eth_unsubscribe | Conduit Documentation

WebSocket required: eth_unsubscribe is only available over a persistent WebSocket connection (wss://). Starting August 4, 2026 at 12:00 PM PST, WebSocket connections require an authenticated Conduit account — append an API key to your WSS URL; anonymous connections are rejected. It cannot be used over HTTP, and the subscription ID is only valid on the same WebSocket connection that created it via eth_subscribe.

Cancels an existing subscription by subscription ID.

⚡ Compute Units: 10 CU

WebSocket required: eth_unsubscribe is only available over a persistent WebSocket connection (wss://). Starting **August 4, 2026 at 12:00 PM PST**, WebSocket connections require an authenticated Conduit account — append an API key to your WSS URL; anonymous connections are rejected. It cannot be used over HTTP, and the subscription ID is only valid on the same WebSocket connection that created it via eth_subscribe. Cancels an existing subscription by subscription ID. ⚡ Compute Units: [10 CU](https://docs.conduit.xyz/rpc-nodes/information/compute-units)

Request

This endpoint expects an object.

subscriptionIdstringRequiredformat: "^0x[0-9a-fA-F]+$"

Opaque subscription ID returned by eth_subscribe.

Response

True if the subscription was successfully cancelled, otherwise false

$	curl -X POST https://rpc.plume.org/YOUR_API_KEY \
>	-H "Content-Type: application/json" \
>	-d '{
>	"jsonrpc": "2.0",
>	"method": "eth_unsubscribe",
>	"params": [
>	"0x9cef478923ff08bf67fde6c64013158d"
>	],
>	"id": 1
>	}'