> For the complete documentation index, see [llms.txt](https://contracts.synapseprotocol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://contracts.synapseprotocol.com/messaging.md).

# messaging

- [AuthVerifier](https://contracts.synapseprotocol.com/messaging/authverifier.md)
- [GasFeePricing](https://contracts.synapseprotocol.com/messaging/gasfeepricing.md)
- [MessageBus](https://contracts.synapseprotocol.com/messaging/messagebus.md)
- [MessageBusReceiver](https://contracts.synapseprotocol.com/messaging/messagebusreceiver.md)
- [MessageBusSender](https://contracts.synapseprotocol.com/messaging/messagebussender.md)
- [apps](https://contracts.synapseprotocol.com/messaging/apps.md)
- [BatchMessageSender](https://contracts.synapseprotocol.com/messaging/apps/batchmessagesender.md)
- [PingPong](https://contracts.synapseprotocol.com/messaging/apps/pingpong.md)
- [dfk](https://contracts.synapseprotocol.com/messaging/dfk.md)
- [HeroCoreUpgradeable](https://contracts.synapseprotocol.com/messaging/dfk/herocoreupgradeable.md)
- [IAssistingAuction](https://contracts.synapseprotocol.com/messaging/dfk/iassistingauction.md)
- [IHeroCoreUpgradeable](https://contracts.synapseprotocol.com/messaging/dfk/iherocoreupgradeable.md)
- [IStatScienceUpgradeable](https://contracts.synapseprotocol.com/messaging/dfk/istatscienceupgradeable.md)
- [StatScienceUpgradeable](https://contracts.synapseprotocol.com/messaging/dfk/statscienceupgradeable.md)
- [auctions](https://contracts.synapseprotocol.com/messaging/dfk/auctions.md)
- [AssistingAuctionUpgradeable](https://contracts.synapseprotocol.com/messaging/dfk/auctions/assistingauctionupgradeable.md)
- [ERC721AuctionBaseUpgradeable](https://contracts.synapseprotocol.com/messaging/dfk/auctions/erc721auctionbaseupgradeable.md)
- [HeroAuctionUpgradeable](https://contracts.synapseprotocol.com/messaging/dfk/auctions/heroauctionupgradeable.md)
- [helpers](https://contracts.synapseprotocol.com/messaging/dfk/auctions/helpers.md)
- [CrystalFeesUpgradeable](https://contracts.synapseprotocol.com/messaging/dfk/auctions/helpers/crystalfeesupgradeable.md)
- [interfaces](https://contracts.synapseprotocol.com/messaging/dfk/auctions/interfaces.md)
- [IAssistingAuctionUpgradeable](https://contracts.synapseprotocol.com/messaging/dfk/auctions/interfaces/iassistingauctionupgradeable.md)
- [bridge](https://contracts.synapseprotocol.com/messaging/dfk/bridge.md)
- [HeroBridgeUpgradeable](https://contracts.synapseprotocol.com/messaging/dfk/bridge/herobridgeupgradeable.md)
- [TearBridge](https://contracts.synapseprotocol.com/messaging/dfk/bridge/tearbridge.md)
- [inventory](https://contracts.synapseprotocol.com/messaging/dfk/inventory.md)
- [GaiaTears](https://contracts.synapseprotocol.com/messaging/dfk/inventory/gaiatears.md)
- [IInventoryItem](https://contracts.synapseprotocol.com/messaging/dfk/inventory/iinventoryitem.md)
- [InventoryItem](https://contracts.synapseprotocol.com/messaging/dfk/inventory/inventoryitem.md)
- [libs](https://contracts.synapseprotocol.com/messaging/dfk/libs.md)
- [LibGeneScience](https://contracts.synapseprotocol.com/messaging/dfk/libs/libgenescience.md)
- [random](https://contracts.synapseprotocol.com/messaging/dfk/random.md)
- [IRandomGenerator](https://contracts.synapseprotocol.com/messaging/dfk/random/irandomgenerator.md)
- [RandomGenerator](https://contracts.synapseprotocol.com/messaging/dfk/random/randomgenerator.md)
- [framework](https://contracts.synapseprotocol.com/messaging/framework.md)
- [SynMessagingReceiver](https://contracts.synapseprotocol.com/messaging/framework/synmessagingreceiver.md)
- [SynMessagingReceiverUpgradeable](https://contracts.synapseprotocol.com/messaging/framework/synmessagingreceiverupgradeable.md)
- [interfaces](https://contracts.synapseprotocol.com/messaging/interfaces.md)
- [IAuthVerifier](https://contracts.synapseprotocol.com/messaging/interfaces/iauthverifier.md)
- [IGasFeePricing](https://contracts.synapseprotocol.com/messaging/interfaces/igasfeepricing.md)
- [IMessageBus](https://contracts.synapseprotocol.com/messaging/interfaces/imessagebus.md)
- [ISynMessagingReceiver](https://contracts.synapseprotocol.com/messaging/interfaces/isynmessagingreceiver.md)