PayAPI Market

x402 API marketplace for AI agents. We pay real USDC on Base to verify a listing before it earns its badge. Pay per request. Free to list, keep 100%.

Estimated origin: Portugal

Added August 11, 2026 · Last analysed August 11, 2026 · via

Own this Launch?

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 11 August 2026; the live site may have changed since.

PayAPI Market has the basics covered well, with a complete set of security headers, a thorough launch checklist, and well-configured email security. Main gaps: incomplete legal pages.

Launched on Product Hunt on August 11, 2026. The site is hosted on Vercel, with a domain registered 4 months before launch. Our crawler found 12 technologies on this site, covering analytics, baas, developer tools, and DNS providers. The stack includes Airtable, Google Fonts, and HSTS.

It's also on one of the most common stacks we track, shared by 3,610 launches and more locked down than the typical Product Hunt launch.

If you own this site, refresh the snapshot and see the full fix list any time →

7.9

StackScope Score

Good

100/100 Launch Readiness

Launch ready

6/6 Security Headers

Strong

0/3 Legal

Missing

2/2 Crawl files

Complete

100/100 Performance

Fast

Vibe Score 10 · Few AI signals

How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (12) · Indie stack

Infrastructure

DNS	Porkbun DNS (2)
Hosting	Vercel
Security	HSTS

Email forwarding	Porkbun Email Forwarding
Transactional email	Resend

Build & Framework

BaaS	Supabase
Developer tools	Vite
Font	Google Fonts
JavaScript library	React Router

Analytics & Marketing

Analytics	Umami (3)

Commerce & Payments

Payments	Stripe

Business Tools

SaaS	Airtable

Infrastructure

Network

AMAZON-02 - Amazon.com, Inc., US

AS16509 · US

DNS

Porkbun DNS

Authoritative nameserver

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

Green hosting

Not green hosted

No green-energy record. Data from The Green Web Foundation.

SSL Certificate

Let's Encrypt

Valid 10 Jun 2026 to 8 Sep 2026

Certificate as captured in this snapshot, not a live check.

Domain Age

4 months

Registered Apr 2026 · Porkbun LLC

Email Security

✓

SPF -all Strict (-all). Strong.

✓

DKIM Detected via known email provider

✓

DMARC p=reject Reject (strict). Strong.

MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.

TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (0)

This site uses no client-side storage we could detect on page load.

Readiness Breakdown How?

✓ Custom title and meta description

✓ Open Graph tags (title, image, description)

✓ Twitter card meta tags

✓ Canonical URL declared

✓ Responsive viewport meta tag

✓ Favicon present

✓ Semantic HTML (nav, main, article)

⚠

Meta description is 368 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

Performance How?

137 ms Server response

82% Faster than peers

452 ms Largest contentful paint

0.01 Cumulative layout shift

376 KB Page weight

3 Third-party domains

0 Console errors

0 Failed requests

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

Vibe Score Breakdown How?

Signal	Points
AI styling signals	+10

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

Welcomes AI crawlers

✓ llms.txt published

✓ No AI bots blocked in robots.txt

Content-Signal

? No directive declared

Link headers

? None advertised

Well-Known Files

✓ robots.txt

✓ sitemap.xml (128 URLs)

✗ security.txt

✓ llms.txt

✗ ads.txt

✗ humans.txt

Legal

? Privacy Policy not detected

? Terms of Service not detected

? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).

Detection works best on English language sites.

Security Headers (6/6)

✓

Referrer-Policy

✓

X-Frame-Options

✓

Permissions-Policy experimental (check browser support)

✓

X-Content-Type-Options

✓

Content-Security-Policy

✓

Strict-Transport-Security

–

X-XSS-Protection deprecated (use Content-Security-Policy)

Build

2 JS files

1 CSS files

3 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.