Integration observability platform

Keep your
systems
on keel.

Real-time observability for integrations, workflows, and AI pipelines. Know when something should have happened — and didn't.

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payment-flow.ts

import { upkeel } from '@upkeel/sdk'

const keel = upkeel.init('uk_live_••••••••')

// Charge the card — Stripe will send a webhook
await stripe.charges.create({ amount: 9900, currency: 'usd' })

// That webhook MUST arrive within 30 seconds
keel.expect('payment.succeeded', { within: '30s' })

// In your webhook handler, confirm it arrived
app.post('/webhooks/stripe', (req) => {
  keel.fulfill('payment.succeeded', { id: req.body.id })
})

The problem

200 OK doesn't mean it worked.

APIs respond. Logs look clean. Systems say healthy. But somewhere downstream, the webhook never arrived, the workflow stalled halfway, and your customer found out before you did.

Silent failures

Webhooks drop. Workflows partially complete. Events disappear into queues and never emerge. Traditional monitoring sees none of it — everything looks fine at the API level.

Workflow blindness

You know your API responded. You have no idea if the downstream outcome materialized — subscription activated, order fulfilled, email delivered, agent task completed.

Reactive discovery

Your customers report the failure before your monitoring fires. Support tickets, churned accounts, emergency Slack threads. The damage is done before anyone knew to look.

Platform

Everything you need to know what's actually happening.

Upkeel sits between your systems and your team — tracking expectations, detecting gaps, and surfacing the truth about integration health in real time.

⚡

Expectation engine

Declare what should happen and when. keel.expect('payment.succeeded', { within: '30s' }) — if it doesn't arrive, Upkeel fires immediately.

🔍

Flow visibility

See every step of every workflow execution in real time. Identify exactly which step stalled, which event never fired, which integration started degrading.

🤖

AI pipeline observability

Monitor multi-step agent workflows end-to-end. Detect silent tool call failures, dropped context, and sub-tasks that need human escalation.

🔄

In-app status reactions

Your application automatically reacts to integration health — disable checkout, show fallback UI, pause queues — without waiting for anyone to read an alert.

🧪

First-class testing

@upkeel/testing makes it trivial to assert on flow behavior, simulate known failure scenarios, and advance virtual time in tests.

🛡️

SOC 2 ready by design

Immutable audit logs, configurable retention tiers per customer, RBAC, and encryption at rest — built in from day one, not bolted on later.

Examples

Works with the stacks you already use.

A few lines of instrumentation, and Upkeel starts detecting failures in your most critical flows.

import { upkeel } from '@upkeel/sdk'

const keel = upkeel.init('uk_live_••••••••')

async function checkout(order) {
  await validateOrder(order)
  await stripe.charges.create({ amount: order.total })

  // Stripe webhook must arrive within 30s
  keel.expect('payment.succeeded', {
    within: '30s',
    meta: { orderId: order.id }
  })
}

// Webhook handler — tell Upkeel the event arrived
app.post('/webhooks/stripe', (req) => {
  keel.fulfill('payment.succeeded', {
    id: req.body.payment_intent
  })
})

// Only send the receipt AFTER the webhook confirms
keel.on('payment.succeeded', 'fulfilled', (event) => {
  email.send(event.meta.orderId, 'receipt')
})

// If webhooks stop arriving, protect your customers
keel.on('payment.succeeded', 'failing', () => {
  checkout.disable()
  banner.show('Payments temporarily unavailable')
})

import { upkeel } from '@upkeel/sdk'

const keel = upkeel.init('uk_live_••••••••')

async function dispatchResearch(query) {
  // Kick off the agent
  const taskId = await orchestrator.dispatch(query)

  // Each stage must complete within its window
  keel.expect('research.sources.ready', {
    within: '30s',
    meta: { taskId }
  })
  keel.expect('research.analysis.complete', {
    within: '2m',
    after: 'research.sources.ready'
  })
  keel.expect('research.report.delivered', {
    within: '5m',
    after: 'research.analysis.complete',
    onMiss: 'escalate-to-human'
  })
}

// Agents fulfill expectations as they finish
agent.on('sources:ready', (task) => {
  keel.fulfill('research.sources.ready', { taskId: task.id })
})

// If the pipeline stalls, stop sending it more work
keel.on('research.report.delivered', 'failing', () => {
  queue.pause()
  ops.alert('Agent pipeline stalled — check sub-agents')
})

import { upkeel } from '@upkeel/sdk'

const keel = upkeel.init('uk_live_••••••••')

async function placeOrder(order) {
  await inventory.reserve(order.items)

  // Downstream systems must complete their jobs
  keel.expect('warehouse.pick.confirmed', {
    within: '4h',
    meta: { orderId: order.id }
  })
  keel.expect('shipping.label.created', {
    within: '6h',
    after: 'warehouse.pick.confirmed'
  })
  keel.expect('carrier.pickup.scanned', {
    within: '24h',
    after: 'shipping.label.created'
  })
}

// Warehouse API confirms the pick
warehouse.on('pick:complete', (pick) => {
  keel.fulfill('warehouse.pick.confirmed', { orderId: pick.orderId })
})

// If fulfillment slows down, tell customers before they ask
keel.on('warehouse.pick.confirmed', 'failing', () => {
  storefront.showDeliveryDelay()
  ops.page('fulfillment-oncall')
})

Use cases

Built for integration-heavy applications.

Any time one system needs to know that another system actually did something — Upkeel verifies it happened.

Payments

Stripe webhook reliability

Payment webhooks fail silently at a rate that surprises most teams. Upkeel detects delivery failures before customers notice subscriptions didn't activate or refunds didn't process.

3.2% of Stripe webhooks fail silently in production. Avg discovery time without Upkeel: 4+ hours.

AI Agents

Agent workflow correctness

LLM tool calls succeed but execute nothing. Sub-agents complete tasks that the orchestrator never receives. Upkeel monitors the complete end-to-end outcome — not just the API response.

Agentic pipelines have 2–8× higher silent failure rates than traditional integrations.

Operations

Order fulfillment pipelines

Warehouse confirmation never arrived. Carrier label was never created. Customer is waiting. Upkeel catches every missing step in your fulfillment chain — before it becomes a support ticket.

MTTD drops from 4+ hours to <30 seconds with Upkeel.

We were losing $40k a month to failed Stripe webhooks we didn't know about. The kind of thing you discover in a postmortem, not a dashboard. This is exactly the tool I wish we'd had.

A Concerned Entrepreneur

Could be you — join the waitlist

Join the waitlist

Start knowing what's actually happening.

Five minutes from npm install to your first integration health check.