# Pricing calculator

Estimate what an integration costs in credits per month.

## Why a calculator is needed

The credit cost of a call is not one number times a chain multiplier. The same
operation costs very different amounts on different chains, because a UTXO chain
has to walk far more data to answer the same question as an account-based one:

- Get address balance — 30 credits on Ethereum, 75 on BNB Smart Chain, 510 on Bitcoin
- Endpoints are separate per family, so an EVM route does not price a UTXO chain

Cost also varies by endpoint family: reading the most recent activity is cheaper
than reading full history, which requires the address to be synced first.

## The part most estimates miss

Daily monitoring and per-operation charges are roughly two thirds of a typical
monthly bill. They accrue whether or not you call anything:

- monitoring per synced address per day
- monitoring per event subscription per day
- a per-operation charge on every transaction synced
- a per-operation charge on every callback delivered

An xPub is not one address: every derived address is monitored, so 10 xPubs with
20 addresses each is 200 monitored addresses.

## Sync once, then stop

A synced address bills daily monitoring for as long as it stays synced. If you
need history once — to backfill a ledger or a tax report — sync the address,
pull what you need, store it yourself, then stop syncing. History does not
change, so there is no reason to keep paying to watch it. Use the
addresses-latest family for ongoing activity after that.

## Plans

The calculator recommends the smallest plan whose included credits cover the
total. Past 600M credits a month, pricing is worked out against actual usage
rather than a standard tier — see [Custom plan](https://cryptoapis.io/custom-plan).

See [Pricing](https://cryptoapis.io/pricing) for the plan ladder and the feature
matrix.