n8n

Prerequisites

A ScaleReach API key (get one here)

n8n's current MCP Client Tool documentation exposes an SSE Endpoint field. ScaleReach's documented remote endpoint uses Streamable HTTP, and compatibility with n8n's legacy SSE field has not been verified with a valid key. Use this setup only after confirming that your ScaleReach endpoint supports SSE.

Setup

Add the MCP Client Tool node to your workflow
SSE Endpoint: https://mcp.scalereach.ai/mcp/sr_live_YOUR_KEY_HERE
Authentication: None - your key is already in the URL
Connect the node to an AI Agent node, or call a specific tool directly

n8n discovers ScaleReach's tools (submit video, get status, get clips, schedule post, etc) automatically from the server.

Try it

Example workflow: Webhook trigger → AI Agent (with MCP Client Tool: ScaleReach) → "Clip this video and post the best clip to Instagram"

See all available commands and caption styles.

What you can do from n8n

Once n8n is connected, you work in plain language and it calls ScaleReach for you. Clipping requests cover submitting a YouTube link, checking processing status, listing the clips that were generated, getting a download link for a clip, reprocessing a video with different settings, and deleting a video together with its clips. Scheduling requests cover listing your connected social accounts, scheduling a post for later, posting immediately, editing a pending post's caption, rescheduling it, and cancelling it.

n8n will ask for the same choices as any other client: genre, aspect ratio (9:16, 16:9 or 1:1), clip length, caption style and any custom focus. A 30-minute video usually takes 3 to 5 minutes to process, so ask n8n to check the status rather than expecting clips at once. Download links returned for clips are signed and last one hour, so ask for a new link if one has expired. See all available commands and caption styles for the full list.

Keep your API key private

The key is part of the URL you pasted into n8n, so anyone who sees the URL can use your workspace and spend your processing minutes. Do not paste the URL into public chats, screenshots, issues or commits. A key is limited to the workspace it was created in. If a key leaks, open Workspace Settings → API Keys in the dashboard, delete it, and create a new one; then update the URL in n8n. See Authentication for how keys work.

Troubleshooting

n8n: n8n's MCP Client Tool talks to an SSE endpoint, while ScaleReach documents Streamable HTTP. If the node cannot list tools, that mismatch is the first thing to suspect rather than your key.
The server connects but every call fails with 401: the key is wrong, expired or was deleted. A valid key starts with sr_live_ followed by 48 hex characters, and the URL must be exactly https://mcp.scalereach.ai/mcp/ followed by the key with no spaces or line breaks.
A call fails with 402: the workspace has run out of processing minutes. Add minutes or change plan in the dashboard.
Clips are not ready yet: the video is still processing. Ask n8n for the status again in a minute or two.
Scheduling fails: connect at least one social account first, from Social → Connect Account in the dashboard.