf-lobao-afowo-h6xs6-4jhj5-26q3u-zimva-as2tg-dae",
"sub_account": {
"address": "0000000000000000000000000000000000000000000000000000000000000000"
}
},
"amount": {
"value": "-100000",
"currency": {
"symbol": "CHAT",
"decimals": 8
}
},
"metadata": {
"fee_set_by": "User"
}
}
],
"metadata": {
"created_at_time": 1716902391113000000
}
}
},
{
"block_identifier": {
"index": 327931,
"hash": "9fc7c296376b7d8479419dade3c9a6976a87c547dce4c530c1bb5937996567ee"
},
"transaction": {
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