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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 Samoa

Using developers in Samoa? You are on the local edition — key facts for Samoa (capital Apia, dial code +685) are below. esimgomobile plans for Samoa are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalApia
Dial code+685
CurrencySamoan tālā (WST)
Time zoneUTC+13
Main languagesEnglish, Samoan

Plans are live — see plans and pricing.

Up close

The product, up close.

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

silver iphone on black surface
Get connected
1 Pick a plan2 Scan QR3 Land online
Three steps on Developers · Samoa: 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.
31
free tools
launch fact
Launch fact behind Developers · Samoa: 31 free tools — a fixed figure, not live telemetry.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
75%
data left
Usage ring on Developers · Samoa — 75% 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.
silhouette of 2 men and woman standing on beach during sunset
Samoa
eSIM dataLive
Local numberAvailable
5GYes
Coverage card on Developers · Samoa: data live, local number available, 5G where it exists.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Coverage
195
destinations live
Samoa5G ready
Check coverage
Coverage at a glance for Developers · Samoa: 195 destinations live, fastest local partner selected on its own.
  1. 1The plan card shows exactly what you're buying — data, days, destination.
  2. 2One tap starts the two-minute QR install.
Atlas 5GB
5 GB · 30 days
Samoa
Atlas 5GB — 5 GB · 30 days, prepaid and ready on Developers · Samoa.
  1. 1Signal widget: network generation and destination, always visible.
  2. 2Five bars, zero ambiguity about what you're connected to.
people under cloudy sky
“Switched plans mid-trip in Samoa. Took about a minute.”
Tara B.Verified traveler · Samoa
Traveler review for Developers · Samoa: “Switched plans mid-trip in Samoa. Took about a minute.” — Tara B..
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Recent speeds
Lisbon161 Mbps
Mexico City782 Mbps
Seoul396 Mbps
Recent speeds for Developers · Samoa — Lisbon, Mexico City, Seoul: 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.
Install
1 Scan2 Add3 Go
The Developers · Samoa 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.
My eSIM
58%50 GB left
Days left23
Top up+10 GB
Data dashboard on Developers · Samoa: 58% 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.
turned on macbook
Pack light. Stay connected in Samoa.
Get your eSIM
Live now · no waitlist
“Pack light. Stay connected in Samoa.” — the CTA card on Developers · Samoa: plans live now, no waitlist.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Speed test
289Mbps
5G · Samoa · 84 ms
Illustrative speed readout on Developers · Samoa: 289 Mbps, 84 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.
esimgomobile.com
Plans for Samoa
Atlas 5GB5 GB · 30 days
Atlas 20GB20 GB · 30 days
Atlas 50GB50 GB · 60 days
Compare plans
Plan picker on Developers · Samoa: 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.
Tele Agent
“Setting up your Samoa line…”
AI voice agent on Developers · Samoa — 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.
eSIM plan
Atlas UnlimitedUnlimited · 30 days
Samoa
Install eSIM
Atlas Unlimited on Developers · Samoa — Unlimited · 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.
esimgomobile.com
Checkout
Atlas 50GB — Samoatotal
Taxescalculated
Pay securely
256-bit encrypted · Amazon Pay
Secure checkout on Developers · Samoa: Atlas 50GB, full price up front, no fine print.
  1. 1Three plans side by side so the trade-off is obvious.
  2. 2Pick by trip length, not by decoding fine print.
Why travelers pick it
  • 24/7 support
  • Keep WhatsApp number
  • 5G where available
Why travelers pick Developers · Samoa: 24/7 support, 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
Neacsu Tudor
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.
Samoa · 5G
Signal widget on Developers · Samoa: network generation and place, always visible.
  1. 1Usage ring compresses the whole plan into one glanceable number.
  2. 2Percent remaining is the only metric most travelers check.
Network
5G
Samoa connected
Network widget for Developers · Samoa: 5G, full bars — zero ambiguity about the connection.
  1. 1The plan card shows exactly what you're buying — data, days, destination.
  2. 2One tap starts the two-minute QR install.
crop man working on laptop at table with domestic cat — Developers · Samoa: Border crossings without the paperwork shuffle: ID photos stored on the phone.
Developers · Samoa: Border crossings without the paperwork shuffle: ID photos stored on the phone.
view from an airplane window — Developers · Samoa: Coast roads and country lanes — the map keeps up wherever you roam.
Developers · Samoa: Coast roads and country lanes — the map keeps up wherever you roam.
LIU LIU — Developers · Samoa: Downtown, connected: the eSIM finds the fastest local network on its own.
Developers · Samoa: Downtown, connected: the eSIM finds the fastest local network on its own.
Dajana Reçi — Developers · Samoa: Coworking abroad: laptop tethered, calls crisp, deadlines met.
Developers · Samoa: Coworking abroad: laptop tethered, calls crisp, deadlines met.
a man and child are silhouetted against an airport window — Developers · Samoa: Trailheads and lookouts: offline maps downloaded, just in case.
Developers · Samoa: Trailheads and lookouts: offline maps downloaded, just in case.
interior of an airport terminal — Developers · Samoa: Golden hour, fully online — photo backups upload before dinner.
Developers · Samoa: Golden hour, fully online — photo backups upload before dinner.
city skyline — Developers · Samoa: The conference badge: QR ticket scanned, session schedule synced.
Developers · Samoa: The conference badge: QR ticket scanned, session schedule synced.
people on a video call — Developers · Samoa: Street-food stalls and mobile pay: dinner ordered without a word of the language.
Developers · Samoa: Street-food stalls and mobile pay: dinner ordered without a word of the language.
woman holding iphone in hand — Developers · Samoa: Café office: hotspot running, video call stable, no hotel Wi-Fi roulette.
Developers · Samoa: Café office: hotspot running, video call stable, no hotel Wi-Fi roulette.
Bas Linders — Developers · Samoa: Duty-free browsing: price-checked against home before buying.
Developers · Samoa: Duty-free browsing: price-checked against home before buying.
close up shot of a couple standing near luggages — Developers · Samoa: Every endpoint returns the same shape — learn one, know them all.
Developers · Samoa: Every endpoint returns the same shape — learn one, know them all.
people sitting on chairs in airport — Developers · Samoa: The commute, handled: podcasts downloaded, messages sent, no dead zones.
Developers · Samoa: The commute, handled: podcasts downloaded, messages sent, no dead zones.
person holding smartphone with stylish case — Developers · Samoa: The museum queue skips itself: tickets bought online, straight to the door.
Developers · Samoa: The museum queue skips itself: tickets bought online, straight to the door.
aerial view from airplane over barren landscape — Developers · Samoa: Street level: navigation, rideshares and reviews, all instant.
Developers · Samoa: Street level: navigation, rideshares and reviews, all instant.
close up photo of a smiling woman holding microphone — Developers · Samoa: One curl call provisions a Samoa eSIM — 200 OK in milliseconds.
Developers · Samoa: One curl call provisions a Samoa eSIM — 200 OK in milliseconds.
person typing on laptop computer — Developers · Samoa: Old town, new tricks: translation apps working in real time.
Developers · Samoa: Old town, new tricks: translation apps working in real time.
using a laptop and drinking coffee — Developers · Samoa: The business trip: client deck synced, video call joined from the taxi.
Developers · Samoa: The business trip: client deck synced, video call joined from the taxi.
a woman sitting with a laptop — Developers · Samoa: Market mornings: look up the dish, translate the menu, pay by phone.
Developers · Samoa: Market mornings: look up the dish, translate the menu, pay by phone.
close up photo of headset on a laptop — Developers · Samoa: Rate limits are generous and documented — no surprise 429s.
Developers · Samoa: Rate limits are generous and documented — no surprise 429s.
A woman in outdoor gear checking her smartphone, ready for adventure. — Developers · Samoa: Travelers stay online from the moment they land — no SIM queues, no roaming shock.
Developers · Samoa: Travelers stay online from the moment they land — no SIM queues, no roaming shock.

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. Choose data that fits the trip
    • Short city break? 5 GB. Two weeks with maps and video calls? 20 GB. Working remotely or hotspotting? 50 GB or Unlimited.
    • Every plan shows exactly what you get — no asterisks.
  2. Install in two minutes
    • Buy, scan the QR code, done. The whole thing happens on your phone, wherever you are.
    • Install days before you fly or minutes before boarding — your call.
  3. Switch on and go
    • Enable the eSIM line in settings when you arrive. It connects to the fastest local partner network on its own.
    • Your home number keeps working for calls and texts on your physical SIM if you keep it active.

Explainer

Good to know

  • Screenshot your hotel address and booking confirmations — you'll want them with no signal.
  • Charge your phone before long travel days; weak signal areas drain batteries faster.
  • If a page won't load, toggle airplane mode for ten seconds — it forces a fresh network attach.
  • Check that your phone is carrier-unlocked before you buy any eSIM — locked phones can't add one.
  • Download offline maps for your destination — they save data and work in dead zones.
  • Hotspot sparingly: one laptop tethered all day can burn through a week of phone data.

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

Samoa, visualized.

esimgomobile Developers — data dashboard

The product's headline numbers, switchable by dataset.

195
destinations live
global footprint
4
Atlas plans
prepaid, no contracts
~2 min
typical install
QR scan to online
6
app languages
EN ES FR DE PT JA
Atlas 5GB: 5 GB over 30 days — Weekend breaks & light useAtlas 5GB 5 GBAtlas 20GB: 20 GB over 30 days — Two-week trips & daily useAtlas 20GB 20 GBAtlas 50GB: 50 GB over 60 days — Remote work & hotspottingAtlas 50GB 50 GBAtlas Unlimited: Unlimited over 30 days — Heavy use, zero meteringAtlas Unlimited Unlimited
Atlas 5GB: 30-day validityAtlas 5GB 30 daysAtlas 20GB: 30-day validityAtlas 20GB 30 daysAtlas 50GB: 60-day validityAtlas 50GB 60 daysAtlas Unlimited: 30-day validityAtlas Unlimited 30 days
Illustrative — D1: 100% of maxIllustrative — D10: 70% of maxIllustrative — D20: 42% of maxIllustrative — D30: 12% of maxDay 1Day 10Day 20Day 30IllustrativeIllustrative 20 GB burn-down at moderate use.

Hover any bar or point for its exact value. Tabs switch datasets — everything on this panel is computed from live product data unless labeled illustrative.

esimgomobile Developers — data dashboard. Plan allowances, validity windows and a typical usage curve for esimgomobile Developers — hover for exact values.
Questions, answeredThe six things everyone asks firstQuestions, answeredShort answers, no sales pitch.How fast is setup?
About two minutes: plan, QR scan, done.
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.
Does hotspot work?
Yes — share your connection with laptop or tablet.
Do I keep my number?
Yes — WhatsApp & iMessage keep working on your existing number.
FAQ at a glance. Still curious? The Tele Agent answers anything else instantly.
Pro tipsFour habits of the always-connectedPro tipsSmall habits, big difference.1Download offline mapsThey save data and work in dead zones.2Screenshot bookingsHotel address & confirmations, available with no signal.3Check unlock statusCarrier-locked phones can't add an eSIM — verify first.4Set an 80% alertA top-up should never surprise you mid-trip.
Pro tips. Veterans do all four without thinking.
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 browserMobile friendlyworks on the phone in your handShares wellsend the answer to travel companionsIllustrative profile based on tool design — not measured telemetry.
Capability profile. Ranked by what travelers notice first, not by marketing priority.
Who it's forFour travelers, one toolWho it's forBuilt for real trip shapes, not personas.1The family organizer
One tool, every traveler's needs covered.
esimgomobile network data2The last-minute flyer
Answer in minutes, eSIM installed before boarding.
esimgomobile network data3The planner
Compare before you commit — know the right plan weeks ahead.
esimgomobile network data4The remote worker
Size data for video calls and hotspotting with confidence.
esimgomobile network data
Use cases. Six traveler shapes, one tool — Developers · Samoa's use cases.
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.2Pick your planChoose data for your trip — checkout takes about two minutes.3Scan the QR codeThe eSIM installs straight onto your phone. No store, no plastic SIM.
Three-step setup. Three steps, about two minutes — the Developers · Samoa ritual, no store visit.
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.2Apply itJump straight to the plan, setting or page it points to.3Enter your detailsTrip, data needs, destination. The tool does the math.4Open the toolNo account needed — it loads instantly in your browser.
Tool walkthrough. Four steps from landing on Developers · Samoa to having your answer.
Plan comparison matrixEvery plan for Samoa — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to Samoa.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 Samoa; pick by trip length and appetite for data.
Network at a glanceCoverage facts for SamoaNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in Samoaesimgomobile 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. Samoa connects to the fastest available local partner network automatically.
Every plan includesNo tiers of basic dignity — these ship with all plansEvery plan includesThe baseline is generous on purpose.6 languagesThe app speaks your language, wherever you're from.Keep your WhatsAppYour existing number keeps working on the data line.Hotspot includedShare with your laptop or tablet at no extra cost.5G where availableFastest local partner network, selected automatically.One-tap top-upMore data in seconds — no new QR code.24/7 supportReal humans plus the Tele Agent, around the clock.
Included with every plan. Six things ship with every plan — the Developers · Samoa baseline, generous on purpose.
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 · Samoa usage guide.

Start your Samoa trip online

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

See plans and pricing Talk to the Tele Agent