Agency plan · REST API

AcuityScan API

Programmatic access to the full Site+ Scan (350+ checks) and every individual module. JSON in, JSON out. One header for auth, one body field for the domain, one cap (250 requests/day) shared across all your keys.

Create your first key See Agency pricing

Quickstart

From zero to a scan in four steps.

1Upgrade to Agency. The API surface is Agency-only. See plans →
2Mint a key in /settings → API keys. Name it and copy the token immediately — we show it once.
3Send the key as a Bearer token (or x-api-key header — pick whichever your client likes).
4Call an endpoint with a JSON body. All POST endpoints take { "domain": "..." }.

First call

curl -X POST https://acuityscan.com/api/v1/scan \
  -H "Authorization: Bearer asc_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{"domain":"example.com"}'

Authentication

Every request must carry a valid API key. Two headers are accepted — pick whichever fits your client.

Authorization: Bearer asc_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

— or —

x-api-key: asc_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Keys are bound to your account, not to any one IP — use them from any host. Your plan tier is re-checked on every request, so a downgrade demotes API access immediately (even on previously-minted keys). Revoke a key in /settings if it leaks.

Rate limit

250 requests / 24 h per Agency account, regardless of how many keys you've issued. The window is a rolling 24 hours from your oldest in-window call.

When you exceed:

HTTP/1.1 429 Too Many Requests

{ "error": "API daily cap reached (250/day). Resets at 2026-05-14T...Z.",
  "code": "rate_limit",
  "used": 250,
  "cap": 250,
  "resetAt": "2026-05-14T..." }

Need more? Email support@acuityscan.com with your use case.

Endpoints

All endpoints return JSON. All POST bodies take a domain field. Base URL: https://acuityscan.com.

POST/api/v1/scan

Run a full Site+ Scan

Runs all 8 modules in parallel and returns the complete result. Synchronous — typical 30s, up to 5 min on heavy sites (the perf module uses real Lighthouse).

curl -X POST https://acuityscan.com/api/v1/scan \
  -H "Authorization: Bearer asc_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{ "domain": "example.com" }'

GET/api/v1/scan/latest?domain=example.com

Get your most recent saved scan

Returns the latest scan you've saved for this domain. Useful for daily-check jobs that want to avoid burning a fresh scan if recent data will do.

curl https://acuityscan.com/api/v1/scan/latest?domain=example.com \
  -H "Authorization: Bearer asc_live_xxx"

POST/api/v1/tools/email

Email deliverability check

SPF, DKIM, DMARC, MX, BIMI, MTA-STS, TLSRPT, PTR, 77 blacklists, Google/Yahoo bulk-sender compliance.

curl -X POST https://acuityscan.com/api/v1/tools/email \
  -H "Authorization: Bearer asc_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{ "domain": "example.com" }'

POST/api/v1/tools/dns

DNS health check

A/AAAA/MX/TXT/NS/SOA/CAA/DS records, DNSSEC validation, TTL analysis, nameserver redundancy, propagation across 20 global resolvers.

curl -X POST https://acuityscan.com/api/v1/tools/dns \
  -H "Authorization: Bearer asc_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{ "domain": "example.com" }'

POST/api/v1/tools/ssl

SSL/TLS + threat audit

Certificate chain + expiry, TLS protocol + cipher suites, Google Safe Browsing, security headers, HSTS preload, exposed files.

curl -X POST https://acuityscan.com/api/v1/tools/ssl \
  -H "Authorization: Bearer asc_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{ "domain": "example.com" }'

POST/api/v1/tools/performance

Desktop + mobile performance

Real Google PageSpeed Insights (Lighthouse) for desktop AND mobile, Core Web Vitals, TTFB, compression, CDN detection, 60+ tech-stack detections.

curl -X POST https://acuityscan.com/api/v1/tools/performance \
  -H "Authorization: Bearer asc_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{ "domain": "example.com" }'

POST/api/v1/tools/seo

Technical SEO

Title + meta description, heading hierarchy, canonical, OG, Twitter, robots.txt, sitemap.xml, schema.org, viewport, alt text, internal links.

curl -X POST https://acuityscan.com/api/v1/tools/seo \
  -H "Authorization: Bearer asc_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{ "domain": "example.com" }'

POST/api/v1/tools/accessibility

WCAG 2.1 AA accessibility

Full axe-core audit at desktop 1280×800 and mobile 375×812, merged and deduped. Plus 38+ custom HTML checks. Boots a headless Chromium per call.

curl -X POST https://acuityscan.com/api/v1/tools/accessibility \
  -H "Authorization: Bearer asc_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{ "domain": "example.com" }'

POST/api/v1/tools/privacy

Privacy + cookies

28+ tracker detection, cookie consent banner, pre-consent violations, privacy-policy + CCPA link presence, Consent Mode v2, mixed content.

curl -X POST https://acuityscan.com/api/v1/tools/privacy \
  -H "Authorization: Bearer asc_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{ "domain": "example.com" }'

POST/api/v1/tools/mobile

Mobile + UX

Viewport meta, tap targets, font size, form input types, PWA features, intrusive interstitials, responsive images, horizontal overflow.

curl -X POST https://acuityscan.com/api/v1/tools/mobile \
  -H "Authorization: Bearer asc_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{ "domain": "example.com" }'

Error codes

Every error response carries { error, code }. Thecode is the machine tag; branch on it.

Status	Code	Meaning
401	missing	No Authorization or x-api-key header sent.
401	invalid_format	Token doesn't start with asc_live_.
401	unknown	Token isn't in our database — likely typo'd or never existed.
401	revoked	Token was revoked in /settings.
403	downgraded	Account is no longer on the Agency plan. Upgrade to re-enable.
400	invalid_domain	Domain shape rejected. Use "example.com", no protocol or path.
400	unsafe_target	Domain resolved to a private/internal IP. SSRF guard refused the scan.
429	rate_limit	Account hit 250 requests/day. Resets 24 h after the oldest in-window call.
500	internal	Scanner crashed. Check status page; if persistent, contact support.

Use AcuityScan from your AI client

We ship an open-source Model Context Protocol server that wraps every endpoint above as an MCP tool. Drop it into Claude Desktop, Cursor, or Continue and ask in plain English: “run a full AcuityScan on stripe.com.”

Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "acuityscan": {
      "command": "npx",
      "args": ["-y", "@acuityscan/mcp"],
      "env": {
        "ACUITYSCAN_API_KEY": "asc_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
      }
    }
  }
}

Cursor, Continue, and other MCP clients use the same command / args / env shape. Full setup guides in the repo.

github.com/AcuityScan/mcp

Ready to ship?

Upgrade to Agency and the key UI unlocks. First scan takes one curl call.

See Agency pricing I'm already Agency — go to /settings