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Every tool for you to build with Cardano.

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cardano-testnet
Spins up a local, multi-node Cardano cluster with configurable genesis, era and node topology, for integration testing and local development. Ships as a command-line tool and as a Haskell library for writing Hedgehog-based integration tests against a running network.
Developer EnvironmentsHaskell
NEW
cardano-sieve
Pattern-filtered chain index that follows a local Cardano node, records every matching UTxO with when it was created and spent in SQLite, and serves the results over an HTTP API.
Indexers & DataHaskellREST
NEW
cardano-wasm
Subset of the cardano-api Haskell library compiled to WebAssembly, with a JavaScript and TypeScript API for key management, addresses, transaction building, fee estimation and signing in the browser and Node.js.
SDKs & LibrariesTypeScriptJavaScript
NEW
cardano-rpc
gRPC server built into cardano-node that implements the UTxO RPC specification: query UTxOs and protocol parameters, submit and evaluate transactions, and follow the chain tip as a stream.
Node Access & RPCgRPCHaskell
NEW
cardano-api
Haskell library for building, signing and submitting transactions, managing keys and addresses, and querying a Cardano node. It is the library that cardano-cli is built on.
SDKs & LibrariesHaskell
cip30-test-wallet
CIP-30 test wallet that injects into Playwright tests and signs transactions and messages without a wallet popup, so CI and coding agents can test dApp wallet flows unattended. Includes a catalogue of wallet quirks and a CSP doctor.
Testing & DebuggingTypeScriptAgentic
PoolTerminal
Desktop dashboard for stake pool operators that connects to a block producer over SSH and surfaces chain, KES, block propagation, delegator and reward data in one view, with history stored locally. Read-only: it observes the node and cannot sign, spend, or control it.
Node OperationsJavaScriptRust
Nexus
Hosted Cardano API with REST and WebSocket access to chain data: addresses, transactions, stake pools, DReps, and market data.
APIs & ProvidersRESTWebSocket
cardano.delivery
Webhook service that sends HTTP notifications for Cardano events, including transactions, blocks, delegations, epochs and governance actions, filterable by address, amount, and policy ID. Agents can create self-expiring webhooks with a single call and no account, and an MCP server is included.
APIs & ProvidersWebhooksAgentic
Pyth Pro
Pull-based oracle delivering low-latency price feeds for crypto, equities, FX, and commodities to Cardano DeFi, sourced from first-party institutional publishers.
Oracles & Data FeedsRESTWebSocket
Orcfax
Decentralized oracle publishing real-world price and event data to Cardano, delivered to on-chain Plutus contracts in eUTXO-native format.
Oracles & Data Feeds
Charli3
Decentralized oracle network delivering auditable on-chain price feeds and custom data records to Cardano smart contracts.
Oracles & Data FeedsREST

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