Hi - I answer from the OpenSmartRoute documentation: routing, the API, plans and quotas, self-hosting. Ask away, or open a support ticket if you need a person.
Grounded in the docs - follow a source before acting on it.
Blockstream Info - Tool - OpenSmartRoute
Toolv0.1.0
Blockstream Info
Blockstream Esplora Bitcoin block explorer (mainnet + testnet)