Now on iOS 26

A calmer way to check on your APIs.

Hum is a native iOS API client and monitor. Watch your endpoints, get a gentle nudge when something needs you, and import whole collections in seconds — right from your phone.

✦ 7-day free trial ✦ Then $4.99/mo ✦ No account required to try
9:41
TUESDAY
Afternoon, Todd.
3 OF 4 HEALTHY 14:42
Checkout API is down.
3 endpoints still humming · failing for 4 min
Checkout API
api.shop.io/v2/checkout
502
just now
Auth Service
auth.shop.io/health
89ms
1 min ago
Image CDN
cdn.shop.io/status
488ms
3 min ago
Search API
api.shop.io/search
112ms
2 min ago
The pain

Postman on a phone is a bad time.

You're away from your laptop. The team Slack is asking if the API is up. You don't want to open a 200MB desktop app or paste a curl into a browser console — you just want to know if it's humming.

Before Hum

Cobbling it together

  • Tab through five tools to send one request
  • No way to keep an eye on prod from your phone
  • Find out something's down from a customer
  • Re-paste the same auth header 20 times a day
  • Postman's mobile experience: there isn't one
With Hum

One quiet glance

  • Send any request from your phone in two taps
  • Watch endpoints in the background, see status on your home screen
  • A gentle ping the moment something drifts
  • Auth, variables, and headers — set once, applied everywhere
  • Import Postman collections and curl commands in seconds
Why you'd use it

Built for the in-between moments.

Hum is what you reach for when you don't have your laptop but you do have a hunch.

Always-on monitoring

Set any request as a watch. Hum pings it on a schedule and tells you when latency, status, or shape of the response changes.

Home-screen widget

Three sizes, paged with App Intents. See "everything's humming" or "one thing needs you" without unlocking your phone.

Smart Import

Paste a URL, a curl command, or a Postman collection. On-device AI turns it into a clean, runnable request — no copy-paste tax.

Type-aware response viewer

IDs render as pills. Dates as relative time. Money in the right currency. JSON, but readable on a 6-inch screen.

Auth that just works

Bearer, Basic, API Key. Variables and secrets are stored once, masked, and injected at send time. Never paste a token into a tweet again.

Native, fast, quiet

Pure SwiftUI on iOS 26. No Electron, no web view. Boots in a blink and respects your battery.

Screens

Designed to feel like a deep breath.

A response viewer that reads like prose.

Pretty, Raw, and Headers tabs. IDs become tappable purple pills. Timestamps become "2 minutes ago". Money lands in the right currency. The JSON is still there if you want it — but you rarely do.

  • Pretty / Raw / Headers tabs
  • Latency, size, and status at a glance
  • Tap an ID to chase it across endpoints
9:41
GET /v1/customers/cus_NffrFe… Send
200
OK
142ms
Latency
1.4kb
Size
Pretty Raw Headers
{
"id": cus_NffrFe,
"object": "customer",
"email": ,
"balance": $24.50,
"currency": "usd",
"created": 2 hours ago,
"livemode": true,
"name": "Jenny Rosen"
}
9:41
Smart Import a URL.
Paste anything. We'll figure it out.
URL
https://api.stripe.com/v1/charges
Reading the docs…
On-device · ~2s
Found 6 endpoints✓ Ready
GET
List charges
/v1/charges
POST
Create charge
/v1/charges
GET
Retrieve charge
/v1/charges/{id}

Smart Import: paste, done.

Drop in a URL, a curl, or a whole Postman collection. On-device AI does the cleanup — auth headers, body shape, sensible names. You get back something you can actually run.

  • URL → working request, on-device
  • Postman v2.1 collections, faithfully
  • curl pastes, parsed and editable
Get Hum

Everything's about to hum.

Free for 7 days. $4.99/month after that. Cancel any time, from the app.

Download on the App Store

Requires iOS 26 or later · iPhone & iPad