Put a website in your lead funnel.

Sintr becomes two steps of the pipeline you already run, started by your own tools and your own payment: a draft site for every lead, and the live site once the client pays.

  1. 1Find the leadClayApolloMaps scrapers
  2. 2Write the copyyour AI stepin n8n or HubSpot
  3. 3Draft siteFrom a Sintr template, password-protectedSintr
  4. 4PitchEmailSMSLoom
  5. 5Get paidStripeGoHighLevelPayPal
  6. 6Go live and collect leadsOn your client’s domain, with forms that reach your CRMSintr

Unpaid after the days you choose? Sintr deletes the draft and sends you its leads first.

One lead, start to finish.

Nordvik Rör is a made-up plumbing business. This is what happens to it in your funnel.

  1. Clay finds the lead.

    A plumbing business in Uppsala with good reviews and no website lands in your table.

    CompanyCityPhoneWebsite
    Nordvik RörUppsala+46 18 555 01 20none
    Row 1842 in your Clay table

  2. Your workflow writes the brief and calls Sintr.

    Your AI step turns the row into a brief: name, services, area, opening hours. The workflow sends it to Sintr with the row as the client reference.

    POST /api/automation/drafts
{
  "clientRef": "clay-row-1842",
  "name": "Nordvik Rör",
  "template": "local-business",
  "brief": { "businessName": "Nordvik Rör", … }
}

  3. The draft is ready.

    When the build finishes, Sintr calls your webhook with a signed site.draft_ready event: the preview address and its password.

    site.draft_ready
{
  "previewUrl": "https://calm-harbor.sintr.dev",
  "previewPassword": "q7Rk2mXv9LpA"
}

  4. You call, and send the preview.

    The owner opens a site that is already theirs, behind a password, while you are still on the phone.

    calm-harbor.sintr.dev

    This preview is private.

    Usernamepreview

    Password••••••••••••

    Open preview

  5. The client pays you.

    Through your own checkout, at your own price. Sintr never bills your client.

    Nordvik RörWebsite, first year

    Your checkout, your price

  6. The site goes live.

    The payment triggers your workflow, which calls publish with the client’s domain. The draft becomes the live site, with HTTPS.

    POST /api/automation/drafts/nordvik-ror/publish
{
  "domain": "nordvikror.example"
}

  7. The first lead comes in.

    A visitor fills in the contact form. Sintr sends form.submitted to your workflow, and the lead lands in your CRM, or the client’s.

    nordvikror.example/contact/

    Contact Nordvik Rör

    NameAnna Berg

    MessageDripping tap in the kitchen, can you come Thursday?

    Send

What it costs you. On the Agency plan, €179 a month for 25 sites, about €7 a site; on Unlimited, €299 a month for unlimited sites. Every feature is in every plan.

Recipes for the tools you use.

Start from a ready workflow, put in your token and signing secret, and run your first lead through it.

n8nClayHubSpot

n8n

  1. New lead
  2. Your AI step: write the brief
  3. Sintr: create draft
  4. Sintr events: verify signature
  5. Send preview
  6. Payment received
  7. Sintr: publish
  1. Import the workflow: in n8n choose Workflows, then Import from file.
  2. Put your automation token in the two Sintr nodes, and replace the AI step with your own.
  3. Set Sintr’s webhook to the address of the "Sintr events" node, and paste the signing secret into "Verify signature".
  4. Point your payment tool at "Payment received" with the siteId from the draft_ready event.

Download the n8n workflow

Clay

  1. Your Clay table
  2. Your AI step: write the brief
  3. HTTP API column: Sintr draft
  4. siteId and previewUrl columns
  1. Add an HTTP API column to your table and copy the settings from the steps file into it.
  2. Put your automation token in the Authorization header.
  3. Map the Company Name, Phone and City columns into the brief, or the output of your AI step for a richer one.
  4. Map siteId and previewUrl from the response into columns for your outreach.

Download the steps as JSON

HubSpot

  1. Deal enters "Paid"
  2. Send a webhook: Sintr publish
  3. Site live on the client’s domain
  1. Create a deal property "Sintr site ID" and fill it from the step that created the draft.
  2. Create a deal workflow that starts when the deal enters your paid stage.
  3. Add a "Send a webhook" action that calls publish for that site, with your automation token.
  4. Receive Sintr’s events through a step that can check signatures, such as n8n.

Download the steps as JSON

Create a draft

One request per lead. The Idempotency-Key makes a retry safe: the same key and body never create a second draft.

POST https://dashboard.sintr.dev/api/automation/drafts
Authorization: Bearer <automation token>
Idempotency-Key: clay-row-1842
Content-Type: application/json

{
  "clientRef": "clay-row-1842",
  "name": "Nordvik Rör",
  "template": "local-business",
  "brief": {
    "businessName": "Nordvik Rör",
    "tagline": "Plumbing for homes and offices in Uppsala, same-day call-outs.",
    "phone": "+46 18 555 01 20",
    "email": "hej@nordvikror.example",
    "cta": "Book a plumber",
    "address": {
      "street": "Verkstadsgatan 4",
      "postalCode": "753 23",
      "city": "Uppsala",
      "country": "Sweden"
    },
    "areaServed": [
      "Uppsala",
      "Knivsta",
      "Storvreta"
    ],
    "services": [
      {
        "title": "Leaks and burst pipes",
        "description": "Same-day call-outs for leaks, burst pipes and blocked drains."
      },
      {
        "title": "Bathroom renovations",
        "description": "New pipework, showers and floor drains, with a fixed quote."
      }
    ],
    "hours": [
      {
        "days": "Mon-Fri",
        "opens": "07:00",
        "closes": "17:00"
      }
    ]
  }
}

Receive site.draft_ready

Every event is signed with your signing secret.

POST <your webhook>
Content-Type: application/json
Sintr-Event-Id: evt_5c1e9a07b3d2f468e1a0
Sintr-Signature: t=<unix seconds>,v1=<hex HMAC-SHA256>

{
  "id": "evt_5c1e9a07b3d2f468e1a0",
  "type": "site.draft_ready",
  "createdAt": "2026-10-04T09:12:44.000Z",
  "data": {
    "siteId": "nordvik-ror",
    "clientRef": "clay-row-1842",
    "previewUrl": "https://calm-harbor.sintr.dev",
    "previewPassword": "q7Rk2mXv9LpA",
    "formEndpoints": [
      "/__hp/forms/contact"
    ],
    "expiresAt": "2026-10-18T09:12:44.000Z",
    "warnings": []
  }
}

To verify, compute HMAC-SHA256 of <t>.<raw body> with your signing secret, compare it with v1, and reject a t older than five minutes. Ignore an event id you have already handled.

Or let your AI assistant set it up.

Add Sintr’s MCP server to the assistant you already use, then ask it to run setup_automation.

It sets your webhook and how many days an unpaid draft is kept, creates a narrow automation token: it can create, publish and clean up drafts and read your sites, clients and form submissions, but cannot delete live sites or clients, and returns the recipe for your tool with your token filled in.

  • automation_statusWhat is set up and what is still missing.
  • setup_automationWebhook, cleanup days and token, plus a filled-in recipe for n8n, Clay or HubSpot.
  • test_automationSends a signed test event to your webhook and reports whether it arrived.

The hosted MCP server is https://mcp.sintr.dev. Send your access token as a Bearer header.

Run your next lead through it.

Priced by sites, never by visits. Every feature in every plan.

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