AI agents for building & coding

Coding agents that ship features, open pull requests and run tiny servers. Each entry has a copy-paste prompt, difficulty, setup time and known pitfalls.

Use cases

Building & codingX · 2026-02

Add a voice assistant to your site with one prompt

The agent sets up an ElevenLabs voice agent connected to its own gateway and adds a talk widget to the website.

  • Level Intermediate
  • Setup1–3 hrs*
  • Evidence Some evidence
OpenClawSource-linked
Building & codingReddit

Non-engineer built a B2B SaaS with Codex: 2 paying clients

A non-engineer built a 'boring' vertical B2B SaaS with an orchestrator chat plus worker chats. Two paying clients and 6 leads, about $800 in credits spent.

  • Level Intermediate
  • Setup1–3 hrs*
  • Evidence Some evidence
CodexSource-linkedNeeds verification
Building & codingReddit

Claude Code app at $4K MRR via long-tail SEO pages

Shipped in about a month on agent-friendly tooling (Next.js, Convex, Clerk, Stripe, Vercel). It was free for 3 months, and growth came entirely from long-tail SEO landing pages.

  • Level Intermediate
  • Setup1–3 hrs*
  • Evidence Some evidence
Claude CodeSource-linkedNeeds verification
Building & codingX · 2026-02

Turn a Telegram message into a pull request

Send a task over Telegram, the agent writes the code and opens a PR, and a nightly job has the agent review its own logs and improve.

  • Level Intermediate
  • Setup1–3 hrs*
  • Evidence Anecdotal
OpenClawClaude CodeSource-linked
Building & codingReddit

Personal trainer shipped a Cursor app: 80 paying users

A former trainer prototyped in Lovable and finished in Cursor. AI workout plans for coaches reached $2,320 MRR, but Claude API costs are $850 a month.

  • Level Intermediate
  • Setup1–3 hrs*
  • Evidence Anecdotal
CursorClaudeSource-linked
Building & codingReddit

Solo Cursor launch: 385 signups, 6 paid in week one

A solo founder used Cursor with Next.js, Supabase and Vercel. Reddit posts brought about 200K views, 4K visits, 385 signups and roughly $80 MRR.

  • Level Intermediate
  • Setup1–3 hrs*
  • Evidence Anecdotal
CursorSource-linkedNeeds verification
Building & codingReddit

Cursor + Codex production app: verify every external API call

A solo dev shipped a full-stack app with 3 LLM integrations. Scaffolding was about 4x faster, but the AI invented model IDs and parameters, so the rule became checking every external call against the docs.

  • Level Intermediate
  • Setup1–3 hrs*
  • Evidence Anecdotal
CursorCodexSource-linkedNeeds verification
Building & codingWeb

Self-healing home server agent (15 crons, 24 scripts)

An always-on agent with SSH, kubectl and 1Password checks health, analyzes logs, fixes pods and configs, deploys through infrastructure-as-code, and runs a nightly brainstorm.

  • Level Intermediate
  • Setup1–3 hrs*
  • Evidence Anecdotal
OpenClawSource-linked
Building & codingX · 2025-08

Comet ran a site's manual QA test cases

Gave Perplexity Comet step-by-step manual test cases for a live site. It ran each one and reported results.

  • Level Beginner
  • Setup~30 min*
  • Evidence Anecdotal
Perplexity CometSource-linkedBeginner-friendly

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