Connect your own website to Clay.

curl -X POST https://clayapp.nl/api/public/v1/leads \
  -H "Authorization: Bearer clay_live_xxxxxxxxYourSecretHere" \
  -H "Content-Type: application/json" \
  -d '{
    "email":             "lara@example.com",
    "first_name":        "Lara",
    "last_name":         "Janssen",
    "phone":             "+31612345678",
    "source":            "trial",
    "source_detail":     "Webflow / signup-block",
    "interest":          "trial",
    "message":           "Would like to book a trial",
    "consent_marketing": true,
    "locale":            "en",
    "metadata":          { "utm_campaign": "spring-2026" }
  }'

{
  "ok": true,
  "data": {
    "id": 1234,
    "status": "new",
    "createdAt": "2026-04-28T11:23:45.000Z"
  }
}

curl "https://clayapp.nl/api/public/v1/classes?from=2026-05-01T00:00:00Z&limit=20" \
  -H "Authorization: Bearer clay_live_xxxxxxxxYourSecretHere"

curl https://clayapp.nl/api/public/v1/membership-plans \
  -H "Authorization: Bearer clay_live_xxxxxxxxYourSecretHere"

<form id="trial-form">
  <input name="email" type="email" required />
  <input name="first_name" />
  <input name="phone" />
  <button type="submit">Book a trial</button>
</form>

<script>
  const CLAY_KEY = "clay_live_xxxxxxxxYourSecretHere";

  document.querySelector("#trial-form").addEventListener("submit", async (e) => {
    e.preventDefault();
    const fd = new FormData(e.currentTarget);
    const res = await fetch("https://clayapp.nl/api/public/v1/leads", {
      method: "POST",
      headers: {
        "Authorization": "Bearer " + CLAY_KEY,
        "Content-Type": "application/json",
      },
      body: JSON.stringify({
        email:        fd.get("email"),
        first_name:   fd.get("first_name"),
        phone:        fd.get("phone"),
        source:       "trial",
        source_detail: location.pathname,
        consent_marketing: true,
        locale:       "en",
        metadata: {
          utm_source:   new URL(location.href).searchParams.get("utm_source"),
          utm_campaign: new URL(location.href).searchParams.get("utm_campaign"),
        },
      }),
    });
    const json = await res.json();
    if (json.ok) {
      e.currentTarget.reset();
      alert("Thanks — we'll email you within one business day.");
    } else {
      alert("Oops: " + json.error.message);
    }
  });
</script>

URL:     https://clayapp.nl/api/public/v1/leads
Method:  POST
Headers:
  Authorization: Bearer clay_live_xxxxxxxxYourSecretHere
  Content-Type:  application/json
Data:
  email:           {{trigger.email}}
  first_name:      {{trigger.first_name}}
  phone:           {{trigger.phone}}
  source:          zapier
  source_detail:   "Typeform: Open day signup"
  consent_marketing: true

const res = await fetch("https://clayapp.nl/api/public/v1/leads", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.CLAY_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ email, first_name: firstName, source: "website" }),
});
if (!res.ok) {
  const { error } = await res.json();
  throw new Error(`Clay ${error.code}: ${error.message}`);
}