> ## Documentation Index
> Fetch the complete documentation index at: https://hypernode-docs.polynode.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Exchange Passthrough

Forward a pre-signed action directly to HyperLiquid's `/exchange` endpoint. Use this when you handle EIP-712 signing yourself and just need hypernode to proxy the request.

No authentication required. The payload is forwarded as-is.

## Example

```bash theme={null}
curl -X POST https://hyper.polynode.dev/exchange/raw \
  -H "Content-Type: application/json" \
  -d '{
    "action": { "type": "order", ... },
    "nonce": 1234567890,
    "signature": { "r": "0x...", "s": "0x...", "v": 27 },
    "vaultAddress": null
  }'
```

## Use cases

* You have your own signing implementation and want to use hypernode as a proxy
* Integrating with existing SDKs that handle signing
* Actions not yet supported by the named trading endpoints