The celebration infrastructure layer for software products

Turn your users' milestones into meaningful experiences.

Add birthday, anniversary, and milestone celebrations in your product without building the scheduling, personalisation, timezone logic, or delivery stack yourself.

Connect your existing user data. Configure the celebration experience once. PeopleWisher handles personalization, scheduling and delivery.

Request API access See how it works

API·Database Sync·Private Connector

        
        celebrate.js
      

await peoplewisher.celebrate({
  user_id: "usr_8821",
  event:   "birthday",
});
      
That's it.
Template selection
Personalization
Scheduling
Timezones
Channel delivery
Delivery tracking

await peoplewisher.celebrate({
  user_id:  "usr_8821",
  event:    "birthday",
  channels: ["email", "whatsapp"],
  template: "birthday_vip",
  send_at:  "09:00",
});
        

The product model

Everything you'd need,already built.

Skip months of engineering. PeopleWisher gives you a complete celebration engine out of the box.

Configure the experience once in PeopleWisher.

Your application simply tells us what happened. API requests use your saved defaults automatically, advanced users can override any setting per request.

Templates

Personalization

Multichannel delivery

Delivery timing

Timezone intelligence

Scheduling rules

Reports & Analytics

Branding & Celebration graphics

Configured once in the PeopleWisher dashboard · applied automatically to every event

Request → experience

Developer sends the event

A single call, like celebrate(user_id, event) no copy, no campaign logic.

PeopleWisher applies the template

Pulls the configured template for this milestone and audience.

Applies personalization

Fills in name, tenure, milestone details and other dynamic tokens.

Determines timing

Resolves send time against the recipient's timezone and your rules.

Selects delivery channels

Routes to email, SMS or WhatsApp per your configuration.

Delivers and reports status

Fires a webhook with delivery status your systems can act on.

Integration options

Bring your data. We'll handle the celebration.

PeopleWisher works with the way your product already stores user data, pick the model that fits your architecture.

Your product

Where user & milestone data lives

Connection

APIDatabase syncPrivate connector

PeopleWisher

PeopleMilestonesPersonalizationTemplatesScheduling

Delivery

Email · SMS · WhatsAppMore channels soon

Push data through the API

Your application sends users, milestone dates and events directly to PeopleWisher.

Best for startups, SaaS products and API-first applications

Your app PeopleWisher API Celebration engine Delivery

sync.js

await peoplewisher.contacts.upsert({
  id:        "usr_8821",
  first_name:"Amaka",
  email:     "[email protected]",
  birthday:  "1996-04-12",
  timezone:  "Africa/Lagos",
});

await peoplewisher.celebrate({
  user_id: "usr_8821",
  event:   "birthday",
});
        

Connect your existing database

Already have thousands or millions of users? Don't rebuild your data pipeline. Connect PeopleWisher to the relevant database, map your fields once, and let PeopleWisher monitor the dates and data your celebrations need.

Best for products with an existing user database

Read-only access

Encrypted connection

Scoped to mapped fields only

Access can be revoked anytime

users→ PeopleWisher field

idPerson ID

first_nameFirst name

emailEmail

phonePhone

birthdayBirthday

timezoneTimezone

Keep your database behind your infrastructure

Run the PeopleWisher connector inside your own infrastructure. It connects to your database locally and securely exposes only the mapped data PeopleWisher needs — your data never has to sit in a third-party connection string.

Best for enterprise, fintech, healthcare and security-conscious teams

Runs inside your network

Outbound HTTPS only

Only mapped fields exposed

Revocable at any time

Your infrastructure

↔

Database Connector

Secure HTTPS · outbound only

PeopleWisher

Engineering cost

Stop rebuilding relationship infrastructure.

Every product eventually needs this. Most engineering teams waste time building and planing maintenance.

Without PeopleWisher

Cron jobs to check dates every day
Date tracking and storage
Timezone and DST calculations
A template system
Personalization logic
Scheduling and retry handling
Email, SMS and WhatsApp delivery
Delivery tracking and reporting
Milestone automation, maintained forever

Your engineering team owns and maintains all of this.

With PeopleWisher

One integration - API, database sync or private connector
Scheduling, timezones and retries handled for you
Templates and personalization configured once
Email, SMS and WhatsApp delivery included
Delivery status reported back via webhook

One integration. Nothing to maintain.

Try it

What do you want to celebrate?

Any product event with a relationship worth strengthening can become a PeopleWisher milestone. Pick one to see how it flows through.

Event name

Trigger type

Channels

Email SMS WhatsApp

Birthday

celebrate(user_id, event: "birthday")

Amaka Johnson

[email protected]

Hi Amaka, wishing you a wonderful birthday from everyone on the team. Here's to another great year.

delivered · 8:00 AM local time

Who it's for

Any product with a relationship worth strengthening.

Not just birthdays — any moment your product already knows about.

Birthdays

A personal moment, delivered automatically on the right day.

Customer anniversaries

Mark the day someone became a customer, every year.

First purchase

Welcome new customers the moment they convert.

Loyalty milestones

Recognize repeat behavior with a timely message.

Subscription anniversaries

Celebrate a year, or five, of continued subscription.

Birthdays

Employee birthdays, surfaced to the team automatically.

Work anniversaries

Recognize tenure without a manual reminder in someone's calendar.

Promotions

Mark career milestones as they happen.

Service milestones

Five years, ten years — celebrated consistently, every time.

Membership anniversaries

Recognize how long someone has been part of the community.

Achievements

Celebrate badges, ranks and community contributions.

Participation milestones

Mark a hundredth post, a first event, a first contribution.

Account anniversaries

The day someone signed up, remembered every year.

Usage milestones

Thresholds crossed — projects created, tasks completed, hours logged.

Major achievements

In-product accomplishments worth acknowledging.

Personal accomplishments

Anything your product already tracks that matters to the user.

Used across

FintechHR platformsE-commerceEdTechHealthcareCRMs

Delivery channels

Reach users wherever they are.

Specify channels per contact or per event. PeopleWisher routes, retries, and reports on every message.

HTML templates, custom SMTP, open tracking

Live

WhatsApp Business API, rich media support

Live

SMS

Global delivery, custom sender ID

Live

Webhook

Trigger any external system via HTTP

Live

Push notifications

Mobile push, in your app

Coming soon

In-app

Render celebrations inside your own UI

Coming soon

Team channels

Announcements for internal team tools

On the roadmap

Additional channels under evaluation

On the roadmap

Data architecture

Built to work with your data architecture.

Three ways to connect, so your team never has to choose between shipping this and keeping control of your data.

API-first

You send exactly what you want stored, when you want it stored. No standing connection to your systems.

Read-only database connection

A scoped, read-only connection to the fields you map — nothing else is visible to PeopleWisher.

Private connector

Runs inside your own infrastructure and only exposes mapped fields over outbound HTTPS.

Scoped access

Only the fields you map are ever read.

Field mapping

Set once in the dashboard, adjustable anytime.

API key management

Separate test and live keys, revocable individually.

Environment separation

Sandbox traffic never touches real contacts.

Encryption in transit

All connections are encrypted end to end.

Auditability

Delivery and access events are logged and reportable.

Revocation

Disconnect a database or connector at any time.

Read-only by default

PeopleWisher never writes back to your database.

We describe capabilities we've actually implemented. We don't claim compliance certifications we don't hold — ask us directly about your specific requirements during onboarding.

FAQ

Developer questions answered

When you sync a contact, you pass their IANA timezone (e.g. Africa/Lagos). PeopleWisher schedules delivery at your configured time in that timezone — DST is handled automatically. You can override per contact or per event. No crons on your end.

Yes. You connect your WhatsApp Business API account so messages come from your brand's number. For SMS, you supply your sender ID — like ACME-CORP — and your preferred provider, or use PeopleWisher's built-in routing.

Yes. Test API keys (pw_test_...) route all messages to a sandbox — no real contacts are touched, no real messaging costs incurred. Webhooks fire as normal so you can test your full integration. Safe to run in CI.

No. Templates, personalization, timing and channels are configured once in the dashboard against each milestone type. Your application only needs to send user_id and event — everything else uses your saved defaults unless you explicitly override it.

Pricing is discussed during onboarding and structured around contact volume and delivery channels. A base fee covers the infrastructure — scheduling, templates, timezone logic, webhooks, email delivery. SMS and WhatsApp are charged per message. Contact us with your estimated volume for a quote.

PeopleWisher retries failed messages for transient errors. For permanent failures — invalid number, blocked — a message.failed webhook is fired with a reason code so you can handle it in your system.

Yes. Date-based celebrations run automatically every year once configured. You can also trigger a celebration via a direct API call — useful for events like account upgrades, first purchases, or subscription milestones that happen at unpredictable times.

Yes. POST /v1/contacts/batch accepts up to 1,000 contacts per request. For larger migrations, upload a CSV directly from the dashboard, or use database sync. Duplicate detection and upsert behaviour are configurable.

We're onboarding developers, startups and engineering teams directly so we can help set up field mapping, templates and delivery channels correctly the first time. Request access below and we'll be in touch within 48 hours to get you integrated.

Turn your users' milestones into meaningful experiences.

Everything you'd need,already built.

Bring your data. We'll handle the celebration.

Push data through the API

Connect your existing database

Keep your database behind your infrastructure

Stop rebuilding relationship infrastructure.

What do you want to celebrate?

I'm a...

Any product with a relationship worth strengthening.

Reach users wherever they are.

Built to work with your data architecture.

Developer questions answered

Your users already have important moments.
Start celebrating them.

Turn your users' milestones into meaningful experiences.

Everything you'd need,already built.

Bring your data. We'll handle the celebration.

Push data through the API

Connect your existing database

Keep your database behind your infrastructure

Stop rebuilding relationship infrastructure.

What do you want to celebrate?

I'm a...

Any product with a relationship worth strengthening.

Reach users wherever they are.

Built to work with your data architecture.

Developer questions answered

Your users already have important moments.Start celebrating them.

Your users already have important moments.
Start celebrating them.