Basin alternative: migrating to Ollastack step-by-step

Move from Basin to Ollastack: swap the endpoint, keep your fields, and gain an agent-first API, inspectable webhooks with replay, and reversible spam.

Basin is a polished, developer-friendly form backend — if you’re leaving it, it’s usually for one of a few specific reasons, not because anything’s broken. This guide covers the why briefly and the how in full. For the wider landscape, see Basin vs Web3Forms.

Why teams move from Basin

• They need agent/API submissions as a first-class path (an AI agent or a script submitting on a user’s behalf), which a human-shaped form backend flags as spam.
• They want webhooks they can inspect and replay, not just delivered.
• They want spam decisions to be visible and reversible — to see and recover a filtered lead.
• Volume/pricing fit at scale.

If none of those apply, Basin is a fine place to stay. If one does, the move is straightforward.

The migration is one line

A Basin form posts to a Basin endpoint:

<form action="https://usebasin.com/f/abcd1234" method="POST">
  <input name="email" type="email" required />
  <textarea name="message" required></textarea>
  <button>Send</button>
</form>

Point it at Ollastack and add the optional honeypot:

<form action="https://login.ollastack.com/api/submit/your-slug" method="POST">
  <input name="email" type="email" required />
  <textarea name="message" required></textarea>
  <input type="text" name="_gotcha" style="display:none" tabindex="-1" />
  <button>Send</button>
</form>

Field names carry over. The endpoint accepts JSON, urlencoded, and multipart, so fetch() and plain HTML both work unchanged.

Map the magic fields

Basin and Ollastack share most conventions:

CC/BCC are set in form settings, not read from public payloads (anti-relay).

What you gain

• Agent submissions: mint a scoped Bearer token and an agent can submit cleanly — skipping honeypot/captcha/per-IP limits — tagged agent:<tokenId> in your inbox. Agents self-discover the API from /api/openapi.json.
• Webhooks with replay: signed deliveries, retries on a backoff ladder, full per-webhook history, and one-click replay of the exact stored payload.
• Reversible spam: ML-uncertain submissions are quarantined (delivered + labeled), not dropped; a readable failures log captures anything rejected before storage.
• Built-in mail testing: disposable inboxes + /wait if you also test transactional email in CI.

Verify the cutover

1. Submit a test from the live page → it lands in the inbox.
2. Notification arrived.
3. Webhook fired → delivery recorded.
4. Remove the Basin form.

Start free — 100 submissions/month, no card. The endpoint is the only thing to remember.

Last updated June 19, 2026. Spotted something out of date? Email hello@ollastack.com.