1Request
stringRequired

Substack slug or a declared custom publication host (www.astralcodexten.com, www.lennysnewsletter.com, www.noahpinion.blog). Other custom domains are not supported by this program.

number

limit

number

offset

string

new = newest first, top = most popular, pinned = editor pins.

5 credits
Codefollows the fields above
const result = await firecrawl.scrape({
  alexandria: {
    provider: "substack-com",
    capability: "newsletters/archive",
    options: {
      limit: 1,
      publication: "www.astralcodexten.com",
    },
  },
});
2Response example

This is a sample shape. Press Run to see live data from Substack.

{
  "count": 1,
  "has_more": true,
  "limit": 1,
  "next_offset": 1,
  "observed_at_ms": 1789435777564,
  "offset": 0,
  "paywalled_count": 0,
  "posts": [
    {
      "audience": "everyone",
      "authors": [
        {
          "bio": null,
          "handle": "astralcodexten",
          "id": "12009663",
          "name": "Scott Alexander",
          "photo_url": "https://substackcdn.com/image/fetch/f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F7b500d22-1176-42ad-afaa-5d72bc36a809_44x44.png"
        }
      ],
      "comments": 35,
      "cover_image": "https://substack-post-media.s3.amazonaws.com/public/images/017c9c94-ad3d-490e-90b4-1306c0e97122_575x339.png",
      "description": "...",
      "free_preview_sent": false,
      "id": "214878061",
      "paywalled": false,
      "podcast_duration_seconds": null,
      "podcast_url": null,
      "preview_text": null,
      "publication_id": "89120",
      "published_at": "2026-09-14T23:56:40.626Z",
      "reactions": 94,
      "restacks": 2,
      "section": null,
      "slug": "king-ludd",
      "subtitle": "...",
      "tags": [],
      "title": "King Ludd",
      "type": "newsletter",
      "url": "https://www.astralcodexten.com/p/king-ludd",
      "wordcount": 2755
    }
  ],
  "publication": {
    "host": "www.astralcodexten.com",
    "url": "https://www.astralcodexten.com"
  },
  "query": null,
  "sort": "new",
  "source": "https://www.astralcodexten.com/api/v1/archive?sort=new&search=&offset=0&limit=1"
}
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