What does it cost to build an app?

Nothing. Connect with Splashify Pro is free for developers. Each message your app sends is charged to the connected customer's own wallet or account at their normal rates.

Which customers can connect my app?

Account owners of app.splashifypro.com accounts whose plan includes API access and who have a WhatsApp number connected. Team members cannot connect apps.

Can my app work right away?

Yes. A new app is live at once for up to 25 connected accounts and 500 sends a day per account. Customers see it as from an unverified developer. Apply for review to remove these limits.

How do I get the verified badge?

Open your app's Permissions tab and complete the review list: a logo, your homepage, privacy policy and terms links, a support email, a reason for each permission that needs one, and your company details. Then submit it for review. We check the app and your company by hand, and we email you when the review is done.

Is there a sandbox or test mode?

No. Test with a Splashify Pro account you own, through the normal consent screen. It counts toward your app's limits, and the messages it sends are charged to that account.

How does my app know a message was delivered?

Ask the message status endpoint with the message ID. Connected apps do not get webhooks. If you build only for your own account, your API key can use webhooks instead.

What happens when a customer removes my app?

Your app loses access at once. Your next API call gets a 401 error and your next refresh fails. Ask the customer to connect again if they want to.

Is it standard OAuth?

Yes. It is the OAuth 2.0 authorization code flow with PKCE. Access tokens last 1 hour. Each refresh gives you a new refresh token, and the old one stops working. A refresh token that is not used for 90 days expires.

Can I build a mobile app or a browser-only app?

Your server must hold the client secret and make the token calls. Never put the secret in a browser or a mobile app. Your mobile or web app can send users to the consent page and talk to your server.

Are there rate limits?

Yes. Each connected account can make 600 API calls a minute, and each app 1,200 a minute (12,000 when verified). Calls to the WhatsApp API also share the customer's plan limit with their own API key. If your verified app needs more, write to support@splashifypro.in.

WhatsApp API for developers

Build WhatsApp into your product

Send WhatsApp messages and email from your code with one API. Building for many businesses? Add a Connect Splashify Pro button. Each business connects its own account in one click, and can remove your app at any time.

Create a developer account Read the quick start

Free developer account
No Splashify Pro account needed to sign up
Customers pay for their own messages

Illustration

Your app

Integrations

Send order updates from your customer's own number

Connect Splashify Pro

Customer clicks Allow

Your server

# After the customer clicks Allow
POST /api/v1/public/message HTTP/1.1
Host: api.splashifypro.com
Authorization: Bearer ACCESS_TOKEN
Content-Type: application/json

{"countryCode": "+1",
 "phoneNumber": "5550101234",
 "type": "Template",
 "template": {"name": "order_update",
   "languageCode": "en",
   "bodyValues": ["Alice", "#1042"]}}

Choose your path

Four ways to build with Splashify Pro

Pick the one that fits what you are making.

For your own business
Use the API key from Settings > Developer in your Splashify Pro account. Send WhatsApp messages and email from your own code, and get webhooks for replies and delivery.
For SaaS apps many businesses use
Add a Connect Splashify Pro button to your CRM, booking tool or shop builder. Each customer signs in, clicks Allow, and your server gets a token for only what they allowed. Agencies can build once for many clients.
With AI assistants
Connect Claude, ChatGPT, Cursor and other AI assistants to a Splashify Pro WhatsApp account with one link. No code and no developer account needed. Needs a plan with API access.
With ready integrations
Connect Shopify, WooCommerce, HubSpot, Google Sheets, Zapier and more to WhatsApp. Most tools need no code.

Not sure which way fits your product?Talk to our team

What you can build

Put WhatsApp inside your SaaS product

A few ideas. Each one uses permissions that exist today.

CRM: a message when a deal moves
Send an approved WhatsApp template from the customer's own number when a deal changes stage.
Booking tool: reminders
Send booking reminders and changes on WhatsApp, and check that each one was delivered.
Shop builder: order updates
Send order and delivery updates from the store's own WhatsApp number.
Lead forms: new contacts
Add each new lead as a contact with tags and notes, ready for the team to reply.
Reports: template results
Show sent, delivered and read counts for each template inside your dashboard.
Sales tools: pick a template
Show the customer's approved WhatsApp templates in your app, so their team can pick one and send it.

See every permission

How Connect with Splashify Pro works

From sign-up to the first message in four steps

It uses standard OAuth 2.0 with PKCE. If you have added a Sign in with button to an app before, this works the same way.

Steps 1 and 2

Create a free developer account and register your app

Sign up at dev.splashifypro.com. You do not need a Splashify Pro business account. Then name your app, add your redirect URLs and tick the permissions you need. You get a Client ID and a client secret. We show the secret only once.

Up to 10 apps per developer account
Up to 10 redirect URLs
Two secrets at a time, so you can change them with no downtime
Turn on two-step sign-in with an authenticator app

The Permissions card of the New app page in the developer console for Demo CRM: Send WhatsApp messages and See your WhatsApp message templates ticked, and each permission with its tag, such as Always included, Needs a reason for review and Verified apps only

Steps 3 and 4

Your customer clicks Allow. You send for them.

Your Connect Splashify Pro button sends the customer to our sign-in page. They see your app's name, whether we have verified it and what it can do, in plain words, then click Allow. Your server swaps the code for tokens and calls our API with their access token. Each message goes from their number and is charged to their wallet.

Only the account owner can allow an app
New apps show as from an unverified developer until review
Access tokens last 1 hour. Refresh before the hour is up.
They can remove your app at any time in Settings, Connected apps

The Connected page after Allow: Demo CRM is now connected to your Splashify Pro account, taking you back to example.com, with a Continue link

Quick start

The whole flow in four calls

Replace the words in capitals with your own values.

Authorize

// 1. Send your user here.
const url = new URL("https://app.splashifypro.com/oauth/authorize");
url.search = new URLSearchParams({
  response_type: "code",
  client_id: "YOUR_CLIENT_ID",
  redirect_uri: "https://yourapp.example/splashify/callback",
  scope: "whatsapp.messages:send whatsapp.templates:read",
  state: RANDOM_STATE,
  code_challenge: CHALLENGE,
  code_challenge_method: "S256",
}).toString();
res.redirect(url.toString());

Get tokens

# 2. Swap the code for tokens on your server, within 60 seconds
curl -X POST https://api.splashifypro.com/api/v1/oauth/token \
  -u "YOUR_CLIENT_ID:YOUR_CLIENT_SECRET" \
  -d grant_type=authorization_code \
  -d code=CODE_FROM_REDIRECT \
  -d redirect_uri=https://yourapp.example/splashify/callback \
  -d code_verifier=VERIFIER

Send

# 3. Send a template from your customer's number
curl -X POST https://api.splashifypro.com/api/v1/public/message \
  -H "Authorization: Bearer ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "countryCode": "+1",
    "phoneNumber": "5550101234",
    "type": "Template",
    "template": {
      "name": "order_update",
      "languageCode": "en",
      "bodyValues": ["Alice", "#1042"]
    }
  }'

Refresh

# 4. Refresh before the hour is up. Save the new refresh token every time.
curl -X POST https://api.splashifypro.com/api/v1/oauth/token \
  -u "YOUR_CLIENT_ID:YOUR_CLIENT_SECRET" \
  -d grant_type=refresh_token \
  -d refresh_token=REFRESH_TOKEN

Quick start
Every step, with a Node.js sample.
Tokens
Lifetimes, refresh and errors.
API reference
The full reference for every endpoint.

APIs and webhooks

One API for WhatsApp and email

Call it with your own API key, or from a connected app with your customer's access token. Here is what each can do today.

What you can call with an API key and from a connected app
What	With your API key	From a connected app
Send WhatsApp messages and templates	Yes	Yes
Check message delivery	Yes, or by webhook	Its own messages
Add contacts, tags and notes	Yes	Yes
Read contacts	Yes	Verified apps only
Read templates and results	Yes	Yes
Send email	From your account	No
Webhooks for events	Yes	No
Meta Conversions API events	Yes	No

Connected apps check delivery by asking. They do not get webhooks.
Your plan sets the per-minute API limit. A connected app shares the limit of the customer's plan, and also has its own limits.

Send with your API key

curl -X POST https://api.splashifypro.com/api/v1/public/message \
  -H "Authorization: Basic YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "countryCode": "+1",
    "phoneNumber": "5550101234",
    "type": "Template",
    "template": {
      "name": "order_update",
      "languageCode": "en",
      "bodyValues": ["Alice", "#1042"]
    }
  }'

curl -X POST https://api.splashifypro.com/api/v1/public/email/send \
  -H "Authorization: Basic YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "[email protected]",
    "subject": "Your order #1234 is confirmed",
    "html": "<h1>Order confirmed</h1><p>Thank you, Alice. Your order ships in 2 business days.</p>",
    "from_name": "Demo Store",
    "from_email": "[email protected]"
  }'

Webhooks

Get incoming messages, delivery, read and failed updates, button clicks, template status changes, opt-outs and wallet alerts on your server. Each event is signed with HMAC-SHA256 in the X-Splashify-Signature header.

Webhook docs

Read the API docs

Permissions

Your customers see every permission in plain words

Ask only for what your app needs. The customer allows all of them or none. Write access does not include read access.

Account, messages and templates

See your business name and account ID
account:read
Always included
Send WhatsApp messages from your business number. Each message is charged to your wallet at your normal rates.
whatsapp.messages:send
Needs a reason
See your WhatsApp message templates
whatsapp.templates:read
Any app
See how your templates perform
whatsapp.reports:read
Any app

Contacts

Add and update your contacts, their tags and notes
whatsapp.contacts:write
Needs a reason
See your contacts and their phone numbers
whatsapp.contacts:read
Verified apps only

Any app: any app may ask. Needs a reason: say why when you apply for review. Verified apps only: works after your app is verified.

Permissions guide

App review

Live at once. Verified after review.

Your app works as soon as you create it, with limits. Apply for review to get the verified badge and remove the limits. We check the app and your company by hand.

New apps compared with verified apps
	New app	Verified app
Works for customers	At once	Yes
Connected accounts	Up to 25	No limit
Sends a day, per account	500	No limit
Read contacts	No	Yes
API calls a minute, per app	1,200	12,000
Shown to customers	Unverified developer	Your legal name and a badge

What review needs

A square logo, at least 256 by 256 pixels
Links to your homepage, privacy policy and terms
A support email
A reason for each permission that needs one
Your company details: legal name, website and country

If you change your app's name, logo, homepage, privacy or terms link or support email, add a permission, or add a redirect URL on a new host, the badge comes off until we check the app again. Your limits stay the same meanwhile. Customers can report an app, and we read every report.

App review guide

AI assistants

Your customers can also ask their AI assistant

Splashify Pro works with Claude, ChatGPT, Cursor, VS Code and other AI assistants. Account owners add one link, sign in and click Allow. No developer account or code is needed. It works with WhatsApp accounts on a plan with API access.

Connector link

https://mcp.splashifypro.com/mcp

For coding
Add the same link to Claude Code, Cursor or VS Code. Then ask about your own account while you build: templates, delivery and wallet.
Prefer the terminal?
The splashify CLI runs your own account from the command line with a personal access token.

See how AI assistants work

Pricing

Free for developers

You pay nothing to build or run your app. Your customers pay their normal message prices from their own account.

Free developer account
Sign up, register up to 10 apps and connect customers at no cost.
Customers pay for their messages
Each message your app sends is charged to the connected customer's wallet or account at their normal rates. Nothing is charged to you.
What your customers need
A Splashify Pro plan with API access and a connected WhatsApp number.

Testing? Connect a Splashify Pro account you own. It counts toward your app's limits, and its messages are charged to it.

See plans and pricing

Questions developers ask

The docs cover every step, with code.

Read the Connect docs

No. The developer account is free and separate from Splashify Pro business accounts. To test your app, connect a Splashify Pro account you own. Its plan must include API access.