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Live now

API-first, down to the SIM.

Everything the dashboard does is an API call: buy data, provision eSIMs, rent numbers, send SMS, configure Tele Agent. Built for human developers — and for autonomous AI agents.

Live today

The developer platform is already open.

No sales call, no human-gated first project: sign in and mint your own API keys. The product endpoints (catalog, checkout, numbers, Tele Agent) are live — everything below works right now.

Self-serve API keys

Sign in with Firebase and mint esk_live_… keys instantly — scoped to a project (production, test, experiment), hash-stored, revocable in one call.

# mint a key
curl -X POST \
  https://api.esimgomobile.com/api/v1/keys \
  -H "Authorization: Bearer $FIREBASE_ID_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"name":"ci","project":"test"}'

Webhooks: com.esimgomobile.*

HTTPS endpoints, per-endpoint HMAC-SHA256 signatures (Stripe-style t=…,v1=…), at-least-once delivery with backoff, dead-lettering and replay. Billing, number provisioning, porting, calls, SMS, key and KYC events.

Number porting API

draft → information_required → pending → completed. The API tells you exactly which fields each country needs before you submit — submission is fail-closed until carrier onboarding completes.

KYC intake

Collect the identity documents carriers require per country. Verification stays honestly pending_verification until a verification vendor is configured — never a fake "verified".

Honest status page

Component states derived live from service configuration — never fabricated uptime percentages.

esimgomobile.com/status/ →

REST API

The v1 API contract — live now.

The product contract below is final for v1 and live on the platform. Authenticate with a bearer API key; every response is JSON.

MethodEndpointWhat it does
GET/api/catalogList live eSIM plans (country, data, validity, price)
POST/api/checkoutCreate a checkout session for a plan → returns payment URL
GET/api/accountOrders, lines, numbers and Tele Agent status
GET/api/qr?order_id=…Fetch or re-issue the eSIM QR / activation code
GET/api/balance?profile_id=…Live remaining data for an eSIM line
GET/api/numbers?country=…Search available virtual numbers
POST/api/numbers/purchaseRent a virtual number (monthly)
POST/api/teleagent/signupAttach Tele Agent to a number with business config
# list live eSIM plans
curl https://esimgomobile.com/api/catalog \
  -H "Authorization: Bearer $ESIM_API_KEY"

# → { "plans": [ { "id": "esim-jp-10gb-30d", "country": "Japan",
#     "data_gb": 10, "validity_days": 30, "price_usd": 24.9, ... } ] }

# check data balance on a line
curl "https://esimgomobile.com/api/balance?profile_id=prof_abc" \
  -H "Authorization: Bearer $ESIM_API_KEY"

# → { "profile_id": "prof_abc", "remaining_mb": 6240,
#     "total_mb": 10240, "percent": 61 }
Developer surface

Four ways to build.

SDKs

Live: idiomatic JavaScript and Python clients covering every live route — keys, webhooks, porting, KYC, status. Tested, versioned, on GitHub.

Status: live

CLI

Live: the esim CLI scripts everything from the terminal — esim keys issue, esim webhooks register, esim portings create, esim kyc verify. Made for automation and agents.

Status: live

MCP server

A Model Context Protocol server exposing the whole platform to AI agents — buy data, provision lines, manage numbers and Tele Agent from any MCP client. Already powering our ChatGPT app; the same server ships for Claude and other agents.

Status: in progress

Migrate from Twilio in three steps

Bring your Twilio voice/SMS app to esimgomobile without rewriting it: port your numbers, point your webhooks at our compatible endpoints, verify with a test call. A guided toolkit walks the whole move — numbers, messaging and Tele Agent included.

Status: live
Get building

Developer keys are live today.

Sign in, mint an esk_live_… key and start building against the live developer platform — webhooks, porting, KYC and status included.

Read the OpenAPI doc

esimgomobile in Uganda

Using developers in Uganda? You are on the local edition — key facts for Uganda (capital Kampala, dial code +256) are below. esimgomobile plans for Uganda are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalKampala
Dial code+256
CurrencyUgandan shilling (UGX)
Time zoneUTC+3
Main languagesEnglish, Swahili

Plans are live — see plans and pricing.

How it works

esimgomobile in action.

A visual walkthrough built for this page — mockups of the exact experience plus photography from the field.

Frank Cone
“The Uganda number saved me at the rental counter — they called, I answered.”
Chris D.Verified traveler · Uganda
Traveler review for Developers · Uganda: “The Uganda number saved me at the rental counter — they called, I answered.” — Chris D..
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Support
How does Developers · Uganda work?
Enter your trip details and get an instant answer — no account needed.
Support snippet — Developers · Uganda: what it does, in one honest answer.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
31
free tools
launch fact
Launch fact behind Developers · Uganda: 31 free tools — a fixed figure, not live telemetry.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Rene Terp
Pack light. Stay connected in Uganda.
Get your eSIM
Live now · no waitlist
“Pack light. Stay connected in Uganda.” — the CTA card on Developers · Uganda: plans live now, no waitlist.
  1. 1The roaming math, made visible: one price versus per-day carrier fees.
  2. 2This is the comparison most travelers never see until the bill.
Coverage
195
destinations live
Uganda5G ready
Check coverage
Coverage at a glance for Developers · Uganda: 195 destinations live, fastest local partner selected on its own.
  1. 1Live usage ring: see remaining data at a glance, no mental math.
  2. 2Top-up button sits right where you need it when data runs low.
esimgomobile.com
couples walking on the sandy beach
esimgomobile Developers
Travel guides · 8 min read
From the blog: “esimgomobile Developers” — travel guides in about eight minutes.
  1. 1The dashboard keeps every eSIM, every trip, in one place.
  2. 2Rows show data left, days left and current city at a glance.
Atlas Unlimited
Unlimited · 30 days
Uganda
Atlas Unlimited — Unlimited · 30 days, prepaid and ready on Developers · Uganda.
  1. 1Usage ring compresses the whole plan into one glanceable number.
  2. 2Percent remaining is the only metric most travelers check.
Network
5G
Uganda connected
Network widget for Developers · Uganda: 5G, full bars — zero ambiguity about the connection.
  1. 1The plan card shows exactly what you're buying — data, days, destination.
  2. 2One tap starts the two-minute QR install.
eSIM plan
Atlas 50GB50 GB · 60 days
Uganda
Install eSIM
Atlas 50GB on Developers · Uganda — 50 GB · 60 days, prepaid with the full price shown before you pay.
  1. 1Live usage ring: see remaining data at a glance, no mental math.
  2. 2Top-up button sits right where you need it when data runs low.
Speed test
820Mbps
5G · Uganda · 38 ms
Illustrative speed readout on Developers · Uganda: 820 Mbps, 38 ms — example figures, not live measurements.
  1. 1Illustrative speed readout: sample carrier, city and latency figures.
  2. 2The meter demonstrates the readout — figures are examples, not live measurements.
Launch facts
195destinations live
31free tools
$8entry monthly plan
Launch facts behind Developers · Uganda — 195 destinations live, 31 free tools, $8 entry monthly plan: numbers we publish and stand behind.
  1. 1A real support transcript: the question, then the specific answer.
  2. 2This is what 'AI support' actually looks like in practice.
Tele Agent transcript
What happens when my data runs out in Uganda?
You get a heads-up at 80%, then one-tap top-up. No roaming-bill surprises in Uganda.
Tele Agent transcript on Developers · Uganda: real question, specific answer.
  1. 1A real support transcript: the question, then the specific answer.
  2. 2This is what 'AI support' actually looks like in practice.
father and child holding hands at airport window
Ready for Uganda?
Get your eSIM
“Ready for Uganda?” — the banner on Developers · Uganda: two minutes from curious to connected.
  1. 1Mockups illustrate the product flow — captions describe what's real.
  2. 2Figures labeled as examples show sample data, never live telemetry.
vs roaming
esimgomobile eSIMone price
Carrier roamingper-day fees
10 GB · 14 days · Uganda
The honest comparison on Developers · Uganda: one prepaid eSIM price versus carrier roaming.
  1. 1The roaming math, made visible: one price versus per-day carrier fees.
  2. 2This is the comparison most travelers never see until the bill.
My eSIM
62%5 GB left
Days left16
Top up+10 GB
Data dashboard on Developers · Uganda: 62% remaining, days left, top-up one tap away.
  1. 1The Tele Agent answers in plain language — no telecom jargon.
  2. 2Every answer is specific to your trip, not a generic FAQ.
esimgomobile.com
Dashboard
Active eSIMs4
Data left50 GB
Current cityUganda
Web dashboard on Developers · Uganda: every eSIM, every trip, 50 GB left — one screen.
  1. 1Three plans side by side so the trade-off is obvious.
  2. 2Pick by trip length, not by decoding fine print.
esimgomobile.com
Checkout
Atlas 20GB — Ugandatotal
Taxescalculated
Pay securely
256-bit encrypted · Amazon Pay
Secure checkout on Developers · Uganda: Atlas 20GB, full price up front, no fine print.
  1. 1Checkout shows the full price before you pay. Nothing hidden.
  2. 2Amazon Pay handles payment securely; taxes are calculated for you.
night scene of ramen shops in tokyo
Uganda
eSIM dataLive
Local numberAvailable
5GYes
Coverage card on Developers · Uganda: data live, local number available, 5G where it exists.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Recent speeds
Rio de Janeiro581 Mbps
New York365 Mbps
Bangkok485 Mbps
Recent speeds for Developers · Uganda — Rio de Janeiro, New York, Bangkok: illustrative 5G figures, not live measurements.
  1. 1Coverage pins show where partner networks are live.
  2. 2The map answers the only question that matters: will it work there?
Uganda · 5G
Signal widget on Developers · Uganda: network generation and place, always visible.
  1. 1Signal widget: network generation and destination, always visible.
  2. 2Five bars, zero ambiguity about what you're connected to.
two women walking on beach — Developers · Uganda: Currency exchange, skipped: the phone pays at the real rate.
Developers · Uganda: Currency exchange, skipped: the phone pays at the real rate.
airplane wing and thick clouds — Developers · Uganda: Family group chat: location shared, dinner plans settled in minutes.
Developers · Uganda: Family group chat: location shared, dinner plans settled in minutes.
Ariel Raz — Developers · Uganda: The window seat office: emails sent somewhere over the ocean.
Developers · Uganda: The window seat office: emails sent somewhere over the ocean.
天玑 不器 — Developers · Uganda: Build on the same rails the Uganda checkout uses.
Developers · Uganda: Build on the same rails the Uganda checkout uses.
black and white new york city skyline — Developers · Uganda: The welcome home: eSIM deleted in one tap, no contract to cancel.
Developers · Uganda: The welcome home: eSIM deleted in one tap, no contract to cancel.
vibrant neon cityscape of tokyo at night — Developers · Uganda: Sunrise hikes start with a weather check — data on, boots on.
Developers · Uganda: Sunrise hikes start with a weather check — data on, boots on.
Jason Pittman — Developers · Uganda: Hiking the ridge: trail map offline, emergency numbers saved.
Developers · Uganda: Hiking the ridge: trail map offline, emergency numbers saved.
JACK REDGATE — Developers · Uganda: Rooftop check-in: boarding passes and hotel keys, all on the phone.
Developers · Uganda: Rooftop check-in: boarding passes and hotel keys, all on the phone.
graffiti laden rooftop overlooking new york skyline — Developers · Uganda: The sunrise ferry: tickets in the wallet app, timetable cached offline.
Developers · Uganda: The sunrise ferry: tickets in the wallet app, timetable cached offline.
people at airport — Developers · Uganda: Souvenir hunting with live currency conversion in your pocket.
Developers · Uganda: Souvenir hunting with live currency conversion in your pocket.
Bernd Feurich — Developers · Uganda: Lost in the medina, found by GPS: the blue dot never lies.
Developers · Uganda: Lost in the medina, found by GPS: the blue dot never lies.
crop woman making video call on laptop — Developers · Uganda: Island time, online time: ferries, beaches and full signal.
Developers · Uganda: Island time, online time: ferries, beaches and full signal.
child playing near istanbul control tower — Developers · Uganda: Webhooks tell you when data runs low, plans expire, top-ups land.
Developers · Uganda: Webhooks tell you when data runs low, plans expire, top-ups land.
steps leading to a beach — Developers · Uganda: The conference badge: QR ticket scanned, session schedule synced.
Developers · Uganda: The conference badge: QR ticket scanned, session schedule synced.
Oliver Schröder — Developers · Uganda: The departure board flips: gate found, lounge located, all on the eSIM.
Developers · Uganda: The departure board flips: gate found, lounge located, all on the eSIM.
delighted mother with daughter typing on laptop in airport — Developers · Uganda: The API issues eSIMs the way your app issues everything else — over HTTPS.
Developers · Uganda: The API issues eSIMs the way your app issues everything else — over HTTPS.
people working as call center agents — Developers · Uganda: The museum queue skips itself: tickets bought online, straight to the door.
Developers · Uganda: The museum queue skips itself: tickets bought online, straight to the door.
smiling women running on sea shore — Developers · Uganda: The docs ship with runnable examples, not pseudocode.
Developers · Uganda: The docs ship with runnable examples, not pseudocode.
man sitting in front of his laptop white looking at his phone — Developers · Uganda: Sandbox first: test provisioning without spending a cent.
Developers · Uganda: Sandbox first: test provisioning without spending a cent.
church on sea shore — Developers · Uganda: The group chat stays live across every border you cross.
Developers · Uganda: The group chat stays live across every border you cross.

Explainer

esimgomobile Developers: the full picture

The short version: prepaid travel eSIMs across 195 destinations, installed by QR code in two minutes, managed from a dashboard, with an AI agent on call when you need a human-style answer fast.

Everything on this page exists to answer one question well: how does esimgomobile fit into your trip? The sections below go deep so you never need a second tab.

The long version is the rest of this page — plans, mechanics, edge cases and honest trade-offs, written the way we'd explain it to a friend.

Explainer

How it works, step by step

  1. Pick your plan
    • Choose data for your trip length — 5 GB covers a long weekend, 20 GB a fortnight, 50 GB or Unlimited a month of heavy use.
    • Checkout takes about two minutes through the secure Amazon Pay checkout.
  2. Scan the QR code
    • Your eSIM arrives instantly. Open your phone camera, scan, and the plan installs itself.
    • No store visit, no plastic SIM, no waiting for the post.
  3. Land connected
    • Turn on data roaming for the eSIM line when you land — you're online before baggage claim.
    • The eSIM finds the local partner network automatically.

Explainer

Good to know

  • Download offline maps for your destination — they save data and work in dead zones.
  • Keep your home SIM active for two-factor codes from your bank; run data on the eSIM line.
  • Save your eSIM QR code somewhere safe (email it to yourself) in case you switch phones mid-trip.
  • WhatsApp, iMessage and FaceTime keep your existing number on a data eSIM — no need to tell anyone a new number.
  • If a page won't load, toggle airplane mode for ten seconds — it forces a fresh network attach.
  • Screenshot your hotel address and booking confirmations — you'll want them with no signal.

These are the details that separate a smooth trip from a stressful one — small, unglamorous, and worth more than any feature list.

Explainer

Why travelers switch

And because everything is prepaid through Amazon Pay, the commercial relationship is simple: you pay for data, you get data, it ends when it ends.

Roaming bills taught a generation to fear their phones abroad. The eSIM generation simply never learned that fear — data is prepaid, visible and finite.

The Tele Agent closes the remaining gap: a question at midnight in a foreign terminal gets an answer in seconds, not a support ticket.

The data room

Every chart that matters for Uganda.

esimgomobile Developers — data dashboard

The product's headline numbers, switchable by dataset.

195
destinations live
global footprint
4
Atlas plans
prepaid, no contracts
~2 min
typical install
QR scan to online
6
app languages
EN ES FR DE PT JA
Atlas 5GB: 5 GB over 30 days — Weekend breaks & light useAtlas 5GB 5 GBAtlas 20GB: 20 GB over 30 days — Two-week trips & daily useAtlas 20GB 20 GBAtlas 50GB: 50 GB over 60 days — Remote work & hotspottingAtlas 50GB 50 GBAtlas Unlimited: Unlimited over 30 days — Heavy use, zero meteringAtlas Unlimited Unlimited
Atlas 5GB: 30-day validityAtlas 5GB 30 daysAtlas 20GB: 30-day validityAtlas 20GB 30 daysAtlas 50GB: 60-day validityAtlas 50GB 60 daysAtlas Unlimited: 30-day validityAtlas Unlimited 30 days
Illustrative — D1: 100% of maxIllustrative — D10: 70% of maxIllustrative — D20: 42% of maxIllustrative — D30: 12% of maxDay 1Day 10Day 20Day 30IllustrativeIllustrative 20 GB burn-down at moderate use.

Hover any bar or point for its exact value. Tabs switch datasets — everything on this panel is computed from live product data unless labeled illustrative.

esimgomobile Developers — data dashboard. Plan allowances, validity windows and a typical usage curve for esimgomobile Developers — hover for exact values.
esimgomobile Developers: capability profileWhat the tool is good at — illustrative profileCapability profileFive strengths, ranked by what users feel first.Mobile friendlyworks on the phone in your handInstant resultsno waiting, no signupShares wellsend the answer to travel companionsAlways currentreflects live plans and coveragePrivate by designyour inputs stay in your browserIllustrative profile based on tool design — not measured telemetry.
Capability profile. Capabilities measured by traveler value, not feature count.
Pro tipsFour habits of the always-connectedPro tipsSmall habits, big difference.1Keep home SIM for 2FABank codes still arrive while data runs on the eSIM.2Screenshot bookingsHotel address & confirmations, available with no signal.3Check unlock statusCarrier-locked phones can't add an eSIM — verify first.4Download offline mapsThey save data and work in dead zones.
Pro tips. Four habits for smooth trips — pro tips for Developers · Uganda.
Get connected in three stepsFrom purchase to online in about two minutesGet connected in three stepsNo store visit, no plastic SIM, no waiting for the post.1Land connectedSwitch the line on when you arrive — online before baggage claim.2Scan the QR codeThe eSIM installs straight onto your phone. No store, no plastic SIM.3Pick your planChoose data for your trip — checkout takes about two minutes.
Three-step setup. Buy, scan, land: the whole sequence fits in a coffee queue.
Who it's forFour travelers, one toolWho it's forBuilt for real trip shapes, not personas.1The last-minute flyer
Answer in minutes, eSIM installed before boarding.
esimgomobile network data2The remote worker
Size data for video calls and hotspotting with confidence.
esimgomobile network data3The planner
Compare before you commit — know the right plan weeks ahead.
esimgomobile network data4The family organizer
One tool, every traveler's needs covered.
esimgomobile network data
Use cases. Six traveler shapes, one tool — Developers · Uganda's use cases.
Plan comparison matrixEvery plan for Uganda — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to Uganda.PLANDATAVALIDITYAtlas 5GBWeekend breaks & light use5 GB30 daysAtlas 20GBTwo-week trips & daily use20 GB30 daysAtlas 50GBRemote work & hotspotting50 GB60 daysAtlas UnlimitedHeavy use, zero meteringUnlimited30 days
Plan comparison matrix. Weekend sips, fortnight data, work-month gulps, or unlimited — pick by trip shape.
Every plan includesNo tiers of basic dignity — these ship with all plansEvery plan includesThe baseline is generous on purpose.5G where availableFastest local partner network, selected automatically.6 languagesThe app speaks your language, wherever you're from.Hotspot includedShare with your laptop or tablet at no extra cost.24/7 supportReal humans plus the Tele Agent, around the clock.Keep your WhatsAppYour existing number keeps working on the data line.One-tap top-upMore data in seconds — no new QR code.
Included with every plan. Six things ship with every plan — the Developers · Uganda baseline, generous on purpose.
What your gigabytes meanTypical hourly usage per activityWhat your gigabytes meanTranslate plan sizes into real travel behavior.Maps & navigation≈ 5 MB / hourMessaging & email≈ 20 MB / hourSocial browsing≈ 150 MB / hourVideo calls≈ 600 MB / hourHD streaming≈ 1.5 GB / hourTypical usage rates — actual consumption varies by app and quality settings.
Data usage guide. Maps sip, streaming gulps: size the plan to your heaviest habit.
Network at a glanceCoverage facts for UgandaNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in Ugandaesimgomobile network data6app languagesesimgomobile network data2 mintypical install timeesimgomobile network dataPlus: local numbers where available, hotspot included, 24/7 support.Prepaid only — when the plan ends, it simply stops. No contracts.
Coverage facts. Destinations, 5G, languages, install speed — the numbers that matter before you buy.
How esimgomobile Developers worksFour steps from question to answerHow this tool worksBuilt to answer one question well.1Get the answerClear result with next steps — save it or act on it.2Apply itJump straight to the plan, setting or page it points to.3Open the toolNo account needed — it loads instantly in your browser.4Enter your detailsTrip, data needs, destination. The tool does the math.
Tool walkthrough. Developers · Uganda, demystified: open, enter, answer, act.
Questions, answeredThe six things everyone asks firstQuestions, answeredShort answers, no sales pitch.Does hotspot work?
Yes — share your connection with laptop or tablet.
How fast is setup?
About two minutes: plan, QR scan, done.
What if data runs out?
80% alert, then one-tap top-up. No bill shock.
Which phones work?
Any carrier-unlocked, eSIM-capable iPhone or Android.
Is it a contract?
No — prepaid. Service simply stops instead of charging extra.
Do I keep my number?
Yes — WhatsApp & iMessage keep working on your existing number.
FAQ at a glance. Short answers, no sales pitch — the questions first, always.

Ready when Uganda is

Join thousands of travelers who land connected. Your eSIM installs in two minutes.

See plans and pricing Talk to the Tele Agent