Overview

All of our API endpoints are metered in Work Units (WU).

Each one of our subscription plans comes with a certain amount of WUs included. If you exceed your WUs 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 WUs, the API key will be disabled until the next billing cycle.

Fixed vs Variable WU 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 WUs 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 WU cost will be:

25 * 50 = 1250 WUs

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 WU cost will be 250.

Work Unit Cost Table

EVM

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Pricing

SVM

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Cosmos

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Pricing

TVM

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

Polkadot

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UTXO

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Move

Pricing