We offer advertising opportunities for useful products aimed at founders, product people, and growth teams. Prospective advertisers can [plan a campaign](https://www.first1000.co/advertise/ai-tool-campaign-guide) or submit a note with their website, work email, company or product, campaign type, budget or timing, and campaign details. [Advertise with First 1000]() Source observed: 2026-09-28T22:27:03.842Z. Last checked: 2026-10-08T01:42:32.024+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_1291118d7f25 ```