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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 New Zealand

Using developers in New Zealand? You are on the local edition — key facts for New Zealand (capital Wellington, dial code +64) are below. esimgomobile plans for New Zealand are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalWellington
Dial code+64
CurrencyNew Zealand dollar (NZD)
Time zoneUTC+12
Main languagesEnglish, Māori

Plans are live — see plans and pricing.

Product tour

esimgomobile in action.

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

Launch facts
195destinations live
31free tools
$8entry monthly plan
Launch facts behind Developers · New Zealand — 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.
esimgomobile.com
Dashboard
Active eSIMs1
Data left50 GB
Current cityNew Zealand
Web dashboard on Developers · New Zealand: every eSIM, every trip, 50 GB left — one screen.
  1. 1The dashboard keeps every eSIM, every trip, in one place.
  2. 2Rows show data left, days left and current city at a glance.
a group of people chatting in a video call in a laptop
“My hotspot ran the whole Airbnb in New Zealand for two weeks.”
Jonas K.Verified traveler · New Zealand
Traveler review for Developers · New Zealand: “My hotspot ran the whole Airbnb in New Zealand for two weeks.” — Jonas K..
  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
New Zealand5G ready
Check coverage
Coverage at a glance for Developers · New Zealand: 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.
85%
data left
Usage ring on Developers · New Zealand — 85% of data left: the number travelers check most.
  1. 1Usage ring compresses the whole plan into one glanceable number.
  2. 2Percent remaining is the only metric most travelers check.
eSIM installedYour New Zealand plan is ready.
Push · just now
Push notification on Developers · New Zealand: eSIM installed, plan ready to activate.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Tele Agent transcript
What happens when my data runs out in New Zealand?
You get a heads-up at 80%, then one-tap top-up. No roaming-bill surprises in New Zealand.
Tele Agent transcript on Developers · New Zealand: 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.
Why travelers pick it
  • 24/7 support
  • Keep WhatsApp number
  • Instant QR install
Why travelers pick Developers · New Zealand: 24/7 support, Keep WhatsApp number, Instant QR install.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Atlas 5GB
5 GB · 30 days
New Zealand
Atlas 5GB — 5 GB · 30 days, prepaid and ready on Developers · New Zealand.
  1. 1The plan chip: name, allowance and destination in one line.
  2. 2Everything you need to confirm you're on the right plan.
My eSIM
74%5 GB left
Days left19
Top up+10 GB
Data dashboard on Developers · New Zealand: 74% 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.
Recent speeds
Singapore718 Mbps
Marrakech380 Mbps
Barcelona645 Mbps
Recent speeds for Developers · New Zealand — Singapore, Marrakech, Barcelona: 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?
Speed test
232Mbps
5G · New Zealand · 85 ms
Illustrative speed readout on Developers · New Zealand: 232 Mbps, 85 ms — example figures, not live measurements.
  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
capturing sculpture with smartphone in kolkata
esimgomobile Developers…rst, down to the SIM
Travel guides · 8 min read
From the blog: “esimgomobile Developers…rst, down to the SIM” — 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.
eSIM plan
Atlas UnlimitedUnlimited · 30 days
New Zealand
Install eSIM
Atlas Unlimited on Developers · New Zealand — Unlimited · 30 days, prepaid with the full price shown before you pay.
  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
Plans for New Zealand
Atlas 5GB5 GB · 30 days
Atlas 20GB20 GB · 30 days
Atlas 50GB50 GB · 60 days
Compare plans
Plan picker on Developers · New Zealand: 5GB, 20GB, 50GB and Unlimited — pick by trip, not fine print.
  1. 1The dashboard keeps every eSIM, every trip, in one place.
  2. 2Rows show data left, days left and current city at a glance.
New Zealand · 5G
Signal widget on Developers · New Zealand: network generation and place, always visible.
  1. 1The plan chip: name, allowance and destination in one line.
  2. 2Everything you need to confirm you're on the right plan.
vs roaming
esimgomobile eSIMone price
Carrier roamingper-day fees
10 GB · 14 days · New Zealand
The honest comparison on Developers · New Zealand: one prepaid eSIM price versus carrier roaming.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
New Zealand · coverage
5 carriers · automatic selection
Coverage map on Developers · New Zealand: partner networks pinned, selection automatic.
  1. 1Mockups illustrate the product flow — captions describe what's real.
  2. 2Figures labeled as examples show sample data, never live telemetry.
Network
5G
New Zealand connected
Network widget for Developers · New Zealand: 5G, full bars — zero ambiguity about the connection.
  1. 1The Tele Agent answers in plain language — no telecom jargon.
  2. 2Every answer is specific to your trip, not a generic FAQ.
195
destinations live
launch fact
Launch fact behind Developers · New Zealand: 195 destinations live — a fixed figure, not live telemetry.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
close up shot of headphones hanging on a laptop — Developers · New Zealand: The conference badge: QR ticket scanned, session schedule synced.
Developers · New Zealand: The conference badge: QR ticket scanned, session schedule synced.
sea bay at rock waterfront city — Developers · New Zealand: Street level: navigation, rideshares and reviews, all instant.
Developers · New Zealand: Street level: navigation, rideshares and reviews, all instant.
vibrant night cityscape of shinjuku tokyo — Developers · New Zealand: Rate limits are generous and documented — no surprise 429s.
Developers · New Zealand: Rate limits are generous and documented — no surprise 429s.
three friends walking on a sandy beach at sunset — Developers · New Zealand: The connected trip: maps, messages and translation, all on one eSIM.
Developers · New Zealand: The connected trip: maps, messages and translation, all on one eSIM.
four people wearing headphones — Developers · New Zealand: The group chat stays live across every border you cross.
Developers · New Zealand: The group chat stays live across every border you cross.
corner facade of a building in a city — Developers · New Zealand: The API issues eSIMs the way your app issues everything else — over HTTPS.
Developers · New Zealand: The API issues eSIMs the way your app issues everything else — over HTTPS.
laughing man and woman working in a call center — Developers · New Zealand: Lost in the medina, found by GPS: the blue dot never lies.
Developers · New Zealand: Lost in the medina, found by GPS: the blue dot never lies.
close up photo of headset — Developers · New Zealand: Rain or shine, the connection holds — weather doesn't throttle data.
Developers · New Zealand: Rain or shine, the connection holds — weather doesn't throttle data.
hiking adventure in rudra nath india — Developers · New Zealand: The night bus: entertainment downloaded, messages queued, rest easy.
Developers · New Zealand: The night bus: entertainment downloaded, messages queued, rest easy.
woman at table with documents during meeting with colleagues — Developers · New Zealand: The red-eye recovery: hotel early-check-in arranged mid-flight.
Developers · New Zealand: The red-eye recovery: hotel early-check-in arranged mid-flight.
vibrant nightlife in tokyo s busy streets — Developers · New Zealand: Trailheads and lookouts: offline maps downloaded, just in case.
Developers · New Zealand: Trailheads and lookouts: offline maps downloaded, just in case.
empire state building nyc — Developers · New Zealand: The commute, handled: podcasts downloaded, messages sent, no dead zones.
Developers · New Zealand: The commute, handled: podcasts downloaded, messages sent, no dead zones.
Gaspar Zaldo — Developers · New Zealand: Platform to platform: tickets, timetables and taxis in one hand.
Developers · New Zealand: Platform to platform: tickets, timetables and taxis in one hand.
David Rado — Developers · New Zealand: Harbor views with full bars: coverage where travelers actually go.
Developers · New Zealand: Harbor views with full bars: coverage where travelers actually go.
Shreyaan Vashishtha — Developers · New Zealand: Sandbox first: test provisioning without spending a cent.
Developers · New Zealand: Sandbox first: test provisioning without spending a cent.
five people having conversation — Developers · New Zealand: Plazas and promenades: video calls home with the view behind you.
Developers · New Zealand: Plazas and promenades: video calls home with the view behind you.
a man having a video call on his laptop — Developers · New Zealand: SDKs, a CLI, and an MCP server — the developer surface, complete.
Developers · New Zealand: SDKs, a CLI, and an MCP server — the developer surface, complete.
aerial view of midtown manhattan skyscrapers — Developers · New Zealand: Market mornings: look up the dish, translate the menu, pay by phone.
Developers · New Zealand: Market mornings: look up the dish, translate the menu, pay by phone.
Young woman backpacker taking a selfie on a white background, dressed in outdoor gear. — Developers · New Zealand: The welcome home: eSIM deleted in one tap, no contract to cancel.
Developers · New Zealand: The welcome home: eSIM deleted in one tap, no contract to cancel.
people on a video call — Developers · New Zealand: Downtown, connected: the eSIM finds the fastest local network on its own.
Developers · New Zealand: Downtown, connected: the eSIM finds the fastest local network on its own.

Explainer

esimgomobile Developers…rst, down to the SIM: the full picture

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.

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 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.

Explainer

How it works, step by step

  1. Choose data that fits the trip
    • Short city break? 5 GB. Two weeks with maps and video calls? 20 GB. Working remotely or hotspotting? 50 GB or Unlimited.
    • Every plan shows exactly what you get — no asterisks.
  2. Install in two minutes
    • Buy, scan the QR code, done. The whole thing happens on your phone, wherever you are.
    • Install days before you fly or minutes before boarding — your call.
  3. Switch on and go
    • Enable the eSIM line in settings when you arrive. It connects to the fastest local partner network on its own.
    • Your home number keeps working for calls and texts on your physical SIM if you keep it active.

Explainer

Good to know

  • Set a data alert at 80% so a top-up never surprises you mid-trip.
  • Charge your phone before long travel days; weak signal areas drain batteries faster.
  • If a page won't load, toggle airplane mode for ten seconds — it forces a fresh network attach.
  • WhatsApp, iMessage and FaceTime keep your existing number on a data eSIM — no need to tell anyone a new number.
  • Turn off auto-play on social apps before you fly; it quietly eats roaming data.
  • Download offline maps for your destination — they save data and work in dead zones.

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.

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

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 data room

The numbers behind New Zealand.

esimgomobile Developers…rst, down to the SIM — 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…rst, down to the SIM — data dashboard. Plan allowances, validity windows and a typical usage curve for esimgomobile Developers…rst, down to the SIM — hover for exact values.
Pro tipsFour habits of the always-connectedPro tipsSmall habits, big difference.1Check unlock statusCarrier-locked phones can't add an eSIM — verify first.2Set an 80% alertA top-up should never surprise you mid-trip.3Install before you flyAirport Wi-Fi is the worst place to set up connectivity.4Keep home SIM for 2FABank codes still arrive while data runs on the eSIM.
Pro tips. The small things that separate smooth trips from stressful ones.
Plan comparison matrixEvery plan for New Zealand — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to New Zealand.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. Developers · New Zealand: four plans, four trip shapes — the matrix carries no fine print.
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.1Pick your planChoose data for your trip — checkout takes about two minutes.2Land connectedSwitch the line on when you arrive — online before baggage claim.3Scan the QR codeThe eSIM installs straight onto your phone. No store, no plastic SIM.
Three-step setup. Buy, scan, land: the whole sequence fits in a coffee queue.
esimgomobile Developers…rst, down to the SIM: capability profileWhat the tool is good at — illustrative profileCapability profileFive strengths, ranked by what users feel first.Always currentreflects live plans and coverageInstant resultsno waiting, no signupShares wellsend the answer to travel companionsPrivate by designyour inputs stay in your browserMobile friendlyworks on the phone in your handIllustrative profile based on tool design — not measured telemetry.
Capability profile. What Developers · New Zealand does best — the capability profile, honestly ranked.
Every plan includesNo tiers of basic dignity — these ship with all plansEvery plan includesThe baseline is generous on purpose.Keep your WhatsAppYour existing number keeps working on the data line.One-tap top-upMore data in seconds — no new QR code.24/7 supportReal humans plus the Tele Agent, around the clock.Hotspot includedShare with your laptop or tablet at no extra cost.5G where availableFastest local partner network, selected automatically.6 languagesThe app speaks your language, wherever you're from.
Included with every plan. 5G, hotspot, WhatsApp continuity, top-up, support, six languages — all tiers.
Who it's forFour travelers, one toolWho it's forBuilt for real trip shapes, not personas.1The family organizer
One tool, every traveler's needs covered.
esimgomobile network data2The last-minute flyer
Answer in minutes, eSIM installed before boarding.
esimgomobile network data3The remote worker
Size data for video calls and hotspotting with confidence.
esimgomobile network data4The planner
Compare before you commit — know the right plan weeks ahead.
esimgomobile network data
Use cases. Six traveler shapes, one tool — Developers · New Zealand's use cases.
Network at a glanceCoverage facts for New ZealandNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in New Zealandesimgomobile 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. New Zealand connects to the fastest available local partner network automatically.
How esimgomobile Developers…rst, down to the SIM worksFour steps from question to answerHow this tool worksBuilt to answer one question well.1Apply itJump straight to the plan, setting or page it points to.2Get the answerClear result with next steps — save it or act on it.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 · New Zealand, demystified: open, enter, answer, act.
Questions, answeredThe six things everyone asks firstQuestions, answeredShort answers, no sales pitch.Which phones work?
Any carrier-unlocked, eSIM-capable iPhone or Android.
What if data runs out?
80% alert, then one-tap top-up. No bill shock.
Do I keep my number?
Yes — WhatsApp & iMessage keep working on your existing number.
Is it a contract?
No — prepaid. Service simply stops instead of charging extra.
Does hotspot work?
Yes — share your connection with laptop or tablet.
How fast is setup?
About two minutes: plan, QR scan, done.
FAQ at a glance. Six questions every traveler asks — the Developers · New Zealand answers, one screen.
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.

Your New Zealand plan is two minutes away

Pick a plan, check out securely, scan the QR code — you're online before you land.

See plans and pricing Talk to the Tele Agent