Substack Posts Scraper — Pay Per Result

Scrape public Substack publication archives through the archive JSON API ({subdomain}.substack.com/api/v1/archive). Paste subdomains or publication URLs — multi-publication batch in one run.

Store search keywords: Substack scraper · newsletter archive · substack.com API · publication posts · newsletter scraper

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Why this Actor

Need	What you get
Many newsletters at once	Batch publication subdomains / URLs in one run
Clean structured posts	Title, subtitle, slug, URL, dates, audience, reactions, comments
Failures that shouldn’t bill	404 / empty publications / bad inputs → not charged
Low cost	HTTP-only (no Playwright); PPE priced from measured unit economics

Public archive API only. No login. No paywalled content beyond what the API exposes.

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Input

{
  "publications": ["platformer", "https://platformer.substack.com"],
  "maxItemsPerPublication": 25,
  "includeBody": false
}

Accepted publication values:

• Subdomain: platformer
• Publication URL: https://platformer.substack.com
• Post URL: https://platformer.substack.com/p/some-slug (extracts subdomain)

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Output fields

Field	Description
id	Substack post id
title / subtitle	Post headline fields
slug	URL slug
url	Canonical or constructed post URL
postDate	Publication timestamp
audience / type	Audience and post type when present
description / truncatedBody	Preview text (always included)
bodyHtml	Full HTML when includeBody is true
reactionCount / commentCount	Engagement metrics
publication	Subdomain used for the request

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Pricing

Pay-per-event for each delivered post row.

• Empty publications, 404 subdomains, and parse failures → not charged
• Keep includeBody false unless you need full HTML (much larger payloads)

~$0.50 / 1,000 posts on the Store pricing tab (HTTP-only; empty publications free).

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Limitations (honest)

• Only public archive posts the API returns — not private drafts or full paywalled bodies unless exposed
• Pagination is offset-based; very large archives may need higher maxItemsPerPublication
• Custom domains work when the subdomain is in the URL or passed directly
• body_html is often null in listing responses; enable includeBody when the API includes it

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Issues / feature requests: use the Actor Issues tab.