Email + Automation
Transactional and marketing email from one API: templates, domains, and drip flows. Deliverability handled.
POST /v1/send
The growth stack for startupsOne API key.
One API key.
Every channel.
Email and AI marketing, AI video and images, social publishing to seven networks, push, WhatsApp OTP, currency and deep links. One key, one dashboard, one bill, from your first user to your millionth.
No card to startCancel anytimePush & deep links free
// one client, everything below import { startupaid } from "@startupaid/sdk"; const sa = new startupaid({ apiKey: "sa_live_…" }); // transactional + marketing email await sa.sendEmail({ to, subject, body }); // verify a number over WhatsApp await sa.sendOtp({ to, appId }); // a clip from a sentence, posted for you await sa.createVideo({ prompt, postTo: ["tiktok"] }); // convert at your own rate const fx = await sa.convert("USD", "GBP", 100); fx.spread.percent // → your margin
Why startups pick us
Priced for pre-seed. Built for scale.
You shouldn't need a platform team to send an email, verify a phone, or price a trade. Get production-grade infrastructure without the enterprise invoice.
Affordable
A real free tier on every product. Pay only for what you send, with no seats, no setup fees, no annual lock-in.
Reliable
Queued delivery with automatic retries, deliverability baked in, and a public status page. It just keeps sending.
Secure
Encryption in transit and at rest, and scoped, revocable API keys. Your customer data stays yours.
Simple
One key, one dashboard, first-class SDKs. Copy a snippet and ship your first message before your coffee's cold.
The stack
Ten products. One integration.
Every channel your product reaches customers through, behind a single bearer key. Turn on only what you need, when you need it, and leave the rest off.
WhatsApp OTP
One-time passcodes over WhatsApp with per-region senders, delivery tracking, and verification built in.
POST /v1/otp/send
Push Messaging FREE
iOS, Android and web push in a single send, free on every account with no volume cap. Bring your own FCM and APNs keys.
POST /v1/push/…/send
Currency API
Live rates for 230+ fiat & crypto, and set your own buy / sell spread. We return the market rate, your rate, and your margin.
GET /v1/convert
Social Automation
Schedule and auto-publish to X, LinkedIn, Instagram, Threads, Facebook, YouTube and TikTok, from one queue.
POST /v1/social/schedule
AI Video & Images
Describe a clip or a still and get it back in about a minute, from Veo, Seedance or Kling, then post it straight to social.
POST /v1/video/jobs
AI Marketing
Set the month’s goal, let campaigns and automations run, and see which sends produced customers rather than opens.
POST /v1/events
Deep Links FREE
Universal / App Links that open your app to the right screen, set up once, free for every account.
Association files + redirects
Built for fintech
Currency, with your margin baked in.
Set a buy and a sell margin per currency. Every conversion returns the live market rate, your customer rate, and exactly what you keep, so there's no client-side math and no way to leak spread.
- Asymmetric rates. Charge 20% when they buy, 10% when they sell, per currency, per direction.
- Tracks the market. Your margin rides on top of live rates, so it never goes stale.
- 230+ currencies, fiat and crypto: USD, GBP, USDT, USDC, EURC and more.
GBP → USDT your book
LIVE MARKETBUY USDT
+20%
SELL USDT
+10%
market $1,366.90you keep £273.38 / $100
Developer experience
Install, key, ship.
First-class SDKs that do the encoding for you: attachments, base64, retries. Or hit the plain REST API from any language. Prefer SMTP? Point your app at our relay with the same key.
$ npm i @startupaid/sdk copy
Go go get …/startupaid-goPython pip install startupaidMCP npx @startupaid/mcp
from startupaid import Client, attach_file sa = Client("sa_live_…") sa.send_email( from_="Acme <hi@acme.com>", to="ada@example.com", subject="Your invoice", body="<h1>Thanks 🎉</h1>", attachments=[attach_file("invoice.pdf")], ) # SMTP too → smtp.startupaid.org:587
Pricing
Start free. Scale one product at a time.
A free tier on every product, and each one priced on its own so you scale what you actually use. Push and deep links cost nothing at any volume. No seats, no setup fees.
Email + Automation
100k emails / mo
from $15/mo
AI Video & Images
250 AI credits / mo
from $4.99/mo
WhatsApp OTP
10k verifications / mo
from $19/mo
Push Messaging
iOS, Android, web · no volume cap
Free
Currency API
custom spreads · 230+ currencies
from $19/mo
Social Automation
7 networks · scheduled posts
from $25/mo
Loyalty & Rewards
points, tiers & leaderboards
from $29/mo
Deep Links
universal / app links
Free
Startup · all products
$19/mo
Or $15 a month billed annually · free for 14 days
- Every product included
- 10k emails · 100 WhatsApp OTPs / mo
- Unlimited push · 500 social posts / mo
- 10k currency calls / day · custom FX spreads
- One dashboard, one bill
No credit card required
Start
Grow on one key.
Create an account, grab your API key, and send your first message before your coffee's cold.