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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 Argentina

Using developers in Argentina? You are on the local edition — key facts for Argentina (capital Buenos Aires, dial code +54) are below. esimgomobile plans for Argentina are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalBuenos Aires
Dial code+54
CurrencyArgentine peso (ARS)
Time zoneUTC-3
Main languagesSpanish

Plans are live — see plans and pricing.

Product tour

Take the tour.

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

eSIM installedYour Argentina plan is ready.
Push · just now
Push notification on Developers · Argentina: 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.
Tele Agent
How fast is the data in Argentina?
Argentina averages 5G in cities. Your plan connects to the fastest local network automatically.
Tele Agent chat on Developers · Argentina — real questions, specific answers, zero telecom jargon.
  1. 1The plan card shows exactly what you're buying — data, days, destination.
  2. 2One tap starts the two-minute QR install.
vs roaming
esimgomobile eSIMone price
Carrier roamingper-day fees
10 GB · 14 days · Argentina
The honest comparison on Developers · Argentina: 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.
father and child holding hands at airport window
Get connected
1 Pick a plan2 Scan QR3 Land online
Three steps on Developers · Argentina: 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.
esimgomobile.com
Dashboard
Active eSIMs4
Data left10 GB
Current cityArgentina
Web dashboard on Developers · Argentina: every eSIM, every trip, 10 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.
Support
How does Developers · Argentina work?
Enter your trip details and get an instant answer — no account needed.
Support snippet — Developers · Argentina: what it does, in one honest answer.
  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.
mother and child with suitcase walking indoors
“The Argentina number saved me at the rental counter — they called, I answered.”
Yuki N.Verified traveler · Argentina
Traveler review for Developers · Argentina: “The Argentina number saved me at the rental counter — they called, I answered.” — Yuki N..
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Argentina · 5G
Signal widget on Developers · Argentina: 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.
Recent speeds
Singapore201 Mbps
Seoul521 Mbps
Tokyo912 Mbps
Recent speeds for Developers · Argentina — Singapore, Seoul, Tokyo: illustrative 5G figures, not live measurements.
  1. 1A real support transcript: the question, then the specific answer.
  2. 2This is what 'AI support' actually looks like in practice.
67%
data left
Usage ring on Developers · Argentina — 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.
Argentina · coverage
5 carriers · automatic selection
Coverage map on Developers · Argentina: partner networks pinned, selection automatic.
  1. 1Coverage pins show where partner networks are live.
  2. 2The map answers the only question that matters: will it work there?
eSIM plan
Atlas 20GB20 GB · 30 days
Argentina
Install eSIM
Atlas 20GB on Developers · Argentina — 20 GB · 30 days, prepaid with the full price shown before you pay.
  1. 1Illustrative speed readout: sample carrier, city and latency figures.
  2. 2The meter demonstrates the readout — figures are examples, not live measurements.
Tele Agent
“Setting up your Argentina line…”
AI voice agent on Developers · Argentina — 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.
Tele Agent transcript
Can I keep my WhatsApp number?
Yes — your eSIM is data-first, so WhatsApp keeps working on your existing number in Argentina.
Tele Agent transcript on Developers · Argentina: 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?
My eSIM
47%50 GB left
Days left12
Top up+10 GB
Data dashboard on Developers · Argentina: 47% 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.
João Vítor Heinrichs
Argentina
eSIM dataLive
Local numberAvailable
5GYes
Coverage card on Developers · Argentina: 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":"AR"}'
200 OK · 114 ms
REST API behind Developers · Argentina: 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.
esimgomobile.com
Plans for Argentina
Atlas 5GB5 GB · 30 days
Atlas 20GB20 GB · 30 days
Atlas 50GB50 GB · 60 days
Compare plans
Plan picker on Developers · Argentina: 5GB, 20GB, 50GB and Unlimited — pick by trip, not fine print.
  1. 1Checkout shows the full price before you pay. Nothing hidden.
  2. 2Amazon Pay handles payment securely; taxes are calculated for you.
interior of an airport terminal
Ready for Argentina?
Get your eSIM
Live now · no waitlist
“Ready for Argentina?” — the CTA card on Developers · Argentina: plans live now, no waitlist.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Coverage
195
destinations live
Argentina5G ready
Check coverage
Coverage at a glance for Developers · Argentina: 195 destinations live, fastest local partner selected on its own.
  1. 1The Tele Agent answers in plain language — no telecom jargon.
  2. 2Every answer is specific to your trip, not a generic FAQ.
man sitting on sofa talking on webcam on laptop — Developers · Argentina: SDKs, a CLI, and an MCP server — the developer surface, complete.
Developers · Argentina: SDKs, a CLI, and an MCP server — the developer surface, complete.
grayscale photo of person talking on headset — Developers · Argentina: The connected trip: maps, messages and translation, all on one eSIM.
Developers · Argentina: The connected trip: maps, messages and translation, all on one eSIM.
Mikhail Nilov — Developers · Argentina: Travelers stay online from the moment they land — no SIM queues, no roaming shock.
Developers · Argentina: Travelers stay online from the moment they land — no SIM queues, no roaming shock.
graffiti laden rooftop overlooking new york skyline — Developers · Argentina: Plazas and promenades: video calls home with the view behind you.
Developers · Argentina: Plazas and promenades: video calls home with the view behind you.
close up of apple cellphone camera — Developers · Argentina: Island time, online time: ferries, beaches and full signal.
Developers · Argentina: Island time, online time: ferries, beaches and full signal.
professional business meeting in modern office — Developers · Argentina: Every endpoint returns the same shape — learn one, know them all.
Developers · Argentina: Every endpoint returns the same shape — learn one, know them all.
Zizi zi — Developers · Argentina: Coast roads and country lanes — the map keeps up wherever you roam.
Developers · Argentina: Coast roads and country lanes — the map keeps up wherever you roam.
Brown Desert Under the Blue Sky — Developers · Argentina: Border crossings without the paperwork shuffle: ID photos stored on the phone.
Developers · Argentina: Border crossings without the paperwork shuffle: ID photos stored on the phone.
employees busy working inside an office — Developers · Argentina: The docs ship with runnable examples, not pseudocode.
Developers · Argentina: The docs ship with runnable examples, not pseudocode.
wing of flying airplane — Developers · Argentina: The sunrise ferry: tickets in the wallet app, timetable cached offline.
Developers · Argentina: The sunrise ferry: tickets in the wallet app, timetable cached offline.
employees having a meeting inside the conference room — Developers · Argentina: One curl call provisions a Argentina eSIM — 200 OK in milliseconds.
Developers · Argentina: One curl call provisions a Argentina eSIM — 200 OK in milliseconds.
a man conducting a meeting virtually — Developers · Argentina: API keys rotate in one click — the dashboard makes it boring.
Developers · Argentina: API keys rotate in one click — the dashboard makes it boring.
Valeria Drozdova — Developers · Argentina: The window seat office: emails sent somewhere over the ocean.
Developers · Argentina: The window seat office: emails sent somewhere over the ocean.
silhouette of person in airport — Developers · Argentina: The viewpoint at golden hour: livestream the sunset to everyone back home.
Developers · Argentina: The viewpoint at golden hour: livestream the sunset to everyone back home.
a man and a person sitting on the beach — Developers · Argentina: Lost in the medina, found by GPS: the blue dot never lies.
Developers · Argentina: Lost in the medina, found by GPS: the blue dot never lies.
photo of people holding papers — Developers · Argentina: Currency exchange, skipped: the phone pays at the real rate.
Developers · Argentina: Currency exchange, skipped: the phone pays at the real rate.
two women collaborating on a project indoors — Developers · Argentina: The conference badge: QR ticket scanned, session schedule synced.
Developers · Argentina: The conference badge: QR ticket scanned, session schedule synced.
a woman using a laptop while sitting on a chair — Developers · Argentina: Build on the same rails the Argentina checkout uses.
Developers · Argentina: Build on the same rails the Argentina checkout uses.
woman having video call — Developers · Argentina: The museum queue skips itself: tickets bought online, straight to the door.
Developers · Argentina: The museum queue skips itself: tickets bought online, straight to the door.
Kristian Bechthold — Developers · Argentina: Hiking the ridge: trail map offline, emergency numbers saved.
Developers · Argentina: Hiking the ridge: trail map offline, emergency numbers saved.

Explainer

esimgomobile Developers: the full picture

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

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

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

  • Turn off auto-play on social apps before you fly; it quietly eats roaming data.
  • Hotspot sparingly: one laptop tethered all day can burn through a week of phone data.
  • If a page won't load, toggle airplane mode for ten seconds — it forces a fresh network attach.
  • Buy and install your eSIM before departure — airport Wi-Fi is the worst place to set up connectivity.
  • 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.

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 Argentina.

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.
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 planner
Compare before you commit — know the right plan weeks ahead.
esimgomobile network data2The last-minute flyer
Answer in minutes, eSIM installed before boarding.
esimgomobile network data3The family organizer
One tool, every traveler's needs covered.
esimgomobile network data4The remote worker
Size data for video calls and hotspotting with confidence.
esimgomobile network data
Use cases. If you recognize yourself here, the tool will pay for its click.
Network at a glanceCoverage facts for ArgentinaNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in Argentinaesimgomobile 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. Argentina connects to the fastest available local partner network automatically.
Plan comparison matrixEvery plan for Argentina — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to Argentina.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 · Argentina: four plans, four trip shapes — the matrix carries no fine print.
Pro tipsFour habits of the always-connectedPro tipsSmall habits, big difference.1Install before you flyAirport Wi-Fi is the worst place to set up connectivity.2Download offline mapsThey save data and work in dead zones.3Set an 80% alertA top-up should never surprise you mid-trip.4Screenshot bookingsHotel address & confirmations, available with no signal.
Pro tips. The small things that separate smooth trips from stressful ones.
Questions, answeredThe six things everyone asks firstQuestions, answeredShort answers, no sales pitch.Which phones work?
Any carrier-unlocked, eSIM-capable iPhone or Android.
Is it a contract?
No — prepaid. Service simply stops instead of charging extra.
Do I keep my number?
Yes — WhatsApp & iMessage keep working on your existing number.
Does hotspot work?
Yes — share your connection with laptop or tablet.
How fast is setup?
About two minutes: plan, QR scan, done.
What if data runs out?
80% alert, then one-tap top-up. No bill shock.
FAQ at a glance. Still curious? The Tele Agent answers anything else instantly.
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 companionsInstant resultsno waiting, no signupAlways currentreflects live plans and coverageMobile friendlyworks on the phone in your handIllustrative profile based on tool design — not measured telemetry.
Capability profile. What Developers · Argentina does best — the capability profile, honestly ranked.
Get connected in three stepsFrom purchase to online in about two minutesGet connected in three stepsNo store visit, no plastic SIM, no waiting for the post.1Land connectedSwitch the line on when you arrive — online before baggage claim.2Scan the QR codeThe eSIM installs straight onto your phone. No store, no plastic SIM.3Pick your planChoose data for your trip — checkout takes about two minutes.
Three-step setup. Three steps, about two minutes — the Developers · Argentina ritual, no store visit.
How esimgomobile Developers worksFour steps from question to answerHow this tool worksBuilt to answer one question well.1Enter your detailsTrip, data needs, destination. The tool does the math.2Apply itJump straight to the plan, setting or page it points to.3Get the answerClear result with next steps — save it or act on it.4Open the toolNo account needed — it loads instantly in your browser.
Tool walkthrough. Four steps from landing on Developers · Argentina to having your answer.
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.24/7 supportReal humans plus the Tele Agent, around the clock.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.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.

Ready when Argentina is

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

See plans and pricing Talk to the Tele Agent