Headlessly

Every mutation is an event. Every state is reconstructable. Nothing is ever lost.

Immutable Event Log

Every mutation appends to an immutable log:

Contact.Created   → { id, name, email, stage: 'Lead' }
Contact.Qualified → { id, stage: 'Lead' → 'Qualified', qualifiedBy: 'agent_1' }

Events are never deleted or modified.

Time Travel

Reconstruct any point in time:

import { $ } from '@headlessly/sdk'
import { Contact } from '@headlessly/crm'

const contacts = await Contact.find(
  { stage: 'Lead' },
  { asOf: '2026-01-15T10:00:00Z' }
)

await Contact.rollback('contact_uLoSfycy', { asOf: '2026-02-06T15:00:00Z' })

Subscriptions

Code-as-Data (~0ms)

import { Deal } from '@headlessly/crm'

Deal.closed((deal, $) => {
  $.Subscription.create({ plan: 'pro', contact: deal.contact })
})

WebSocket (~10ms)

import { $ } from '@headlessly/sdk'

$.events.subscribe('Contact.Qualified', event => {
  console.log(`${event.entity.name} was qualified`)
})

Webhook (~100ms)

import { Workflow } from '@headlessly/platform'

await Workflow.create({
  trigger: 'Deal.Closed',
  action: 'webhook',
  url: 'https://my-app.com/hooks/deal-closed',
})

Metric Watches

React when numbers cross thresholds:

import { Metric } from '@headlessly/analytics'
import { Campaign } from '@headlessly/marketing'

Metric.watch('churn_rate', { threshold: 3.0, direction: 'above' }, () => {
  Campaign.create({ name: 'Win-back', type: 'Email', segment: 'churning' })
})

Alerts

The status endpoint surfaces anomalies agents can act on:

import { $ } from '@headlessly/sdk'

const { alerts } = await $.status()
// [{ type: 'churn_spike', severity: 'high', action: 'retain' }]

Events & Time Travel