Substack

Substack Developer API

Narrowly scoped official API that returns public Substack profile data for a given LinkedIn handle. Access requires accepting the Developer API Terms of Use, applying via form, and generating a token from the Developer API section of account settings. Only profiles meeting Substack's authenticity thresholds are returned.

GitHub

Documentation

📖
Documentation
https://support.substack.com/hc/en-us/articles/45099095296916-Substack-Developer-API
📖
APIReference
https://support.substack.com/hc/en-us/articles/45099095296916-Substack-Developer-API
📖
Authentication
https://raw.githubusercontent.com/api-evangelist/substack/refs/heads/main/authentication/substack-authentication.yml

Other Resources

🔗
TermsOfService
https://substack.com/api-tos
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/substack/refs/heads/main/apis.yml

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API entry from apis.yml

apis.yml Raw ↑ 
name: Substack Developer API
description: Narrowly scoped official API that returns public Substack profile data for a given LinkedIn
  handle. Access requires accepting the Developer API Terms of Use, applying via form, and generating
  a token from the Developer API section of account settings. Only profiles meeting Substack's authenticity
  thresholds are returned.
humanURL: https://support.substack.com/hc/en-us/articles/45099095296916-Substack-Developer-API
baseURL: https://substack.com
tags:
- Profile
- LinkedIn
- Read Only
- Gated
tags_raw:
- Profile
- LinkedIn
- Read-Only
- Gated
properties:
- type: Documentation
  url: https://support.substack.com/hc/en-us/articles/45099095296916-Substack-Developer-API
- type: APIReference
  url: https://support.substack.com/hc/en-us/articles/45099095296916-Substack-Developer-API
- type: TermsOfService
  name: Substack Developer API Terms of Use
  url: https://substack.com/api-tos
- type: Authentication
  url: authentication/substack-authentication.yml