API-FIRST · AGENT FORMS · MAILBOXES

Forms, mailboxes & email testing,
Built for your
AI agents.

Three things your agents need, one backend: form endpoints they POST to and sail past the bot defenses, real mailboxes they send, receive, reply, and read OTP codes from, and disposable inboxes for testing email in CI. One token system, one OpenAPI spec they read themselves.

Start free → Read the docs

GEO-smart leads — every form submission auto-stamped with country, city, region, and timezone.

HEADLESS FORMS 01

One endpoint. Every submission GEO-stamped, spam-filtered, and agent-aware.

OLLASTACK

ONE PLATFORM ONE BACKEND · ONE TOKEN ONE CONSOLE
AGENT MAIL 02

Real email inboxes your agents own. Send, receive, and reply over the API.

TEST INBOXES 03

Disposable inboxes for CI. Read OTPs, assert, and test every email with ease.

BOT DEFENSES
READY
OPENAPI
FRIENDLY
SECURE BY DESIGN
TOKEN AUTH
/ LIVE DEMO

See Ollastack in action.

Submit a form and watch what happens.

✓ Submission captured!
📍 Location
Bengaluru, India 🇮🇳
🕒 Time
May 18, 2025, 12:41 PM IST
🔘 Status
● Received
🆔 Lead ID
lead_01JXBZQ1KSK6Y2M7T9R1
View full submission →
/ ONE PLATFORM

Everything your agents can do.

Forms in, mail out — one backend, one token system, one console. Each surface is in the OpenAPI spec your agent reads itself.

Explore all docs →
01 FORMS

Headless forms

One endpoint. Every submission GEO-stamped, spam-filtered, and agent-aware.

POST /v1/forms/{id}/submit
Authorization: Bearer {token}
Content-Type: application/json
{
  "name": "Ada",
  "email": "ada@example.com"
}
→ Call it live
02 AGENT MAIL

Agent Mail

Real email inboxes your agents own.

✉ support@agent.ollastack.com 3
✉ New message from user
2m ago
✉ OTP is 364921
5m ago
✉ Welcome to Ollastack
12m ago
→ View docs
03 TEST INBOXES

Mail testing for CI

Disposable inboxes on @test.ollastack.com: read OTPs, assert, and test every email.

Inbox: test_01HXY2
OTP detected: 364921 Success
Code extracted Success
Assertion passed Success
→ View docs

TRUSTED BY BUILDERS

/ API-FIRST · CALL IT NOW

Three capabilities. One API. Call them live.

The Forms and Test-inbox demos run for real, right here — no key, no signup.

openapi.json ↗ 
$ curl -X POST https://login.ollastack.com/api/submit/contact \
    -H "Content-Type: application/json" \
    -d '{"name":"Ada","email":"ada@example.com","message":"Tell me more"}'
live sandbox · no token needed 
# the response shows here — geo is auto-stamped server-side
# claim your agent's identity, then send as it
$ curl -X POST https://login.ollastack.com/api/mailboxes \
    -H "Authorization: Bearer fmd_<token>" \
    -d '{"name":"Support","mode":"agent","handle":"support"}'
$ curl -X POST https://login.ollastack.com/api/mailboxes/$ID/send \
    -d '{"to":"user@example.com","subject":"Re: your demo","text":"…"}'
needs a mail token · runs in your terminal 
{"success": true, "data": {
  "address": "support@agent.ollastack.com",
  "direction": "outbound", "deliveryStatus": "sent"}}
# disposable inbox → wait for the email → read the OTP
$ curl -X POST https://login.ollastack.com/api/mailboxes \
    -H "Authorization: Bearer fmd_<token>" \
    -d '{"name":"signup-ci","mode":"test"}'
$ curl "https://login.ollastack.com/api/mailboxes/$ID/wait?timeout=55" \
    -H "Authorization: Bearer fmd_<token>"
live · no token needed 
# click Run — extracts the OTP, exactly like /wait + codes[0] in CI
/ DROP-IN CODE

One endpoint. Five ways to call it.

Same URL serves your AI agent, your static HTML form, your React app, your mobile client.

$ curl -X POST https://login.ollastack.com/api/submit/contact \
    -H "Authorization: Bearer fmd_<your-agent-token>" \
    -H "Content-Type: application/json" \
    -d '{"name":"Ada","message":"hi"}'

{"success": true, "id": "sub_8f2…", "country": "IN", "city": "Bengaluru"}
# tagged in the inbox with the agent's label
# every call recorded in the audit log
$ curl -X POST https://login.ollastack.com/api/submit/contact \
    -H "Content-Type: application/json" \
    -d '{"name":"Ada","message":"hi"}'

{"success": true, "id": "sub_8f2…"}
await fetch("https://login.ollastack.com/api/submit/contact", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({ name, email, message }),
});
<form action="https://login.ollastack.com/api/submit/contact" method="POST">
  <input name="email" type="email" required/>
  <textarea name="message" required></textarea>
  <button>Send</button>
</form>
import { useForm } from "@ollastack/react";

export function Contact() {
  const [state, handleSubmit] = useForm("contact");
  if (state.succeeded) return <p>Thanks!</p>;
  return (
    <form onSubmit={handleSubmit}>...</form>
  );
}
/ TWO-MINUTE ONBOARDING

From API key to your first agent submission in two minutes.

Three small steps. One curl block. Your agent is sending real submissions before your coffee cools.

1
step 1 · 30 seconds

Create a form

Sign up, click Create form, name it. Your endpoint URL is yours immediately.

→ create your first form
2
step 2 · 60 seconds

Connect your agent

One click mints a scoped, audited token and hands you a paste-ready agent prompt.

→ connect your agent
3
step 3 · 30 seconds 🤖

Your agent POSTs

One Bearer-authed POST and the submission lands in your inbox, tagged with the agent's label.

→ docs#fetch
/ WHY AGENTS PICK THIS

Core features, on every plan.

Designed for AI-agent traffic from the ground up.

Bearer tokens built for agents
Agent-typed tokens with a label, an audit log of every call, and a 🤖 stamp on the submissions they create. Scoped to your account. Revocable in one click.
Spam pipeline that respects authorisation
Honeypot, rate limits, and CAPTCHA apply to anonymous browser traffic. Bearer-authed agent submissions skip them — the token is the trust boundary.
Never lose a lead
Nothing is silently dropped. Every submission blocked by spam or validation is logged and reviewable — un-flag and re-send in one click.
Self-describing API
Public /api/openapi.json — CORS-open, machine-readable. Agent frameworks consume it directly to discover endpoints and response shapes.
Idempotency + signed webhooks
Idempotency keys on every submit. HMAC-signed webhooks with full delivery history, auto-retry with backoff, and one-click replay.
Email + 1,000+ integrations
Slack, Discord, Telegram, Google Sheets, Mailchimp native — no Zapier subscription. Anything else via Zapier, Make, n8n, Activepieces.
/ PRICING

Simple, transparent pricing.

Every tier includes the same core features — the monthly submission cap is the main difference. No overage charges.

Free

For testing & personal sites

$ 0 / month
  • ✓ 50 submissions / month
  • ✓ Unlimited forms
  • ✓ GEO-stamped leads
  • ✓ 1 agent token
  • ✓ Spam filtering
Get started free
Most Popular

Solo

For indie hackers & builders

$ 9 / month
  • ✓ 500 submissions / month
  • ✓ Unlimited forms & webhooks
  • ✓ Full Agent Mail & Test Inboxes
  • ✓ 5 agent tokens + audit log
  • ✓ Slack & Discord integrations
  • ✓ AI Lead Enrichment built-in
Start 14-day trial

Team

For fast-growing agent apps

$ 29 / month
  • ✓ 5,000 submissions / month
  • ✓ Unlimited team members
  • ✓ Unlimited agent tokens
  • ✓ Priority support & custom domains
  • ✓ Dedicated IP for Agent Mail
Get Team plan

Ready to give your AI agents a real backend?

Get started in two minutes. No credit card required.

Start free → Read the docs