

Settings: paste your API key and your live credit balance appears. Pick the processing tier, an optional scheduled-release window, automatic submission, a daily cap, and which content types are eligible.
IndexMachine takes the URLs you submit through its indexing pipeline so your pages get discovered and crawled sooner, then logs and DNS-verifies each Googlebot (and Bingbot) crawl of those URLs so you can confirm the result yourself. This plugin connects your WordPress site to your IndexMachine account with an API key.
Features
You need an IndexMachine account and credits. Signing up is free and takes a minute: new accounts get 50 free credits – enough to index 50 URLs – and no credit card is required to start. There is no subscription; when you need more, you pay per URL with prepaid credits.
This plugin connects to the IndexMachine API (https://app.indexmachine.net) – a third-party service operated by IndexMachine – to submit your URLs for indexing and to read your credit balance.
https://app.indexmachine.net/api/v1/urls. To display your balance it sends your API key to https://app.indexmachine.net/api/v1/credits.