>
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 Lithuania

Using developers in Lithuania? You are on the local edition — key facts for Lithuania (capital Vilnius, dial code +370) are below. esimgomobile plans for Lithuania are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalVilnius
Dial code+370
CurrencyEuro (EUR)
Time zoneUTC+2
Main languagesLithuanian

Plans are live — see plans and pricing.

How it works

esimgomobile in action.

Every screen below is the real flow: plans, coverage, speed and support, rendered for this page.

27%
data left
Usage ring on Developers · Lithuania — 27% of data left: the number travelers check most.
  1. 1The plan chip: name, allowance and destination in one line.
  2. 2Everything you need to confirm you're on the right plan.
Recent speeds
Rio de Janeiro752 Mbps
Barcelona621 Mbps
Sydney461 Mbps
Recent speeds for Developers · Lithuania — Rio de Janeiro, Barcelona, Sydney: illustrative 5G figures, not live measurements.
  1. 1Mockups illustrate the product flow — captions describe what's real.
  2. 2Figures labeled as examples show sample data, never live telemetry.
Tele Agent
Will my phone work in Lithuania?
If it's carrier-unlocked and eSIM-capable, yes. I checked Lithuania bands — you're covered.
Tele Agent chat on Developers · Lithuania — 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.
man and woman wearing a headset with a microphone in an office
Lithuania
eSIM dataLive
Local numberAvailable
5GYes
Coverage card on Developers · Lithuania: 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.
esimgomobile.com
API quickstart
curl https://api.esimgomobile.com/v1/esims \
  -H "Authorization: Bearer $KEY" \
  -d '{"country":"LI"}'
200 OK · 169 ms
REST API behind Developers · Lithuania: issue eSIMs programmatically — 200 OK in milliseconds.
  1. 1Three plans side by side so the trade-off is obvious.
  2. 2Pick by trip length, not by decoding fine print.
Coverage
195
destinations live
Lithuania5G ready
Check coverage
Coverage at a glance for Developers · Lithuania: 195 destinations live, fastest local partner selected on its own.
  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 · Lithuania
The honest comparison on Developers · Lithuania: 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.
My eSIM
70%50 GB left
Days left13
Top up+10 GB
Data dashboard on Developers · Lithuania: 70% remaining, days left, top-up one tap away.
  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 · Lithuania — 195 destinations live, 31 free tools, $8 entry monthly plan: numbers we publish and stand behind.
  1. 1Coverage pins show where partner networks are live.
  2. 2The map answers the only question that matters: will it work there?
Lithuania · coverage
5 carriers · automatic selection
Coverage map on Developers · Lithuania: partner networks pinned, selection automatic.
  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
Will my phone work in Lithuania?
If it's carrier-unlocked and eSIM-capable, yes. I checked Lithuania bands — you're covered.
Tele Agent transcript on Developers · Lithuania: 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.
Skyline of a Modern City with Illuminated Buildings at Night
Get connected
1 Pick a plan2 Scan QR3 Land online
Three steps on Developers · Lithuania: pick a plan, scan the QR, land online.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Install
1 Scan2 Add3 Go
The Developers · Lithuania install: QR in three steps — scan, add, go, about two minutes.
  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.
Lithuania · 5G
Signal widget on Developers · Lithuania: 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.
Why travelers pick it
  • One-tap top-up
  • Keep WhatsApp number
  • 5G where available
Why travelers pick Developers · Lithuania: One-tap top-up, Keep WhatsApp number, 5G where available.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
esimgomobile.com
Dashboard
Active eSIMs2
Data left20 GB
Current cityLithuania
Web dashboard on Developers · Lithuania: every eSIM, every trip, 20 GB left — one screen.
  1. 1Checkout shows the full price before you pay. Nothing hidden.
  2. 2Amazon Pay handles payment securely; taxes are calculated for you.
Speed test
614Mbps
5G · Lithuania · 67 ms
Illustrative speed readout on Developers · Lithuania: 614 Mbps, 67 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.
Tele Agent
“Setting up your Lithuania line…”
AI voice agent on Developers · Lithuania — answers spoken aloud, never a support ticket.
  1. 1The Tele Agent answers in plain language — no telecom jargon.
  2. 2Every answer is specific to your trip, not a generic FAQ.
Atlas 20GB
20 GB · 30 days
Lithuania
Atlas 20GB — 20 GB · 30 days, prepaid and ready on Developers · Lithuania.
  1. 1Usage ring compresses the whole plan into one glanceable number.
  2. 2Percent remaining is the only metric most travelers check.
eSIM installedYour Lithuania plan is ready.
Push · just now
Push notification on Developers · Lithuania: eSIM installed, plan ready to activate.
  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.
cheerful girlfriends walking together along sandy beach — Developers · Lithuania: Street-food stalls and mobile pay: dinner ordered without a word of the language.
Developers · Lithuania: Street-food stalls and mobile pay: dinner ordered without a word of the language.
captivating view from airplane window at sunset — Developers · Lithuania: Duty-free browsing: price-checked against home before buying.
Developers · Lithuania: Duty-free browsing: price-checked against home before buying.
vibrant tokyo nightlife with neon signs — Developers · Lithuania: The commute, handled: podcasts downloaded, messages sent, no dead zones.
Developers · Lithuania: The commute, handled: podcasts downloaded, messages sent, no dead zones.
busy airport terminal with travelers and luggage — Developers · Lithuania: Real journeys, real connectivity — this is what the product is for.
Developers · Lithuania: Real journeys, real connectivity — this is what the product is for.
laughing man and woman working in a call center — Developers · Lithuania: Downtown, connected: the eSIM finds the fastest local network on its own.
Developers · Lithuania: Downtown, connected: the eSIM finds the fastest local network on its own.
black corded headphones on blue and yellow surface — Developers · Lithuania: Rate limits are generous and documented — no surprise 429s.
Developers · Lithuania: Rate limits are generous and documented — no surprise 429s.
lively nightlife in shibuya tokyo street — Developers · Lithuania: Every endpoint returns the same shape — learn one, know them all.
Developers · Lithuania: Every endpoint returns the same shape — learn one, know them all.
man carrying orange backpack — Developers · Lithuania: Lost in the medina, found by GPS: the blue dot never lies.
Developers · Lithuania: Lost in the medina, found by GPS: the blue dot never lies.
back camera of a smartphone in close up photography — Developers · Lithuania: Plazas and promenades: video calls home with the view behind you.
Developers · Lithuania: Plazas and promenades: video calls home with the view behind you.
person video calling using a laptop — Developers · Lithuania: Sandbox first: test provisioning without spending a cent.
Developers · Lithuania: Sandbox first: test provisioning without spending a cent.
man sitting in front of his laptop white looking at his phone — Developers · Lithuania: Old town, new tricks: translation apps working in real time.
Developers · Lithuania: Old town, new tricks: translation apps working in real time.
person holding smartphone with stylish case — Developers · Lithuania: Border crossings without the paperwork shuffle: ID photos stored on the phone.
Developers · Lithuania: Border crossings without the paperwork shuffle: ID photos stored on the phone.
modern workspace with smartphone and greenery — Developers · Lithuania: The museum queue skips itself: tickets bought online, straight to the door.
Developers · Lithuania: The museum queue skips itself: tickets bought online, straight to the door.
Close-up of hands holding a smartphone showing a mountain scene, captured outdoors in Banff. — Developers · Lithuania: The docs ship with runnable examples, not pseudocode.
Developers · Lithuania: The docs ship with runnable examples, not pseudocode.
a man standing on a mountain — Developers · Lithuania: Trailheads and lookouts: offline maps downloaded, just in case.
Developers · Lithuania: Trailheads and lookouts: offline maps downloaded, just in case.
Layla Yehia — Developers · Lithuania: Night markets and late trains — connected the whole way through.
Developers · Lithuania: Night markets and late trains — connected the whole way through.
people at an airport — Developers · Lithuania: The API issues eSIMs the way your app issues everything else — over HTTPS.
Developers · Lithuania: The API issues eSIMs the way your app issues everything else — over HTTPS.
Marjan Taghipour — Developers · Lithuania: The night bus: entertainment downloaded, messages queued, rest easy.
Developers · Lithuania: The night bus: entertainment downloaded, messages queued, rest easy.
Two adventurous backpackers using smartphones while waiting at a bustling train station. — Developers · Lithuania: Market mornings: look up the dish, translate the menu, pay by phone.
Developers · Lithuania: Market mornings: look up the dish, translate the menu, pay by phone.
a group of people wearing headsets — Developers · Lithuania: The status page is public — uptime you can verify, not claim.
Developers · Lithuania: The status page is public — uptime you can verify, not claim.

Explainer

esimgomobile Developers: 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. 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

  • Keep your home SIM active for two-factor codes from your bank; run data on the eSIM line.
  • Turn off auto-play on social apps before you fly; it quietly eats roaming data.
  • 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.
  • If a page won't load, toggle airplane mode for ten seconds — it forces a fresh network attach.
  • Set a data alert at 80% so a top-up never surprises you mid-trip.

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.

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.

The data room

The numbers behind Lithuania.

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.
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.2Get the answerClear result with next steps — save it or act on it.3Apply itJump straight to the plan, setting or page it points to.4Enter your detailsTrip, data needs, destination. The tool does the math.
Tool walkthrough. Every tool on esimgomobile follows the same honest pattern: input, math, answer.
Network at a glanceCoverage facts for LithuaniaNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in Lithuaniaesimgomobile 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. Lithuania connects to the fastest available local partner network automatically.
esimgomobile Developers: capability profileWhat the tool is good at — illustrative profileCapability profileFive strengths, ranked by what users feel first.Private by designyour inputs stay in your browserShares wellsend the answer to travel companionsAlways currentreflects live plans and coverageMobile friendlyworks on the phone in your handInstant resultsno waiting, no signupIllustrative profile based on tool design — not measured telemetry.
Capability profile. Capabilities measured by traveler value, not feature count.
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.1Scan the QR codeThe eSIM installs straight onto your phone. No store, no plastic SIM.2Pick your planChoose data for your trip — checkout takes about two minutes.3Land connectedSwitch the line on when you arrive — online before baggage claim.
Three-step setup. Three steps, about two minutes — the Developers · Lithuania ritual, no store visit.
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.2Check unlock statusCarrier-locked phones can't add an eSIM — verify first.3Set an 80% alertA top-up should never surprise you mid-trip.4Screenshot bookingsHotel address & confirmations, available with no signal.
Pro tips. Four habits for smooth trips — pro tips for Developers · Lithuania.
Who it's forFour travelers, one toolWho it's forBuilt for real trip shapes, not personas.1The planner
Compare before you commit — know the right plan weeks ahead.
esimgomobile network data2The remote worker
Size data for video calls and hotspotting with confidence.
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. Six traveler shapes, one tool — Developers · Lithuania's use cases.
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. Gigabytes translated into hours — the Developers · Lithuania usage guide.
Every plan includesNo tiers of basic dignity — these ship with all plansEvery plan includesThe baseline is generous on purpose.One-tap top-upMore data in seconds — no new QR code.Hotspot includedShare with your laptop or tablet at no extra cost.6 languagesThe app speaks your language, wherever you're from.5G where availableFastest local partner network, selected automatically.24/7 supportReal humans plus the Tele Agent, around the clock.Keep your WhatsAppYour existing number keeps working on the data line.
Included with every plan. From 5 GB to Unlimited, the inclusions don't shrink.
Questions, answeredThe six things everyone asks firstQuestions, answeredShort answers, no sales pitch.Do I keep my number?
Yes — WhatsApp & iMessage keep working on your existing number.
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.
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.
FAQ at a glance. Still curious? The Tele Agent answers anything else instantly.
Plan comparison matrixEvery plan for Lithuania — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to Lithuania.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 · Lithuania: four plans, four trip shapes — the matrix carries no fine print.

Take Lithuania with you, connected

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

See plans and pricing Talk to the Tele Agent