Crawl4AISubstackResearch & public data

A Substack publication's latest posts

crawl4ai.substack.publication.posts

The latest posts of a Substack publication, from its public archive: title, subtitle, link, date, author, likes, comment count, whether it is behind the paywall, and word count. `publication` is the host (name.substack.com or a custom domain) or any of its URLs; `limit` up to 50. Columns: title, subtitle, url, date, author, likes, comments, paywalled, words.

Price: $0.00015/successAt provider cost
Success rate: 100%Last 30 days · 167 calls
Latency p50: 590 msp95 5.5 s
Last verified: Oct 11, 2026Verified working

POSThttps://toolswitch.dev/v1/tools/crawl4ai.substack.publication.postsPreview

Try onlineComing soonProvider docs ↗

Uses platform quota
Synchronous response
Reads public data

Parameters

This tool has no parameters. See provider docs ↗ Provider docs

Code samples

Replace $TOOLSWITCH_KEY with the key you created in the console.

Preview

curl -X POST 'https://toolswitch.dev/v1/tools/crawl4ai.substack.publication.posts' \
  -H "X-Toolswitch-Key: $TOOLSWITCH_KEY" \
  -H "Content-Type: application/json" \
  --data-raw '{"publication":"lennysnewsletter.com"}'

import os
import json
import requests

response = requests.request(
    "POST",
    "https://toolswitch.dev/v1/tools/crawl4ai.substack.publication.posts",
    headers={"X-Toolswitch-Key": os.environ["TOOLSWITCH_KEY"]},
    json=json.loads("{\"publication\":\"lennysnewsletter.com\"}"),
)
response.raise_for_status()
print(response.text)

const response = await fetch("https://toolswitch.dev/v1/tools/crawl4ai.substack.publication.posts", {
  method: "POST",
  headers: {
    "X-Toolswitch-Key": process.env.TOOLSWITCH_KEY ?? "",
    "Content-Type": "application/json",
  },
  body: JSON.stringify(JSON.parse("{\"publication\":\"lennysnewsletter.com\"}")),
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
console.log(await response.text());

This gateway API is in preview; its URL and authentication may change. The example parameters are sample data. Calls are billed at $0.00015/success, including the service fee.