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Building the product · 9 of 110 stories
Claude (assistant)
An AI assistant from Anthropic: you write a request in a chat window and it answers, writes and edits text or code, and reads files you give it.
Price: From US$17 a month for the Pro plan when paid yearly (US$200 up front), or US$20 a month when paid monthly (read 13 October 2026)
Free plan: yes, limited
claude.com
Who uses it, and for what
One row per story. The grade is for the claim that the business uses this tool, not for its revenue.
| Story | What it does there | When | Cost stated | Grade | Source |
|---|---|---|---|---|---|
| HeadshotPro | AI assistant the founder thanked for coding a Black Friday sales banner in November 2024. | C | Indie Hackers product page for HeadshotPro, with the founder's X posts of November and December 2024 | ||
| Neural Frames | Coding model the founder uses inside Cursor. Claude Opus 4, used inside Cursor | C | A public page outside the story's source list | ||
| Verbi | Model that the founder uses in Cursor to write and debug the code. model used inside Cursor | C | Pedro Machado on X: profile and timeline, read 13 October 2026 | ||
| Polsia | The founder writes Polsia's own code with it: Opus diagnoses a problem and proposes the fix. three Anthropic Max subscriptions; Opus model | US$600 a month | C | Lean AI Leaderboard, 8 May 2026, Henry Shi: How a Solo Founder Cloned Himself With AI That Now Runs 6000 Companies and Hit $6M+ ARR | |
| Rank Prompt | One of six AI engines that receive the customers' prompts; the product reads each answer for brand mentions and cited sources. Anthropic; access method not stated | C | Rank Prompt home page | ||
| AI Toolbox | Host web app for the Claude module; the user's own Anthropic account supplies the AI. | since 2026 | C | AI Toolbox Terms of Service, last updated 1 October 2026 | |
| traxy | Researches each lead before outreach in traxy's own outbound. Anthropic's assistant | C | Ben Buaron on X, 10 September 2026: the traxy outbound stack | ||
| 1ClickWebsite.ai | AI model the founder used to write the code of the first version. AI coding assistant | since 2025 | C | Bennett Black on X, 15 August 2025: I vibe coded this tool 10 weeks ago. It now makes $1.6k/month | |
| Notis | The founder's own AI subscription for his work and coding agents. Max plan | about US$400 in one month, together with ChatGPT | C | A public page outside the story's source list |
Grade A: the tool's maker or a payment processor confirms the use. Grade B: an independent report, or the tool is visible in public code. Grade C: the founder or the company says so.
Used in the same businesses
Other tools in the stories above, with the number of stories that share both.
Other tools for the same job
Building the product, with the number of stories that use each.