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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 Fiji

Using developers in Fiji? You are on the local edition — key facts for Fiji (capital Suva, dial code +679) are below. esimgomobile plans for Fiji are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalSuva
Dial code+679
CurrencyFijian dollar (FJD)
Time zoneUTC+12
Main languagesEnglish, Fijian, Hindi

Plans are live — see plans and pricing.

See it live

The product, up close.

Twenty product screens and twenty field photos — this is what traveling connected looks like.

Tele Agent transcript
Do I need a local number in Fiji?
A local Fiji number is available on this plan — I can attach it before you land.
Tele Agent transcript on Developers · Fiji: real question, specific answer.
  1. 1Coverage pins show where partner networks are live.
  2. 2The map answers the only question that matters: will it work there?
esimgomobile.com
API quickstart
curl https://api.esimgomobile.com/v1/esims \
  -H "Authorization: Bearer $KEY" \
  -d '{"country":"FI"}'
200 OK · 42 ms
REST API behind Developers · Fiji: issue eSIMs programmatically — 200 OK in milliseconds.
  1. 1Checkout shows the full price before you pay. Nothing hidden.
  2. 2Amazon Pay handles payment securely; taxes are calculated for you.
Install
1 Scan2 Add3 Go
The Developers · Fiji install: QR in three steps — scan, add, go, about two minutes.
  1. 1The plan card shows exactly what you're buying — data, days, destination.
  2. 2One tap starts the two-minute QR install.
esimgomobile.com
woman in black long sleeve shirt using headphones
esimgomobile Developers
Travel guides · 8 min read
From the blog: “esimgomobile Developers” — travel guides in about eight minutes.
  1. 1Three plans side by side so the trade-off is obvious.
  2. 2Pick by trip length, not by decoding fine print.
Zetong Li
Fiji is calling.
Get your eSIM
Live now · no waitlist
“Fiji is calling.” — the CTA card on Developers · Fiji: 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.
close up of man working on laptop
“Switched plans mid-trip in Fiji. Took about a minute.”
Sofia L.Verified traveler · Fiji
Traveler review for Developers · Fiji: “Switched plans mid-trip in Fiji. Took about a minute.” — Sofia L..
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Atlas Unlimited
Unlimited · 30 days
Fiji
Atlas Unlimited — Unlimited · 30 days, prepaid and ready on Developers · Fiji.
  1. 1Signal widget: network generation and destination, always visible.
  2. 2Five bars, zero ambiguity about what you're connected to.
Tele Agent
“Setting up your Fiji line…”
AI voice agent on Developers · Fiji — answers spoken aloud, never a support ticket.
  1. 1Illustrative speed readout: sample carrier, city and latency figures.
  2. 2The meter demonstrates the readout — figures are examples, not live measurements.
vs roaming
esimgomobile eSIMone price
Carrier roamingper-day fees
10 GB · 14 days · Fiji
The honest comparison on Developers · Fiji: 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.
Support
How does Developers · Fiji work?
Enter your trip details and get an instant answer — no account needed.
Support snippet — Developers · Fiji: 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.
Tele Agent
Can I keep my WhatsApp number?
Yes — your eSIM is data-first, so WhatsApp keeps working on your existing number in Fiji.
Tele Agent chat on Developers · Fiji — real questions, specific answers, zero telecom jargon.
  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.
Recent speeds
Cairo146 Mbps
Barcelona310 Mbps
Rome595 Mbps
Recent speeds for Developers · Fiji — Cairo, Barcelona, Rome: 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?
My eSIM
75%5 GB left
Days left21
Top up+10 GB
Data dashboard on Developers · Fiji: 75% remaining, days left, top-up one tap away.
  1. 1The plan card shows exactly what you're buying — data, days, destination.
  2. 2One tap starts the two-minute QR install.
$8
entry monthly plan
launch fact
Launch fact behind Developers · Fiji: $8 entry monthly plan — a fixed figure, not live telemetry.
  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.
67%
data left
Usage ring on Developers · Fiji — 67% of data left: the number travelers check most.
  1. 1Signal widget: network generation and destination, always visible.
  2. 2Five bars, zero ambiguity about what you're connected to.
Launch facts
195destinations live
31free tools
$8entry monthly plan
Launch facts behind Developers · Fiji — 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.
Speed test
547Mbps
5G · Fiji · 42 ms
Illustrative speed readout on Developers · Fiji: 547 Mbps, 42 ms — example figures, not live measurements.
  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.
woman hiking on hill
Fiji
eSIM dataLive
Local numberAvailable
5GYes
Coverage card on Developers · Fiji: data live, local number available, 5G where it exists.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Network
5G
Fiji connected
Network widget for Developers · Fiji: 5G, full bars — zero ambiguity about the connection.
  1. 1Illustrative speed readout: sample carrier, city and latency figures.
  2. 2The meter demonstrates the readout — figures are examples, not live measurements.
Language
PortuguêsEnglishDeutsch
Language picker on Developers · Fiji — Português, English, Deutsch: the app speaks six languages.
  1. 1The plan chip: name, allowance and destination in one line.
  2. 2Everything you need to confirm you're on the right plan.
iconic blue dome church overlooking santorini coastline — Developers · Fiji: API keys rotate in one click — the dashboard makes it boring.
Developers · Fiji: API keys rotate in one click — the dashboard makes it boring.
aerial view of fira santorini s white structures — Developers · Fiji: Market mornings: look up the dish, translate the menu, pay by phone.
Developers · Fiji: Market mornings: look up the dish, translate the menu, pay by phone.
architects looking at plans in office — Developers · Fiji: Rate limits are generous and documented — no surprise 429s.
Developers · Fiji: Rate limits are generous and documented — no surprise 429s.
group of friends walking along beach — Developers · Fiji: Rain or shine, the connection holds — weather doesn't throttle data.
Developers · Fiji: Rain or shine, the connection holds — weather doesn't throttle data.
tourist hiking in grassy mountains — Developers · Fiji: The window seat office: emails sent somewhere over the ocean.
Developers · Fiji: The window seat office: emails sent somewhere over the ocean.
Modern Airport Terminal — Developers · Fiji: Café office: hotspot running, video call stable, no hotel Wi-Fi roulette.
Developers · Fiji: Café office: hotspot running, video call stable, no hotel Wi-Fi roulette.
miniature eiffel tower reflected on wet surface — Developers · Fiji: The commute, handled: podcasts downloaded, messages sent, no dead zones.
Developers · Fiji: The commute, handled: podcasts downloaded, messages sent, no dead zones.
man in blue shirt having a virtual meeting — Developers · Fiji: The last night: photo album backed up, memories safe before wheels-up.
Developers · Fiji: The last night: photo album backed up, memories safe before wheels-up.
modern workspace with smartphone and greenery — Developers · Fiji: The connected trip: maps, messages and translation, all on one eSIM.
Developers · Fiji: The connected trip: maps, messages and translation, all on one eSIM.
smiling women on beach in fog — Developers · Fiji: Harbor views with full bars: coverage where travelers actually go.
Developers · Fiji: Harbor views with full bars: coverage where travelers actually go.
black toyota noah driving down the street in tokyo — Developers · Fiji: The business trip: client deck synced, video call joined from the taxi.
Developers · Fiji: The business trip: client deck synced, video call joined from the taxi.
man sitting in front of his laptop white looking at his phone — Developers · Fiji: Build on the same rails the Fiji checkout uses.
Developers · Fiji: Build on the same rails the Fiji checkout uses.
mother and son waiting at the airport — Developers · Fiji: Webhooks tell you when data runs low, plans expire, top-ups land.
Developers · Fiji: Webhooks tell you when data runs low, plans expire, top-ups land.
oia village on santorini island — Developers · Fiji: Hiking the ridge: trail map offline, emergency numbers saved.
Developers · Fiji: Hiking the ridge: trail map offline, emergency numbers saved.
wing of aircraft flying over clouds at sundown — Developers · Fiji: Travelers stay online from the moment they land — no SIM queues, no roaming shock.
Developers · Fiji: Travelers stay online from the moment they land — no SIM queues, no roaming shock.
view of brown and grey high rise building — Developers · Fiji: The rental desk handshake: confirmation email open, license photo ready.
Developers · Fiji: The rental desk handshake: confirmation email open, license photo ready.
people walking on the sand — Developers · Fiji: SDKs, a CLI, and an MCP server — the developer surface, complete.
Developers · Fiji: SDKs, a CLI, and an MCP server — the developer surface, complete.
friends jumping together on a beach — Developers · Fiji: The red-eye recovery: hotel early-check-in arranged mid-flight.
Developers · Fiji: The red-eye recovery: hotel early-check-in arranged mid-flight.
eiffel tower — Developers · Fiji: Migrate from Twilio in three steps — the toolkit does the heavy lifting.
Developers · Fiji: Migrate from Twilio in three steps — the toolkit does the heavy lifting.
Bhargava Marripati — Developers · Fiji: City lights after dark — the eSIM doesn't care what time it is.
Developers · Fiji: City lights after dark — the eSIM doesn't care what time it is.

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.

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.

Explainer

How it works, step by step

  1. Buy before you fly
    • Order from home, the hotel, or the departure lounge — delivery is instant and digital.
    • No shipping, no pickup counters, no airport SIM queues.
  2. Add the eSIM
    • One QR scan adds the plan to your phone. iPhone and Android both walk you through it in under a minute.
    • You can install now and activate later — the plan starts when you choose.
  3. Stay online abroad
    • Data, maps, translation and messaging work the moment you land.
    • Running low? Top up in one tap from your dashboard — no new QR code needed.

Explainer

Good to know

  • Screenshot your hotel address and booking confirmations — you'll want them with no signal.
  • WhatsApp, iMessage and FaceTime keep your existing number on a data eSIM — no need to tell anyone a new number.
  • Keep your home SIM active for two-factor codes from your bank; run data on the eSIM line.
  • Charge your phone before long travel days; weak signal areas drain batteries faster.
  • Download offline maps for your destination — they save data and work in dead zones.
  • Check that your phone is carrier-unlocked before you buy any eSIM — locked phones can't add one.

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

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.

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 data room

Fiji, visualized.

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.
Questions, answeredThe six things everyone asks firstQuestions, answeredShort answers, no sales pitch.How fast is setup?
About two minutes: plan, QR scan, done.
Do I keep my number?
Yes — WhatsApp & iMessage keep working on your existing number.
What if data runs out?
80% alert, then one-tap top-up. No bill shock.
Does hotspot work?
Yes — share your connection with laptop or tablet.
Is it a contract?
No — prepaid. Service simply stops instead of charging extra.
Which phones work?
Any carrier-unlocked, eSIM-capable iPhone or Android.
FAQ at a glance. Six questions every traveler asks — the Developers · Fiji answers, one screen.
How esimgomobile Developers worksFour steps from question to answerHow this tool worksBuilt to answer one question well.1Open the toolNo account needed — it loads instantly in your browser.2Enter your detailsTrip, data needs, destination. The tool does the math.3Apply itJump straight to the plan, setting or page it points to.4Get the answerClear result with next steps — save it or act on it.
Tool walkthrough. Every tool on esimgomobile follows the same honest pattern: input, math, answer.
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. Install days before departure or minutes before boarding — your call.
esimgomobile Developers: capability profileWhat the tool is good at — illustrative profileCapability profileFive strengths, ranked by what users feel first.Shares wellsend the answer to travel companionsMobile friendlyworks on the phone in your handAlways currentreflects live plans and coveragePrivate by designyour inputs stay in your browserInstant resultsno waiting, no signupIllustrative profile based on tool design — not measured telemetry.
Capability profile. Ranked by what travelers notice first, not by marketing priority.
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.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.
Included with every plan. 5G, hotspot, WhatsApp continuity, top-up, support, six languages — all tiers.
Pro tipsFour habits of the always-connectedPro tipsSmall habits, big difference.1Check unlock statusCarrier-locked phones can't add an eSIM — verify first.2Keep home SIM for 2FABank codes still arrive while data runs on the eSIM.3Install before you flyAirport Wi-Fi is the worst place to set up connectivity.4Screenshot bookingsHotel address & confirmations, available with no signal.
Pro tips. Four habits for smooth trips — pro tips for Developers · Fiji.
Plan comparison matrixEvery plan for Fiji — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to Fiji.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.
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. A 20 GB plan covers roughly two weeks of normal travel use.
Who it's forFour travelers, one toolWho it's forBuilt for real trip shapes, not personas.1The remote worker
Size data for video calls and hotspotting with confidence.
esimgomobile network data2The planner
Compare before you commit — know the right plan weeks ahead.
esimgomobile network data3The family organizer
One tool, every traveler's needs covered.
esimgomobile network data4The last-minute flyer
Answer in minutes, eSIM installed before boarding.
esimgomobile network data
Use cases. If you recognize yourself here, the tool will pay for its click.
Network at a glanceCoverage facts for FijiNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in Fijiesimgomobile 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.

Your Fiji 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