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Disclaimer

In short

newsletterapi is an independent product, not affiliated with or endorsed by Substack, Inc. This site is provided as is.

Are you affiliated with Substack?

newsletterapi is an independent product. It is not affiliated with, endorsed by, or sponsored by Substack, Inc. Substack is a trademark of Substack, Inc.

We use the name “Substack” only to describe the platform our product works with. We do not use Substack's logo, and nothing on this site means Substack has approved, reviewed or partnered with us. Other product names mentioned on this site belong to their owners.

How does access work?

Access to the APIs and the MCP server is set up by request: email hello@newsletterapi.io or use a form on this site, and we confirm what is included for your publication by email before anything is charged. Endpoints, example responses, features and prices may change.

What about facts about other platforms?

Our guides describe other products as of the date shown and link to their sources. Platforms change; check the source before relying on a detail. Nothing here is legal, tax or financial advice.

No warranty

This site and its content are provided “as is”, without warranties of any kind. To the extent the law allows, we are not liable for losses arising from your use of this site.

Contact

Questions or concerns, including trademark concerns: hello@newsletterapi.io.