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Directory / Planning, Research & Automation / newsletterapi
newsletterapi
Our verdict: A read-only API and MCP server built from your public RSS feed and the export you download yourself: no password, session cookie or browser extension. The Writer plan adds full-archive search for AI assistants and automatic Markdown/HTML backups (with images) to GitHub, Google Drive, Dropbox or S3. It's new and run by an unnamed independent team, and access is set up by email invite rather than instant signup, so try the free tier first.
Best for
Letting Claude or ChatGPT search your whole Substack archive, and backing up every post with images to your own storage
Pricing
Free (1 publication, recent posts from your public feed, limited API/MCP calls); Writer $9/mo (full archive from your export, MCP archive search, automatic backups); Pro $29/mo; Agency/Developer $79/mo. Priced per publication.
Source: official site (newsletterapi.io and newsletterapi.io/pricing; "You are never charged without confirming by email first")
Website
Last checked
2026-10-30
Note: Independent; not affiliated with Substack. Read-only by design: it can't publish posts or Notes.
Disclosure: We have no affiliate relationship with this vendor. StackKit is independent and not affiliated with Substack Inc. Spot an error? Email hello@stackkit.ink.
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