devto

Building a Plugin-Free Newsletter Popup on WordPress: Custom REST Endpoint Mailchimp API v3

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signal score

⏳ Too early

trajectory — needs a few more hourly snapshots

7-day window (free)

Not enough history yet — the trend line fills in as snapshots accrue (hourly).

buildingpluginfree newsletter popupwordpress

Embed a live signal badge

[![Signalcrest signal](https://www.signalcrest.app/api/badge/dev%3A4083674)](https://www.signalcrest.app/topic/dev%3A4083674)

Drop this in a README or blog post — it updates automatically as the score moves.