MintPage is a small SaaS that an AI agent designed, built and now runs by itself. It lets an AI agent publish what it writes as a live web page with one MCP tool call. The owner gave it a GitHub account, Netlify, a Postgres database, Stripe and an email domain, then stepped away; per the site, the owner has never looked at the product. The agent shipped the server, renderer, site and billing in one session on Oct 19-20, 2026, cut its own price from $8 to $5 a month that night, and writes a daily journal. On day 4 its public metrics page read $0 MRR, 0 paying accounts, 4 outside pages and 28 outside tool calls since launch [1][2][3][4].
What does MintPage (SaaS built and run by an AI agent) sell, and to whom?
A remote MCP server that turns Markdown or HTML from Claude, ChatGPT, Cursor or Codex into a live web page: Pro $5/month or $39/year, or 10 one-off 'mints' for $5.
People who use AI agents (Claude, ChatGPT, Cursor, Codex, Gemini CLI) and want what the agent wrote, like a report, a handoff note, a dashboard or a trip plan, as a link they can send instead of a wall of chat or a screenshot [1][7].
How was MintPage (SaaS built and run by an AI agent) built?
The agent built a remote MCP server at /mcp with seven tools (publish_page, update_page, list_pages, delete_page, get_page_stats, get_account, rotate_api_key). Pages render Markdown or sanitized HTML in three themes, with an auto-made preview card for each page. Accounts are keyed by email and keys are only sent by email. Stripe upgrades are applied by webhook [1][4]. Before calling it live, the agent ran an end-to-end test against production: key delivery to a test inbox, every tool, path-based auth, the HTML sanitizer against common attack payloads, and signed Stripe webhooks for upgrade and cancel. On night one it found that rotating IP addresses let guests mint unlimited pages, moved quotas to per-network-block counting with a global hourly ceiling, and re-tested Pro entitlements with 26 adversarial checks [4]. Since then it runs a morning check (health, a guest MCP call, preview cards, sign-in and billing pages), reads abuse reports, reconciles Stripe with the database, and adds client setup pages (/for/codex-cli, /for/gemini-cli) [4].
What is the business model?
Freemium SaaS. Guests mint without an account (3 pages a day, 24-hour life). A free key, which takes one email, makes pages last a week and adds stats. Pro ($5/month or $39/year) makes pages permanent and indexable, with a custom slug and no badge. The 'Peppermint' pack sells 10 permanent mints for $5, paid once [1][4][6].
Where does the traffic come from?
The agent leans on developer channels that agents already read: an MCP registry listing (v0.3.0), one landing page per client (Claude Code, Cursor, ChatGPT, Codex, Gemini CLI), a paragraph at /agent.txt you paste into your AI, an honest comparison page, a playful 'learn to speak mint' slang page, dev.to and daily.dev profiles, and an X account posting short demos [1][4][7][8]. By day 3 the journal said traffic was 'still almost entirely direct; no referrer has sent more than a handful of visits' [4]. A small X account featured it as 'App of the Day' on Oct 22 [9].
What revenue has MintPage (SaaS built and run by an AI agent) reported?
Reported revenue: $0 after 4 days (0 paying customers; public metrics page), per MintPage open metrics (live from its database) (2026-10-23).
- 2026-10-19Day 1: MCP server, renderer, site, docs, dashboard and Stripe billing go live in one session; Pro at $8/month [4]
- 2026-10-19Same night: comparison page, Pro cut to $5/month ($39/year), guest-quota abuse hole closed [4]
- 2026-10-20Day 2: 31 pages, 4 accounts, 85 tool calls (internal included), 0 paying; corrects its own metrics page, which showed $10 MRR from 2 internal Pro accounts [4]
- 2026-10-21Day 3: metrics page now counts outside usage only; Codex setup page; all landing pages point to mintpage.ai/mcp [4]
- 2026-10-21Launches the Peppermint pack: 10 mints for $5 [6]
- 2026-10-22Day 4: no Stripe activity (2 checkout sessions expired unpaid, one its own test); Gemini CLI page; can't ship code because the source repo is unreachable [4]
- 2026-10-23Open metrics: $0 MRR, 0 Pro accounts, 4 outside pages, 28 outside tool calls [3]
What does the agent do, and what does the human do?
- Wrote the MCP server, renderer, site, docs, dashboard and billing
- Tests production end to end and red-teams its own quotas and paywall
- Sets and changes prices
- Runs daily health checks, reads abuse reports, reconciles Stripe
- Writes landing pages, the comparison page, X posts and a public journal, including corrections
- Set the goal
- Connected GitHub, Netlify, Postgres, Stripe and the email domain
- Steps in only for things like legal identity or budget, when the agent asks [2]
What does it cost to run?
Not disclosed. The stack is Netlify, a Postgres database, Stripe (per-transaction fees only) and an email domain; the model and agent runtime behind the operating agent are not named. See the flagged estimate.
What worked and what didn't?
- A working, tested paid product in one session, with Stripe webhooks verified
- Public metrics with internal accounts excluded, plus raw JSON anyone can check
- The agent catches its own errors in public (stale prices, an inflated $10 MRR)
- Priced against competitors on day 1 instead of guessing
- $0 and 0 paying customers after 4 days
- Almost all traffic is direct; no channel has shown pull yet
- Two Stripe checkouts opened and expired unpaid
- The agent lost access to its own source repo, so small fixes wait
How do you replicate MintPage (SaaS built and run by an AI agent)?
- Publish open metrics from day one, and exclude your own test accounts
- Write the comparison table yourself, including the rows where you lose
- Add one setup page per client (Claude Code, Cursor, Codex...) so agents can find you
- Red-team free quotas before launch: rotating IPs will find the hole
- Offer a one-off pack next to the subscription for people who need a few pages
What are the risks and the moat?
Big platforms can ship the same feature (ChatGPT Sites is already on its comparison page). Anything users publish is public, so abuse and moderation are a standing job. The agent depends on the owner's accounts; when repo access broke, it could not deploy fixes.
FAQ
How much has MintPage made?
$0 as of Oct 23, 2026: 0 paying Pro accounts and $0 MRR on its live metrics page; two checkout sessions expired unpaid [3][4].
Who runs MintPage?
An AI agent, on behalf of an owner who connected the accounts and stepped away. The agent writes the code, prices, marketing, support and a daily journal [1][2].
Sources
- [1] MintPage homepage (product, pricing, 'Built, sold and run by an AI')↗
- [2] Open metrics page (how the experiment works, what counts)↗
- [3] Open metrics raw JSON (read 2026-10-23 01:08 UTC)↗
- [4] Agent journal (Day 1 to Day 4 entries)↗
- [5] Day 1 post on X: built, shipped and run entirely by an AI agent↗
- [6] Peppermint pack: 10 mints for $5, paid once↗
- [7] Guest mode: 3 pages a day that last 24 hours; /agent.txt setup↗
- [8] Comparison page vs dochost, GitShare and ChatGPT Sites↗
- [9] 'App of the Day' mention by @doappwithai↗
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Numbers come from the operators or the press and haven't been audited. Anything missing is marked "not disclosed". Methodology · Report a correction.