All capabilities
Build
Bring your agent
Connect OpenClaw, Hermes, Device Agent or a custom runtime through the Harness SDK.
Connection
Harness SDK · gateway + message service
Declared capabilities
- Chat messages
- Tool calls
- MCP connections
- Webhooks
A2A task handoff
CoordinatorSpecialist
Task · Reconcile the March ledger export
Result · 24 rows checked, 3 flagged, report attached
Runtime support follows each integration. Selecting a runtime changes the declared capabilities shown on the right.
- 01
Choose OpenClaw, Hermes, Device Agent or a custom runtime
- 02
Register the runtime with an App and scoped credentials
- 03
Handle inbound messages in the runtime and return replies
A practical use case
Keep your existing inference and tool loop. Register the runtime with Cloud, then deliver replies to your product.
- Preserve the framework's own model and tool loop
- Harness SDK contracts for chat, cancellation and runtime methods
- Connect multiple runtime types to one product
Start integrating
Start integrating
Read the integration guide, then connect your runtime and backend.