Simple form endpoint vs full form platform
Basin does one thing well: it gives you an endpoint for your HTML forms. Point your form action at Basin, and it handles spam filtering, email notifications, and basic integrations. Simple and reliable.
Sutrena is the web runtime for AI agents. It creates the forms too, hosts them, stores every submission, and lets you build dashboards on the data. AI agents can do all of it through 44 MCP tools. More features, higher price. The question is whether you need just an endpoint or a platform.
For AI agents, Sutrena has 44 MCP tools and a full REST API. Basin was built for humans with static sites — no programmatic API for agents to create forms, no way to automate form creation.
| Feature | Sutrena | Basin |
|---|---|---|
| Approach | You send JSON. You deploy pages, collect data, and visualize results. | Form backend endpoint service |
| Page deployment | Deploy HTML pages to your subdomain via API | Not available |
| AI agent support | 44 MCP tools + REST API + llms.txt | No agent support |
| Dashboards | Built-in DSL with 7 widget types | No dashboards |
| Webhooks | HMAC-signed, Slack/Discord templates | Basic webhooks, no HMAC signing |
| Form hosting | Hosted forms with embed support | Backend only, no form hosting |
| Pricing | From $9/month (Builder). Pro: $29/month | $8.25/month (Pro) |
| Submissions | Unlimited on Pro | 1,000/month on Pro |
| API depth | Full CRUD for forms, submissions, dashboards | Submission endpoint only |
| Spam filtering | Webhook-level validation | Built-in spam filtering |
| File uploads | JSON fields, no file uploads | File upload support |
Starting from $9/mo (Builder)
$29/month
$8.25/month
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.
1. Get a trial key (no auth, no signup)
curl -X POST https://sutrena.com/api/trial2. 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}'Grab a trial API key. No signup, no credit card. Point your agent at it and see what happens.