Ogmios is a lightweight bridge interface for cardano-node. It offers a WebSocket API that enables local clients to speak Ouroboros' mini-protocols via JSON/RPC.

Features

Fast synchronization of blocks from the Cardano network(s)	↗️
Transaction submission with enhanced error messages	↗️
Evaluation of Plutus script execution units	↗️
Local mempool monitoring	↗️
Full ledger state query support Query Result blockHeight The chain's highest block number. chainTip The chain's current tip. currentEpoch The current epoch of the ledger. currentProtocolParameters The current protocol parameters. delegationsAndRewards Current delegation settings and rewards of given reward accounts. eraStart The information regarding the beginning of the current era. eraSummaries Era bounds and slotting parameters details, required for proper slot arithmetic. genesisConfig Get a compact version of the era's genesis configuration. ledgerTip The most recent block tip known of the ledger. nonMyopicMemberRewards Non-myopic member rewards for each pool. Used in ranking. poolIds The list of all pool identifiers currently registered and active. poolParameters Stake pool parameters submitted with registration certificates. poolsRanking Retrieve stake pools ranking (a.k.a desirabilities). proposedProtocolParameters The last update proposal w.r.t. protocol parameters, if any. rewardsProvenance' Get details about rewards calculation for the ongoing epoch. stakeDistribution Distribution of the stake across all known stake pools. systemStart The chain's start time (UTC). utxo Current UTXO, possibly filtered by output reference.	↗️
Structured JSON logging	↗️
Health monitoring, with runtime and application statistics	↗️

Roadmap

See projects 🎯.

Preview

Clients / SDKs

TypeScript	Go	Kotlin	Java

Sponsors 💖

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📖 User Manual | 📐 Contributing | 💾 Changelog | Discord (#ogmios) | Twitter (@_KtorZ_)

Need more information? Have a look at the Frequently Asked Questions.