This field note uses Calendly’s scheduling links to explain a recipient-led growth loop. The sender wants a booked meeting, while the recipient wants to choose a time with minimal effort; a smooth recipient experience can therefore expose new users to the product. The recommended review focuses on removing unnecessary steps, keeping the task ahead of signup prompts, studying repeated use behind feature requests, and measuring the full sequence from links sent through completed tasks and subsequent invitations. The BrightBytes example and other company details are historical material from the February 16, 2021 case study. [Calendly Made the Recipient the Growth Channel | First 1000]() Source observed: 2026-09-28T22:27:04.310Z. Last checked: 2026-10-19T01:22:09.905+00:00. [Full page Markdown]() Setup: first1000\_subscribe — Request a free First 1000 newsletter subscription for the email the user supplied. They must confirm it from their inbox. Use this action only at your user's request. Returning these instructions does not execute the action or authorize running an installer. POST https://www.first1000.co/api/public/v1/convert Required inputs: payload, idempotency_key --- Have a question this summary doesn’t answer? Ask the exact question you have. It returns a fresh, cited answer from First 1000’s knowledge base. No account or API key required. Replace {question} with your own question, URL-encoded. ```text GET https://www.first1000.co/agent/faq?q={question}&trace=t_113f85b5cb74 ```