Transaction submission API service for self-hosted Cardano nodes

A simple service for sending transactions to a Cardano node for submission onto the blockchain.

This service is compatible with the IOHK cardano-submit-api service API for transaction submission, which makes it suitable for use with any Cardano light wallet which supports configuring a custom transaction submission endpoint. It is a simple HTTP API which accepts a CBOR encoded Cardano transaction as a payload body and submits it to a Cardano full node using the Ouroboros LocalTxSubmission Node-to-Client (NtC) protocol.

The initial version was funded Project Catalyst Fund 9.

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