Install and connect

Install the node

In n8n, open Settings → Community nodes, select Install, and enter:

@getopenpost/n8n-nodes-openpost

Your n8n runtime must use Node.js 22.22 or newer.

Create an OpenPost credential

Create a developer token in OpenPost under Settings → Personal → Developer. Use a workspace-bound api:write token for a workflow that creates or changes content. Name the token after the n8n workflow or instance so it is easy to revoke later.

Add an OpenPost API credential in n8n:

• Base URL: https://app.openpo.st, or the public origin of your self-hosted instance. Do not append /api or /api/v1.
• API Token: the OpenPost developer token.

If n8n runs in Docker, localhost means the n8n container. Use the OpenPost Compose service name when both services share a network, or host.docker.internal when OpenPost runs on the host.

Test access

Import the package's list-workspaces example, select the OpenPost credential, and run it. The returned items show which workspaces the token can access.

Do this read-only check before adding write actions. A workspace-bound token cannot write to another workspace even when a node receives its ID from earlier input.