SU

Substack

Substack is a platform that allows writers to publish newsletters.

10.1k usesUpdated Jul 30, 2025
Pseudonym
SubstackNewsletterWriterAPISearchDataEnrichment

About this module

Substack is a newsletter publishing platform; this module retrieves user profile data and subscriber statistics for a given handle.

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Rate limits

Pick the right plan for higher usage limits.

TierPer hourPer dayCooldownAction
Guest2 req/h3 req/day10sCurrent plan
Free10 req/h20 req/day5sSign up
Standard60 req/h200 req/day2sSee pricing
Pro100 req/h500 req/day2sSee pricing
Advanced500 req/h2000 req/day0sSee pricing

Frequently Asked Questions

What impacts module results and how to interpret changes across executions.

Results depend on source platform availability, anti-automation controls, and temporary service limits. A valid target can still return partial or empty data when the upstream platform is rate-limited or unavailable.