Setup

Protect your API in 5 minutes.

One form. One CNAME record. The rest is automatic — Greyline provisions your TLS cert, starts scoring every request, and deflects the agents before they touch your real infrastructure.

01

Fill out the form

Enter your email, the domain you want to protect (e.g. api.yourdomain.com), and where your real backend lives.

02

Add a CNAME record

Point your API subdomain at Greyline's edge. We provision TLS automatically via Cloudflare for SaaS.

03

Greyline scores every request

11 signal detectors run in real time. Agents get routed to the Bouncer. Humans pass through with zero added latency.

04

Watch the dashboard

Every agent session is logged with full attribution — framework, turn count, signals triggered, and the complete interrogation transcript.

Start free

No credit card required · Free tier includes 10,000 req/month

Please enter a valid email address.

The domain your clients call — this will point to Greyline.

Enter a valid hostname (e.g. api.yourcompany.com).

Where Greyline forwards clean traffic. Stays private — never exposed to agents.

Enter a valid hostname for your real backend.

By signing up you agree to our Terms of Service and Privacy Policy.

✓

You're in.

Your account is created. Follow the steps below.

Your API key — save this now

Add this DNS record

Type Name Value TTL
CNAME — proxy.greyline.themeridianlab.com 300

TLS is auto-provisioned once Cloudflare sees the CNAME. Usually takes under 2 minutes.

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Open your dashboard

View agent sessions, transcripts, and signals

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Read the docs

Configure strategies, fast-pass operators, and more

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Back to home

greyline.themeridianlab.com