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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 Micronesia

Using developers in Micronesia? You are on the local edition — key facts for Micronesia (capital Palikir, dial code +691) are below. esimgomobile plans for Micronesia are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalPalikir
Dial code+691
CurrencyUS dollar (USD)
Time zoneUTC+11
Main languagesEnglish

Plans are live — see plans and pricing.

Up close

Take the tour.

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

Atlas 20GB
20 GB · 30 days
Micronesia
Atlas 20GB — 20 GB · 30 days, prepaid and ready on Developers · Micronesia.
  1. 1Usage ring compresses the whole plan into one glanceable number.
  2. 2Percent remaining is the only metric most travelers check.
esimgomobile.com
Plans for Micronesia
Atlas 5GB5 GB · 30 days
Atlas 20GB20 GB · 30 days
Atlas 50GB50 GB · 60 days
Compare plans
Plan picker on Developers · Micronesia: 5GB, 20GB, 50GB and Unlimited — pick by trip, not fine print.
  1. 1Three plans side by side so the trade-off is obvious.
  2. 2Pick by trip length, not by decoding fine print.
Virtual number
+1 205 188 6938
Routes toMicronesia
SMS + voiceEnabled
Your second line on Developers · Micronesia: +1 205 188 6938 — real number, SMS and voice enabled.
  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.
vs roaming
esimgomobile eSIMone price
Carrier roamingper-day fees
10 GB · 14 days · Micronesia
The honest comparison on Developers · Micronesia: 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.
Why travelers pick it
  • One-tap top-up
  • 5G where available
  • Hotspot included
Why travelers pick Developers · Micronesia: One-tap top-up, 5G where available, Hotspot included.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
eSIM plan
Atlas 5GB5 GB · 30 days
Micronesia
Install eSIM
Atlas 5GB on Developers · Micronesia — 5 GB · 30 days, prepaid with the full price shown before you pay.
  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.
195
destinations live
launch fact
Launch fact behind Developers · Micronesia: 195 destinations live — a fixed figure, not live telemetry.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Network
5G
Micronesia connected
Network widget for Developers · Micronesia: 5G, full bars — zero ambiguity about the connection.
  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.
Micronesia · coverage
5 carriers · automatic selection
Coverage map on Developers · Micronesia: partner networks pinned, selection automatic.
  1. 1Mockups illustrate the product flow — captions describe what's real.
  2. 2Figures labeled as examples show sample data, never live telemetry.
Tele Agent transcript
How fast is the data in Micronesia?
Micronesia averages 5G in cities. Your plan connects to the fastest local network automatically.
Tele Agent transcript on Developers · Micronesia: 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.
esimgomobile.com
Dashboard
Active eSIMs4
Data left10 GB
Current cityMicronesia
Web dashboard on Developers · Micronesia: every eSIM, every trip, 10 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.
Install
1 Scan2 Add3 Go
The Developers · Micronesia install: QR in three steps — scan, add, go, about two minutes.
  1. 1Illustrative speed readout: sample carrier, city and latency figures.
  2. 2The meter demonstrates the readout — figures are examples, not live measurements.
31%
data left
Usage ring on Developers · Micronesia — 31% 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.
esimgomobile.com
API quickstart
curl https://api.esimgomobile.com/v1/esims \
  -H "Authorization: Bearer $KEY" \
  -d '{"country":"MI"}'
200 OK · 167 ms
REST API behind Developers · Micronesia: 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.
Support
How does Developers · Micronesia work?
Enter your trip details and get an instant answer — no account needed.
Support snippet — Developers · Micronesia: 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.
Speed test
504Mbps
5G · Micronesia · 35 ms
Illustrative speed readout on Developers · Micronesia: 504 Mbps, 35 ms — example figures, not live measurements.
  1. 1The plan card shows exactly what you're buying — data, days, destination.
  2. 2One tap starts the two-minute QR install.
Launch facts
195destinations live
31free tools
$8entry monthly plan
Launch facts behind Developers · Micronesia — 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.
Coverage
195
destinations live
Micronesia5G ready
Check coverage
Coverage at a glance for Developers · Micronesia: 195 destinations live, fastest local partner selected on its own.
  1. 1Live usage ring: see remaining data at a glance, no mental math.
  2. 2Top-up button sits right where you need it when data runs low.
Recent speeds
Singapore934 Mbps
Istanbul866 Mbps
Paris933 Mbps
Recent speeds for Developers · Micronesia — Singapore, Istanbul, Paris: 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 Micronesia?
If it's carrier-unlocked and eSIM-capable, yes. I checked Micronesia bands — you're covered.
Tele Agent chat on Developers · Micronesia — 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.
terraces on santorini greece — Developers · Micronesia: Market mornings: look up the dish, translate the menu, pay by phone.
Developers · Micronesia: Market mornings: look up the dish, translate the menu, pay by phone.
Pixabay — Developers · Micronesia: Trailheads and lookouts: offline maps downloaded, just in case.
Developers · Micronesia: Trailheads and lookouts: offline maps downloaded, just in case.
Gerhard Lipold — Developers · Micronesia: Rate limits are generous and documented — no surprise 429s.
Developers · Micronesia: Rate limits are generous and documented — no surprise 429s.
rising sun behind nyc downtown — Developers · Micronesia: Old town, new tricks: translation apps working in real time.
Developers · Micronesia: Old town, new tricks: translation apps working in real time.
photo of city buildings — Developers · Micronesia: The night bus: entertainment downloaded, messages queued, rest easy.
Developers · Micronesia: The night bus: entertainment downloaded, messages queued, rest easy.
quiet tokyo night street scene with people — Developers · Micronesia: Currency exchange, skipped: the phone pays at the real rate.
Developers · Micronesia: Currency exchange, skipped: the phone pays at the real rate.
people sitting on beach during sunset — Developers · Micronesia: Street level: navigation, rideshares and reviews, all instant.
Developers · Micronesia: Street level: navigation, rideshares and reviews, all instant.
Pok Rie — Developers · Micronesia: The viewpoint at golden hour: livestream the sunset to everyone back home.
Developers · Micronesia: The viewpoint at golden hour: livestream the sunset to everyone back home.
view of the eifel tower from the street — Developers · Micronesia: The departure board flips: gate found, lounge located, all on the eSIM.
Developers · Micronesia: The departure board flips: gate found, lounge located, all on the eSIM.
night scene of ramen shops in tokyo — Developers · Micronesia: Every endpoint returns the same shape — learn one, know them all.
Developers · Micronesia: Every endpoint returns the same shape — learn one, know them all.
vibrant night cityscape of shinjuku tokyo — Developers · Micronesia: Build on the same rails the Micronesia checkout uses.
Developers · Micronesia: Build on the same rails the Micronesia checkout uses.
people in airport terminal — Developers · Micronesia: From departure lounge to arrival hall, the data never drops.
Developers · Micronesia: From departure lounge to arrival hall, the data never drops.
airport view from the airplane window — Developers · Micronesia: Golden hour, fully online — photo backups upload before dinner.
Developers · Micronesia: Golden hour, fully online — photo backups upload before dinner.
Alexey K. — Developers · Micronesia: The business trip: client deck synced, video call joined from the taxi.
Developers · Micronesia: The business trip: client deck synced, video call joined from the taxi.
lone hiker exploring dolomite mountains landscape — Developers · Micronesia: Street-food stalls and mobile pay: dinner ordered without a word of the language.
Developers · Micronesia: Street-food stalls and mobile pay: dinner ordered without a word of the language.
coffee shop workspace with laptop and iced coffee — Developers · Micronesia: Rainy-day backup plan: indoor attractions researched from the hostel bunk.
Developers · Micronesia: Rainy-day backup plan: indoor attractions researched from the hostel bunk.
Rosaria Sapuppo — Developers · Micronesia: The welcome home: eSIM deleted in one tap, no contract to cancel.
Developers · Micronesia: The welcome home: eSIM deleted in one tap, no contract to cancel.
Anurag Jamwal — Developers · Micronesia: The museum queue skips itself: tickets bought online, straight to the door.
Developers · Micronesia: The museum queue skips itself: tickets bought online, straight to the door.
a turkish airplane flying above the white clouds — Developers · Micronesia: Museum afternoons with audio guides streaming, not buffering.
Developers · Micronesia: Museum afternoons with audio guides streaming, not buffering.
Hb zee — Developers · Micronesia: Coast roads and country lanes — the map keeps up wherever you roam.
Developers · Micronesia: Coast roads and country lanes — the map keeps up wherever you roam.

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. 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

  • Charge your phone before long travel days; weak signal areas drain batteries faster.
  • Turn off auto-play on social apps before you fly; it quietly eats roaming data.
  • Download offline maps for your destination — they save data and work in dead zones.
  • 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.
  • WhatsApp, iMessage and FaceTime keep your existing number on a data eSIM — no need to tell anyone a new number.

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 Micronesia.

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.
Plan comparison matrixEvery plan for Micronesia — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to Micronesia.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.
Every plan includesNo tiers of basic dignity — these ship with all plansEvery plan includesThe baseline is generous on purpose.24/7 supportReal humans plus the Tele Agent, around the clock.One-tap top-upMore data in seconds — no new QR code.5G where availableFastest local partner network, selected automatically.Hotspot includedShare with your laptop or tablet at no extra cost.6 languagesThe app speaks your language, wherever you're from.Keep your WhatsAppYour existing number keeps working on the data line.
Included with every plan. Six things ship with every plan — the Developers · Micronesia baseline, generous on purpose.
esimgomobile Developers: capability profileWhat the tool is good at — illustrative profileCapability profileFive strengths, ranked by what users feel first.Always currentreflects live plans and coverageInstant resultsno waiting, no signupPrivate by designyour inputs stay in your browserShares wellsend the answer to travel companionsMobile friendlyworks on the phone in your handIllustrative profile based on tool design — not measured telemetry.
Capability profile. What Developers · Micronesia does best — the capability profile, honestly ranked.
Questions, answeredThe six things everyone asks firstQuestions, answeredShort answers, no sales pitch.Which phones work?
Any carrier-unlocked, eSIM-capable iPhone or Android.
What if data runs out?
80% alert, then one-tap top-up. No bill shock.
Is it a contract?
No — prepaid. Service simply stops instead of charging extra.
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.
Does hotspot work?
Yes — share your connection with laptop or tablet.
FAQ at a glance. Six questions every traveler asks — the Developers · Micronesia answers, one screen.
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 family organizer
One tool, every traveler's needs covered.
esimgomobile network data3The remote worker
Size data for video calls and hotspotting with confidence.
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 MicronesiaNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in Micronesiaesimgomobile 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.
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.2Scan the QR codeThe eSIM installs straight onto your phone. No store, no plastic SIM.3Land connectedSwitch the line on when you arrive — online before baggage claim.
Three-step setup. Install days before departure or minutes before boarding — your call.
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.
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.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. Four steps from landing on Developers · Micronesia to having your answer.
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.2Keep home SIM for 2FABank codes still arrive while data runs on the eSIM.3Screenshot bookingsHotel address & confirmations, available with no signal.4Set an 80% alertA top-up should never surprise you mid-trip.
Pro tips. Four habits for smooth trips — pro tips for Developers · Micronesia.

Ready when Micronesia is

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