Submit a signed Core action¶

POST /api/hypercore/agent/submit

Forward a user-signed HyperCore action (an approval, vault transfer, …). Assembles {action, nonce, signature} from the plan and relays it on the hypercore chain. Returns a txId.

Authentication

Send your API key in the api-key header.

Responses

Status	Description
`200`	Relayed; returns {txId}.

200 response

{
  "success": true,
  "data": {
    "txId": "68fa\u2026"
  },
  "timestamp": "2026-07-31T00:00:00.000Z"
}