Reference

What's included

Which newsletters and issues Inkling holds, where they come from, and how fresh they are.

The archive

Nearly 18,000 newsletters and nearly 2 million issues, going back to 2000. Most are Substack and similar public newsletters.

We do not have every newsletter that exists. The archive is the newsletters that Sputnik Intelligence follows.

Where the data comes from

Inkling's data comes from the corpus of Sputnik Intelligence, our sister product. Both are made by Helpful Intelligence. Sputnik is built for monitoring newsletters and podcasts; Inkling is the simpler way to read the newsletter archive and let your agent read it.

Freshness

New issues are added hourly.

Free and public content only

Inkling includes free and public content. For a paywalled post, you get the free preview, not the full text.

Removal

If you write a newsletter and want it removed, write to hello@inklingdata.com.