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.

Features/Webhooks

Webhooks

Form submitted. Agent notified. The human-in-the-loop pipeline.

Updated March 2026

When someone submits a form, Sutrena sends the data to your URL. Slack, Discord, Zapier, Make, n8n, or your own backend. HMAC-SHA256 signing so you can verify it came from us. Delivery logs so you can see what happened. The human-in-the-loop workflow: agent creates form, human fills it, agent gets notified.

What it does

✓HTTPS webhooks with HMAC-SHA256 signing for verification
✓Delivery logs — see status codes, response times, success/failure for each delivery
✓Test endpoint — send a ping to verify your webhook is receiving events
✓Field mapping — remap field names in the payload (e.g. email → user_email)
✓Link webhooks to specific forms or receive all form submissions
✓Enable/disable webhooks without deleting them
✓Works with Slack, Discord, Zapier, Make, n8n, or any HTTPS endpoint
✓Webhook payload includes all submission fields plus metadata
✓Up to 1 webhook on free, 5 on Builder, 10 on Pro, unlimited on Scale

How it works

curl -X POST https://sutrena.com/api/webhooks \
  -H "Authorization: Bearer YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://hooks.slack.com/services/T.../B.../xxx",
    "description": "New signup alerts",
    "formIds": ["FORM_ID"],
    "fieldMapping": {
      "email": "user_email",
      "name": "user_name"
    }
  }'

# Test it:
curl -X POST https://sutrena.com/api/webhooks/WEBHOOK_ID/test \
  -H "Authorization: Bearer YOUR_KEY"

Create a webhook, link it to a form, test it. When submissions arrive, your endpoint gets called with the data.

What it does not do

No retry logic on failed deliveries right now. No transformation beyond field mapping. If you need complex event routing or conditional delivery, use Zapier or n8n as the webhook target and handle the logic there.

FAQ

How do I verify the webhook came from Sutrena?

Each webhook delivery includes an HMAC-SHA256 signature in the headers. Verify it against your webhook secret to confirm the payload is authentic and has not been tampered with.

Can I see if a webhook delivery failed?

Yes. GET /api/webhooks/:id/deliveries returns the delivery log — status code, response time, success/failure, and the response body for each delivery.

Can I send webhooks to Slack?

Yes. Create a webhook with your Slack incoming webhook URL. Every form submission gets posted to your Slack channel. Use field mapping to customize the payload shape.

How many webhooks can I create?

Free: 1. Builder ($9/mo): 5. Pro ($29/mo): 10. Scale ($79/mo): unlimited. Each webhook can be linked to multiple forms.

Forms →Slack integration →Zapier integration →Guide: Slack webhook setup →API documentation →

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

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