n8n-nodes-solmarrow

SolMarrow nodes for n8n: schedule and publish social media posts from your workflows, and start workflows when a post is scheduled, published or fails.

• SolMarrow: create posts (draft, scheduled or published right away), upload images and videos, list posts, accounts, media and workspaces, delete posts, and read post results.
• SolMarrow Trigger: starts a workflow on post.scheduled, post.published or post.failed. Every delivery is signed, and the node checks the signature.

Installation · Credentials · Operations · Trigger · Example · Limits · Resources

Installation

In n8n, open Settings → Community Nodes → Install, enter n8n-nodes-solmarrow, and confirm. See n8n's community nodes guide for other ways to install.

Credentials

The nodes sign in with your SolMarrow account (OAuth 2.0). You make a small app in SolMarrow once, then connect it from n8n:

1. In n8n, create a SolMarrow OAuth2 API credential and copy the OAuth Redirect URL it shows (it ends in /rest/oauth2-credential/callback).
2. In SolMarrow, open Settings → Apps and AI agents → Your own apps and create an app. Paste the redirect URL as its redirect address.
3. SolMarrow shows a client ID and a client secret once. Paste both into the n8n credential.
4. Click Connect my account, sign in to SolMarrow if asked, choose the workspaces n8n may use, and allow.

Leave SolMarrow URL as https://app.solmarrow.com.

You can see and remove the connection at any time in SolMarrow under Settings → Apps and AI agents. Removing it stops n8n's access and turns off its triggers.

Operations

| Resource | Operation | What it does | | --------- | --------- | -------------------------------------------------------------------------------------------------- | | Post | Create | Save a draft, schedule a post (at least 5 minutes ahead), or publish now | | Post | Get | One post with each account's status, link, and latest results | | Post | Get Many | Posts, newest first; filter by status and time | | Post | Delete | Delete a draft, scheduled or failed post | | Media | Upload | Add an image or video from an earlier node's binary data (up to 90 MB) or from a public https link | | Media | Get Many | Recent files in the media library | | Account | Get Many | Connected social accounts and each network's posting rules | | Workspace | Get Many | Your workspaces and their time zones | | Analytic | Get | Likes, comments, shares and views of published posts (last 30 days unless you set a range) |

Creating posts

• When: Save as Draft, Schedule (pick Publish At), or Publish Now. Times without an offset use the workflow's time zone.
• Accounts: required for Publish Now and Schedule; choose from the list, or pass IDs from Account → Get Many. For a draft they are optional, under Additional Fields.
• Media IDs: upload with Media → Upload first, then pass the media_id values, separated by commas, in order.
• Text per Account: different text for some accounts.
• Network Settings (JSON): settings some networks need, keyed by account ID, for example {"<youtube account id>": {"title": "Launch video", "privacy": "public"}}. YouTube takes title, privacy, madeForKids; Pinterest boardId, title, link; Dribbble title, tags; Tumblr tags; WordPress, DEV and Ghost title, tags, status.

SolMarrow checks each post against the network's rules (length, number of images, video, required settings) before it accepts it, and the node shows SolMarrow's message when something needs fixing.

TikTok posts need choices made in SolMarrow's own composer, so for TikTok accounts save a draft and finish it in SolMarrow.

Trigger

Choose the workspace and the events. When the workflow is activated, the node subscribes to those events; when it is deactivated, it unsubscribes.

Each event is one item:

{
  "id": "1042",
  "event": "post.published",
  "created_at": "2026-11-02T09:30:04.112Z",
  "workspace_id": "…",
  "post": {
    "id": "…",
    "text": "We just shipped…",
    "status": "published",
    "scheduled_at": "2026-11-02T09:30:00.000Z",
    "published_at": "2026-11-02T09:30:03.871Z",
    "accounts": [
      { "account_id": "…", "network": "linkedin", "name": "Samero", "status": "published", "url": "https://www.linkedin.com/…", "error": null }
    ]
  }
}

post.published also covers posts that went out to some of their accounts but not all (status is partially_published; each account has its own status and error).

SolMarrow must be able to reach your n8n at a public https address, so the trigger doesn't work with n8n running only on localhost. Use n8n Cloud, a server with a domain, or a tunnel.

Example

A ready-made workflow to try every action: import examples/solmarrow-demo.workflow.json (n8n → Workflows → ⋯ → Import from file), pick your SolMarrow credential, and run it. It saves a draft, reads it back, uploads an image from a link, lists drafts and deletes the demo draft.

Post every new RSS item to LinkedIn and X, one hour later:

1. RSS Feed Trigger
2. SolMarrow → Post → Create: Text {{ $json.title }} {{ $json.link }}, When Schedule, Publish At {{ $now.plus({ hours: 1 }) }}, Accounts LinkedIn and X.

Tell a Slack channel when a post fails:

1. SolMarrow Trigger: Events Post Failed
2. Slack → Send Message: Post failed: {{ $json.post.text }}

Limits

• 120 requests a minute per connection.
• Apps and agents can create up to 300 posts a day per person.
• Uploads from binary data: up to 90 MB a file. Larger files: put them at a public https link and use the URL option.
• Your SolMarrow plan's limits (accounts, storage) apply as usual.

Resources

• SolMarrow API documentation
• n8n community nodes documentation
• Help: [email protected]

Development

npm install
npm run lint
npm test        # builds, then runs the tests in test/
npm run dev     # n8n with this package loaded, at http://localhost:5678

Releases are published from GitHub Actions with an npm provenance statement through npm trusted publishing (no tokens): bump the version in package.json, push to main, then git push origin main:release.

License

MIT