Post to Lemmy automatically

01

Connect Lemmy

1. Use an account on your Lemmy server that may post in the community.
2. In the dashboard, enter the server, the community and the login.
3. Reelspan signs in once to get a token; your password isn’t kept.

Posting for clients? Send them a connect link so they connect their own Lemmy account without a Reelspan login.

02

Get an API key

In the dashboard, open Developers → API keys and create one. Keep it in an environment variable such as REELSPAN_KEY; never in code you share.

03

Post with one request

Send the video as a file, or as a public URL like below. Add more platform[] fields to post the same thing everywhere at once.

curl -X POST https://api.reelspan.com/v1/posts/video \
  -H "Authorization: Bearer $REELSPAN_KEY" \
  -F user=my-brand \
  -F "platform[]=lemmy" \
  -F "video=https://example.com/clip.mp4" \
  -F "title=Your body" \
  -F "lemmy_description=…"

const form = new FormData();
form.append('user', 'my-brand');
form.append('platform[]', 'lemmy');
form.append('video', 'https://example.com/clip.mp4');
form.append('title', 'Your body');

const res = await fetch('https://api.reelspan.com/v1/posts/video', {
  method: 'POST',
  headers: { Authorization: `Bearer ${process.env.REELSPAN_KEY}` },
  body: form,
});
console.log(await res.json());

import os, requests

res = requests.post(
    "https://api.reelspan.com/v1/posts/video",
    headers={"Authorization": f"Bearer {os.environ['REELSPAN_KEY']}"},
    files=[
        ("user", (None, "my-brand")),
        ("platform[]", (None, "lemmy")),
        ("video", (None, "https://example.com/clip.mp4")),
        ("title", (None, "Your body")),
    ],
)
print(res.json())

lemmy_title sets Lemmy’s title (up to 200 characters), separate from the text.

04

Lemmy options

lemmy_title

The post title, up to 200 characters.

lemmy_description

The body.

• Any Lemmy server and community you can post in.
• One image or video per post.

Every field, with its limits: the docs.

05

Schedule it and check the result

• Add scheduled_date (ISO 8601) and timezone to post later, or add_to_queue=true to take the next slot of your posting schedule.
• The response has Lemmy’s status and the post’s link. For big files send async_upload=true and check GET /v1/posts/status?request_id=…, or get a signed webhook when it’s live.
• If Lemmy refuses a post, the error says why in plain words, and you can retry just that network.

06

Without code

• n8n, Make, Zapier or Airtable: the same request from a workflow.
• Claude, ChatGPT or any MCP client: ask “post this to Lemmy”.
• The dashboard: write once, check Lemmy’s limits as you type, post now or schedule.

07

Ideas

• Share clips and articles with your Lemmy community.

More on Lemmy: what you can post there. Other networks: all upload guides.