Overview

All of our API endpoints are metered in Compute Units (CU).

Each one of our subscription plans comes with a certain amount of CUs included. If you exceed your CUs for a given month, overages will apply. You have the option to disable this for your account, which means that once you exceed your allocated CUs, the API key will be disabled until the next billing cycle.

Fixed vs Variable CU Cost

Note that some endpoints have a fixed cost per API call, and some have a variable cost that depends on how many items are returned (this most typically applies to the txs endpoints, where the total amount of CUs billed will depend on how many transactions are returned).

Example

For example, if you call txs on EVM with a pageSize of 50 and you retrieve 50 transactions on that call, your CU cost will be:

25 * 50 = 1250 CUs

If you make that same call passing a pageSize of 50 but there aren't 50 items to return, you'll only be billed for the transactions actually returned. So if you only get 10 transactions back, your CU cost will be 250.

Compute Unit Cost Table

Canton

Endpoint	Fixed CU Cost	Per-item CU Cost
/chains	0	0
/balances	25	0
/balances/party/history	0	20
/price	1	0
/price/tokenAddress/history	0	5
/update	10	0
/updates/party	0	10
/updates/party/count	5	0
/transfers/party	0	10
/transfers/party/stats	10	0
/rewards/party	0	10
/rewards/party/earnings	10	0
/rewards/party/daily	0	10
/identity/party	20	0
/ans/name	5	0
/ans/lookup/party	0	5
/ans/availability/name	1	0
/contracts/party/contractId	5	0
/streams (creation / management)	5	0
/streams (delivery)	0	10

EVM

Translate

Endpoint	Fixed CU Cost	Per-item CU Cost
/chains	0	0
/tx	25	0
/txs	0	25
/txs/job/start	0	25
/history	1	0
/raw/tx	5	0
/describeTx	25	0
/describeTxs	0	25
/tokens/balancesOf	50 / 550*	0

*The CU costs for balancesOf on EVM are determined by chain, see the table at the end of this document for details.

Pricing

Endpoint	Fixed CU Cost	Per-item CU Cost
/chains	0	0
/price	2	0
/priceFromPool	2	0

SVM

Translate

Endpoint	Fixed CU Cost	Per-item CU Cost
/chains	0	0
/tx	10	0
/txs	0	10
/txs/job/start	0	10
/history	1	0
/staking/tx	10	0
/staking/txs	0	10
/staking/epoch	10	0
/splAccounts	10	0
/tokens/balancesOf	50	0

Pricing

Endpoint	Fixed CU Cost	Per-item CU Cost
/chains	0	0
/price	2	0

Cosmos

Translate

Endpoint	Fixed CU Cost	Per-item CU Cost
/chains	0	0
/tx	25	0
/txs	0	25
/txs/job	0	25
/tokens/balancesOf	20	0

Pricing

Endpoint	Fixed CU Cost	Per-item CU Cost
/chains	0	0
/priceFromPool	2	0

TVM

Translate

Endpoint	Fixed CU Cost	Per-item CU Cost
/chains	0	0
/tx	25	0
/txs	0	25
/balances/job	0	1*

*As this endpoint works based on ad-hoc indexing of transactions, the actual cost is calculated at 1 CU per every 200 transactions indexed

Polkadot

Translate

Endpoint	Fixed CU Cost	Per-item CU Cost
/chains	0	0
/tx	25	0
/txs	0	25
/staking/rewards	0	25

UTXO

Translate

Endpoint	Fixed CU Cost	Per-item CU Cost
/chains	0	0
/tx	15	0
/txs	0	15
/btc/addresses	0	0

Move

Pricing

Endpoint	Fixed CU Cost	Per-item CU Cost
/chains	0	0
/priceFromPool	2	0

Appendix

EVM balancesOf costs by chain

Chain	Fixed CU Cost
abstract	550
arbitrum	50
arbitrum-nova	550
avalanche	50
base	50
berachain	550
blast	550
bsc	50
celo	550
cronos	50
degen	550
eth	50
fantom	550
flow-evm	50
frax	550
gnosis	50
ink	550
linea	50
mantle	550
metis	550
mode	550
moonbeam	50
morph	550
optimism	50
polygon	50
polygon-zkevm	550
ronin	50
scroll	550
sonic	550
unichain	550
worldchain	550
xai	550
zksync-era	550
zora	550