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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 France

Using developers in France? You are on the local edition — key facts for France (capital Paris, dial code +33) are below. esimgomobile plans for France are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalParis
Dial code+33
CurrencyEuro (EUR)
Time zoneUTC+1
Main languagesFrench

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.

vs roaming
esimgomobile eSIMone price
Carrier roamingper-day fees
10 GB · 14 days · esimgomobile Developers
The honest comparison on esimgomobile Developers: 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.
esimgomobile.com
Checkout
Atlas 50GB — esimgomobile Developerstotal
Taxescalculated
Pay securely
256-bit encrypted · Amazon Pay
Secure checkout on esimgomobile Developers: Atlas 50GB, full price up front, no 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.
Network
5G
esimgomobile Developers connected
Network widget for esimgomobile Developers: 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.
businesspeople brainstorming in conference room
Ready for your trip?
Get your eSIM
“Ready for your trip?” — the banner on esimgomobile Developers: 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.
esimgomobile Developers · 5G
Signal widget on esimgomobile Developers: 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.
My eSIM
50%10 GB left
Days left16
Top up+10 GB
Data dashboard on esimgomobile Developers: 50% remaining, days left, top-up one tap away.
  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
194Mbps
5G · esimgomobile Developers · 40 ms
Illustrative speed readout on esimgomobile Developers: 194 Mbps, 40 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.
Language
PortuguêsFrançais日本語
Language picker on esimgomobile Developers — Português, Français, 日本語: the app speaks six languages.
  1. 1Signal widget: network generation and destination, always visible.
  2. 2Five bars, zero ambiguity about what you're connected to.
Support
How does esimgomobile Developers work?
Enter your trip details and get an instant answer — no account needed.
Support snippet — esimgomobile Developers: 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.
space gray iphone 8
Get connected
1 Pick a plan2 Scan QR3 Land online
Three steps on esimgomobile Developers: 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.
Rene Terp
Pack light. Stay connected on your trip.
Get your eSIM
Live now · no waitlist
“Pack light. Stay connected on your trip.” — the CTA card on esimgomobile Developers: plans live now, no waitlist.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
45%
data left
Usage ring on esimgomobile Developers — 45% 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
Tokyo596 Mbps
Sydney426 Mbps
Tokyo466 Mbps
Recent speeds for esimgomobile Developers — Tokyo, Sydney, Tokyo: 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?
Virtual number
+1 205 468 4169
Routes toesimgomobile Developers
SMS + voiceEnabled
Your second line on esimgomobile Developers: +1 205 468 4169 — real number, SMS and voice enabled.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Tele Agent
“Setting up your esimgomobile Developers line…”
AI voice agent on esimgomobile Developers — 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.
esimgomobile.com
API quickstart
curl https://api.esimgomobile.com/v1/esims \
  -H "Authorization: Bearer $KEY" \
  -d '{"country":"ES"}'
200 OK · 145 ms
REST API behind esimgomobile Developers: 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.
esimgomobile.com
green cactus plant near white concrete wall
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.
Install
1 Scan2 Add3 Go
The esimgomobile Developers install: QR in three steps — scan, add, go, about two minutes.
  1. 1The Tele Agent answers in plain language — no telecom jargon.
  2. 2Every answer is specific to your trip, not a generic FAQ.
$8
entry monthly plan
launch fact
Launch fact behind esimgomobile Developers: $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.
eSIM installedYour esimgomobile Developers plan is ready.
Push · just now
Push notification on esimgomobile Developers: eSIM installed, plan ready to activate.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
aerial view of airplane wing through window — esimgomobile Developers: Downtown, connected: the eSIM finds the fastest local network on its own.
esimgomobile Developers: Downtown, connected: the eSIM finds the fastest local network on its own.
man drinking coffee while working on his laptop — esimgomobile Developers: The welcome home: eSIM deleted in one tap, no contract to cancel.
esimgomobile Developers: The welcome home: eSIM deleted in one tap, no contract to cancel.
pensive man looking at laptop — esimgomobile Developers: Street level: navigation, rideshares and reviews, all instant.
esimgomobile Developers: Street level: navigation, rideshares and reviews, all instant.
group of friends walking along beach — esimgomobile Developers: The window seat office: emails sent somewhere over the ocean.
esimgomobile Developers: The window seat office: emails sent somewhere over the ocean.
architects looking at plans in office — esimgomobile Developers: Plazas and promenades: video calls home with the view behind you.
esimgomobile Developers: Plazas and promenades: video calls home with the view behind you.
dome of church on sea coast in greece — esimgomobile Developers: Street-food stalls and mobile pay: dinner ordered without a word of the language.
esimgomobile Developers: Street-food stalls and mobile pay: dinner ordered without a word of the language.
Brendan Rühli — esimgomobile Developers: The conference badge: QR ticket scanned, session schedule synced.
esimgomobile Developers: The conference badge: QR ticket scanned, session schedule synced.
Willian Justen de Vasconcellos — esimgomobile Developers: Trailheads and lookouts: offline maps downloaded, just in case.
esimgomobile Developers: Trailheads and lookouts: offline maps downloaded, just in case.
Olivier Bergeron — esimgomobile Developers: Duty-free browsing: price-checked against home before buying.
esimgomobile Developers: Duty-free browsing: price-checked against home before buying.
man using laptop computer — esimgomobile Developers: The commute, handled: podcasts downloaded, messages sent, no dead zones.
esimgomobile Developers: The commute, handled: podcasts downloaded, messages sent, no dead zones.
dramatic view of the eiffel tower in paris — esimgomobile Developers: The museum queue skips itself: tickets bought online, straight to the door.
esimgomobile Developers: The museum queue skips itself: tickets bought online, straight to the door.
a woman sitting with a laptop — esimgomobile Developers: The group chat stays live across every border you cross.
esimgomobile Developers: The group chat stays live across every border you cross.
manhattan cityscape with skyscrapers — esimgomobile Developers: Border crossings without the paperwork shuffle: ID photos stored on the phone.
esimgomobile Developers: Border crossings without the paperwork shuffle: ID photos stored on the phone.
a women having a picnic together — esimgomobile Developers: Plazas and promenades: video calls home with the view behind you.
esimgomobile Developers: Plazas and promenades: video calls home with the view behind you.
woman wearing headphones while video calling to patient — esimgomobile Developers: The departure board flips: gate found, lounge located, all on the eSIM.
esimgomobile Developers: The departure board flips: gate found, lounge located, all on the eSIM.
hiker in mountains raising hands — esimgomobile Developers: Street-food stalls and mobile pay: dinner ordered without a word of the language.
esimgomobile Developers: Street-food stalls and mobile pay: dinner ordered without a word of the language.
Tobias Bjørkli — esimgomobile Developers: Rain or shine, the connection holds — weather doesn't throttle data.
esimgomobile Developers: Rain or shine, the connection holds — weather doesn't throttle data.
eiffel tower at sunset — esimgomobile Developers: The business trip: client deck synced, video call joined from the taxi.
esimgomobile Developers: The business trip: client deck synced, video call joined from the taxi.
back camera of a smartphone in close up photography — esimgomobile Developers: Currency exchange, skipped: the phone pays at the real rate.
esimgomobile Developers: Currency exchange, skipped: the phone pays at the real rate.
busy airport terminal with silhouetted travelers — esimgomobile Developers: Island time, online time: ferries, beaches and full signal.
esimgomobile Developers: Island time, online time: ferries, beaches and full signal.

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.

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.

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

  • 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.
  • 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.
  • Hotspot sparingly: one laptop tethered all day can burn through a week of phone data.
  • 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

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.

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.

See the math

The numbers behind esimgomobile Developers.

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.
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.5G where availableFastest local partner network, selected automatically.24/7 supportReal humans plus the Tele Agent, around the clock.6 languagesThe app speaks your language, wherever you're from.One-tap top-upMore data in seconds — no new QR code.Hotspot includedShare with your laptop or tablet at no extra cost.
Included with every plan. Six things ship with every plan — the esimgomobile Developers baseline, generous on purpose.
Network at a glanceCoverage facts, network-wideNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available, auto-selectedesimgomobile 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. Every destination connects to the fastest available local partner network automatically.
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.
Pro tipsFour habits of the always-connectedPro tipsSmall habits, big difference.1Set an 80% alertA top-up should never surprise you mid-trip.2Download offline mapsThey save data and work in dead zones.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 esimgomobile Developers.
esimgomobile Developers: capability profileWhat the tool is good at — illustrative profileCapability profileFive strengths, ranked by what users feel first.Always currentreflects live plans and coverageMobile friendlyworks on the phone in your handPrivate by designyour inputs stay in your browserShares wellsend the answer to travel companionsInstant resultsno waiting, no signupIllustrative profile based on tool design — not measured telemetry.
Capability profile. Capabilities measured by traveler value, not feature count.
Plan comparison matrixEvery plan for every destination we cover — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to every destination we cover.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. All four Atlas plans work in every destination we cover; pick by trip length and appetite for data.
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.
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.2Open the toolNo account needed — it loads instantly in your browser.3Enter your detailsTrip, data needs, destination. The tool does the math.4Apply itJump straight to the plan, setting or page it points to.
Tool walkthrough. Every tool on esimgomobile follows the same honest pattern: input, math, answer.
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 last-minute flyer
Answer in minutes, eSIM installed before boarding.
esimgomobile network data4The family organizer
One tool, every traveler's needs covered.
esimgomobile network data
Use cases. If you recognize yourself here, the tool will pay for its click.
Questions, answeredThe six things everyone asks firstQuestions, answeredShort answers, no sales pitch.Is it a contract?
No — prepaid. Service simply stops instead of charging extra.
Which phones work?
Any carrier-unlocked, eSIM-capable iPhone or Android.
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.
How fast is setup?
About two minutes: plan, QR scan, done.
Does hotspot work?
Yes — share your connection with laptop or tablet.
FAQ at a glance. Still curious? The Tele Agent answers anything else instantly.

Your plan is two minutes away

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

See plans and pricing Talk to the Tele Agent