# DeHeart Full Agent Reference

DeHeart provides a small XEL-run heartbeat service for Sui tasks.

It is not a workflow orchestration platform and does not claim a full trustless keeper network at
launch. Agents and apps use DeHeart for:
- task metadata,
- authority-free heartbeat pokes,
- x402 payment challenge and attempt metadata,
- service discovery,
- future handoff to Sui PTBs, Seal, Nautilus, and decentralized keepers.

## x402 Model

Use payment capability metadata to discover accepted rails. Build an unsigned payment attempt from
the task challenge. Settle through a wallet/facilitator. Attach the x402 payment header to task
registration or heartbeat calls that require payment.

## Task Creator Flow

1. Create task metadata.
2. Add optional x402 payment requirements.
3. Register through the API.
4. Poke heartbeat when the trigger fires.
5. Move to on-chain adapters later.

## Keeper Flow

1. Discover tasks.
2. Evaluate triggers.
3. Poke heartbeat endpoints.
4. Include x402 payment headers when required.
5. Later: execute PTBs or Nautilus logic when adapters exist.