Introduction

@blaze-cardano/query defines how Blaze reads from and writes to Cardano network backends.

The central abstraction is Provider. Transaction builders use providers for protocol parameters, UTxO lookup, datum lookup, script-reference lookup, transaction evaluation, submission, confirmation, and slot/time conversion.

Common provider choices:

• Blockfrost for hosted REST access.
• Maestro for Maestro-backed chain queries, evaluation, and submission.
• Kupmios for Kupo plus Ogmios environments.
• RoutedProvider when an application wants separate backends for reads, evaluation, submission, or specific query methods.

Continue with provider routing, advanced querying, and provider internals.