Move from bundle.social to PostWire in an afternoon

bundle.social — their docs' example

curl -X POST https://api.bundle.social/api/v1/post \
  -H "Content-Type: application/json" \
  -H "x-api-key: $BUNDLE_API_KEY" \
  -d '{
    "teamId": "team_123",
    "title": "Launch post",
    "status": "SCHEDULED",
    "postDate": "2026-06-01T15:00:00.000Z",
    "socialAccountTypes": ["FACEBOOK", "INSTAGRAM"],
    "data": {
      "FACEBOOK": { "type": "POST", "text": "We are live.", "uploadIds": ["upload_image_123"] },
      "INSTAGRAM": { "type": "POST", "text": "We are live.", "uploadIds": ["upload_image_123"], "altText": "Product dashboard screenshot" }
    }
  }'

From info.bundle.social, read Oct 9, 2026. Their docs show this body inside a TypeScript fetch() call; here as cURL with the same body.

PostWire — REST (the converter's output)

curl -X POST https://postwire.io/api/schedule \
  -H "Authorization: Bearer $POSTWIRE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "platforms": [
    "facebook",
    "instagram"
  ],
  "text": "We are live.",
  "run_at": "2026-06-01T15:00:00.000Z",
  "label": "Launch post"
}'

your key from the pasted command is not carried over: the output uses $POSTWIRE_API_KEY FACEBOOK: uploadIds are bundle.social uploads — pass the files' public URLs in "media" (or upload them to PostWire: POST /api/media/upload-url) INSTAGRAM: uploadIds are bundle.social uploads — pass the files' public URLs in "media" (or upload them to PostWire: POST /api/media/upload-url) teamId (a bundle.social team) → brand_id: create one PostWire brand per client (POST /api/brands) and send its id; with a single brand you can leave brand_id out run_at is in the past: PostWire refuses a schedule in the past — set a future time

PostWire — n8n node

PostWire node
  Resource:   Post
  Operation:  Schedule
  Networks:   facebook, instagram
  Content:    Same Text on Every Network
  Text:       We are live.
  When:       At a Specific Time
  Publish At: 2026-06-01T15:00:00.000Z
  Options → Brand: the client's brand

PostWire — MCP (Claude, ChatGPT, any agent)

schedule_post({
  "platforms": [
    "facebook",
    "instagram"
  ],
  "text": "We are live.",
  "run_at": "2026-06-01T15:00:00.000Z",
  "label": "Launch post"
})

# or ask your agent: "Schedule this on Facebook and Instagram for 2026-06-01T15:00:00.000Z"