Substack · Pricing Plans

Substack Plans Pricing

Substack Plans Pricing is the machine-readable pricing-plan profile for Substack on the APIs.io network, conforming to the API Commons Plans specification.

It defines 2 plans, with named plans including Publishing, Paid subscriptions.

Tagged areas include Newsletters, Publishing, Creator Economy, Subscription, and Email.

2 Plans
View Source
NewslettersPublishingCreator EconomySubscriptionEmailPodcastingNotesMediaIndependent MediaPaid ContentMCPAgentsRSSAnalytics

Plans

Publishing

Publishing on Substack is free regardless of subscriber count. No platform fee until paid subscriptions are enabled.

Paid subscriptions

Substack takes 10% of each paid-subscription transaction. Stripe's fees apply on top and are charged by Stripe, not Substack.

Work with this as data

Every plan here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for plans

4 MCP tools reach this
  • find_plansBrowse and filter every plan in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This plan 
curl "https://apis.io/api/v1/plans/substack-plans-pricing"
All plans 
curl "https://apis.io/api/v1/plans?limit=25"

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A second provider on the same verified email joins the account you already have.