How do I add a newsletter signup form to my website?

Your agent creates a newsletter form in one API call using the newsletter template. You get a 2-line embed snippet or you can build your own HTML form and POST JSON to the API. Either way, emails go to the same place.

Can I track subscriber growth over time?

Yes. The dashboard has a total count and a line chart showing growth. It is at a public URL and refreshes on its own.

How do I export my subscriber list?

On Builder, Pro, and Scale plans, use the CSV export endpoint. Your agent can also use the submissions API to pull subscribers programmatically. On the free plan, CSV export is not available.

Sutrena is the web runtime for AI agents. Three primitives — pages, forms, dashboards — any agent creates with one API call. Framework-agnostic. Works from Claude Code, Cursor, LangGraph, CrewAI, or any HTTP client.

How do I get started with Sutrena?

POST /api/trial to get an instant API key — no signup required. Then POST /api/forms with a template ID to create a hosted form with a matching dashboard in one call.

Does Sutrena support AI agents?

Yes. Sutrena includes 48 MCP tools for Claude Code, Cursor, and any MCP client. It also provides a full REST API, OpenAPI spec, llms.txt, and agent-optimized error messages.

How much does Sutrena cost?

Free: 10 projects, 500 submissions/form, 50MB storage. Builder: $9/month for 50 projects, 5,000 submissions/form, CSV export, upsert API. Pro: $29/month for 200 projects, unlimited submissions. Scale: $79/month for unlimited everything.

Can I embed Sutrena forms on my website?

Yes. Use the 2-line embed snippet or build a custom HTML form that POSTs JSON to the submit URL. Works with Framer, Webflow, WordPress, and any HTML site.

What happens to my data after the trial expires?

Unclaimed trial data is deleted after 24 hours. Visit the claimUrl to sign in with GitHub or Google and keep your data permanently. Or upgrade to Builder, Pro, or Scale.

Does Sutrena support webhooks?

Yes. Register webhook URLs to receive form submission events with HMAC-SHA256 signatures. Supports Slack and Discord payload templates, field mapping, and automatic retry with failure tracking.

Newsletter signup for any website

An email form. A subscriber count. An export when you need it.

You write a blog, or run a community, or sell things. You want people to give you their email. You do not want to pay Mailchimp $50/month just for a signup form. This is the collection part. You still send emails with whatever tool you prefer.

How an agent handles this: Your agent creates a newsletter signup form via API (email + name fields). Embeds form on your website. Visitors submit email addresses. Webhook notifies agent on each signup. Agent processes new subscribers (adds to email list, sends welcome email, updates analytics). Dashboard tracks growth.

What are you using now?

Without Sutrena

✗Paying $50/month for Mailchimp just to have a signup form
✗Or a Google Form that looks wrong on your site
✗No idea if signups are growing or flat this week
✗Duplicates in your list. You email the same person twice.
✗Export is locked behind a higher-tier plan

With Sutrena

✓From $9/month. A newsletter form is one form — Builder covers it.
✓Embed a form or build your own — POST JSON either way
✓Dashboard shows subscriber count and growth trend
✓uniqueBy: ['email'] prevents duplicates
✓CSV export on Builder ($9/mo), Pro ($29/mo), and Scale ($79/mo)

One API call

curl -X POST https://sutrena.com/api/forms \
  -H "Authorization: Bearer YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "templateId": "newsletter",
    "createDashboard": true
  }'

The template has name and email fields. Embed the form, share the URL, or build your own signup box and POST to the submit endpoint.

What this costs

A newsletter signup is one form. Builder is $9/month — 50 projects, 5,000 subscribers per form. That covers most personal blogs and small projects. When you outgrow 5,000 subscribers, Pro is $29/month for unlimited submissions and CSV export. This is the collection layer. You still need a separate tool to send emails — but that separation is a good thing. Pick the cheapest sender and collect with Sutrena.

View full pricing

What is Sutrena?

Sutrena is the web runtime for AI agents. Three primitives — pages, forms, and dashboards — accessible through one API. Your agent creates web artifacts, humans interact with them, and your agent gets the data back. Framework-agnostic. Works from any MCP client or HTTP client.

Get started in two API calls

1. Get a trial key (no auth, no signup)

curl -X POST https://sutrena.com/api/trial

2. Create a form + dashboard from a template

curl -X POST https://sutrena.com/api/forms \
  -H "Authorization: Bearer st_trial_xxx" \
  -H "Content-Type: application/json" \
  -d '{"templateId": "waitlist", "createDashboard": true}'

/llms.txt /api/schema /llms-full.txt /.well-known/mcp.json

Want to collect emails?

Get a trial key. Add the form to your site. See signups come in.

Start building Full reference