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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 Thailand

Using developers in Thailand? You are on the local edition — key facts for Thailand (capital Bangkok, dial code +66) are below. esimgomobile plans for Thailand are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalBangkok
Dial code+66
CurrencyThai baht (THB)
Time zoneUTC+7
Main languagesThai

Plans are live — see plans and pricing.

How it works

esimgomobile in action.

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

aerial photography of concrete buildings near sea under grey clouds and blue sky
“Customs line in Thailand was the perfect time to install — done by baggage claim.”
Jonas K.Verified traveler · Thailand
Traveler review for Developers · Thailand: “Customs line in Thailand was the perfect time to install — done by baggage claim.” — Jonas K..
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Tele Agent
What happens when my data runs out in Thailand?
You get a heads-up at 80%, then one-tap top-up. No roaming-bill surprises in Thailand.
Tele Agent chat on Developers · Thailand — 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.
My eSIM
90%5 GB left
Days left11
Top up+10 GB
Data dashboard on Developers · Thailand: 90% 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.
Recent speeds
Rio de Janeiro453 Mbps
Mexico City141 Mbps
Bali472 Mbps
Recent speeds for Developers · Thailand — Rio de Janeiro, Mexico City, Bali: 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?
25%
data left
Usage ring on Developers · Thailand — 25% 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.
Thailand · coverage
5 carriers · automatic selection
Coverage map on Developers · Thailand: 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?
esimgomobile.com
Checkout
Atlas Unlimited — Thailandtotal
Taxescalculated
Pay securely
256-bit encrypted · Amazon Pay
Secure checkout on Developers · Thailand: Atlas Unlimited, full price up front, no 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 transcript
Do I need a local number in Thailand?
A local Thailand number is available on this plan — I can attach it before you land.
Tele Agent transcript on Developers · Thailand: 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?
$8
entry monthly plan
launch fact
Launch fact behind Developers · Thailand: $8 entry monthly plan — 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.
Language
DeutschEnglishFrançais
Language picker on Developers · Thailand — Deutsch, English, Français: 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.
esimgomobile.com
Dashboard
Active eSIMs2
Data left10 GB
Current cityThailand
Web dashboard on Developers · Thailand: 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.
esimgomobile.com
API quickstart
curl https://api.esimgomobile.com/v1/esims \
  -H "Authorization: Bearer $KEY" \
  -d '{"country":"TH"}'
200 OK · 122 ms
REST API behind Developers · Thailand: 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
A woman in outdoor gear checking her smartphone, ready for adventure.
esimgomobile Developers
Travel guides · 8 min read
From the blog: “esimgomobile Developers” — travel guides in about eight minutes.
  1. 1Checkout shows the full price before you pay. Nothing hidden.
  2. 2Amazon Pay handles payment securely; taxes are calculated for you.
Virtual number
+1 205 988 2012
Routes toThailand
SMS + voiceEnabled
Your second line on Developers · Thailand: +1 205 988 2012 — 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.
eSIM plan
Atlas 20GB20 GB · 30 days
Thailand
Install eSIM
Atlas 20GB on Developers · Thailand — 20 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.
esimgomobile.com
Plans for Thailand
Atlas 5GB5 GB · 30 days
Atlas 20GB20 GB · 30 days
Atlas 50GB50 GB · 60 days
Compare plans
Plan picker on Developers · Thailand: 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.
Why travelers pick it
  • Keep WhatsApp number
  • 5G where available
  • Hotspot included
Why travelers pick Developers · Thailand: Keep WhatsApp number, 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.
glass with a drink and a straw by a laptop
Get connected
1 Pick a plan2 Scan QR3 Land online
Three steps on Developers · Thailand: pick a plan, scan the QR, land online.
  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.
Support
How does Developers · Thailand work?
Enter your trip details and get an instant answer — no account needed.
Support snippet — Developers · Thailand: what it does, in one honest answer.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Atlas 50GB
50 GB · 60 days
Thailand
Atlas 50GB — 50 GB · 60 days, prepaid and ready on Developers · Thailand.
  1. 1The plan chip: name, allowance and destination in one line.
  2. 2Everything you need to confirm you're on the right plan.
dome of church on sea coast in greece — Developers · Thailand: Café office: hotspot running, video call stable, no hotel Wi-Fi roulette.
Developers · Thailand: Café office: hotspot running, video call stable, no hotel Wi-Fi roulette.
Nothing Ahead — Developers · Thailand: Sunrise hikes start with a weather check — data on, boots on.
Developers · Thailand: Sunrise hikes start with a weather check — data on, boots on.
A woman sitting comfortably on a ferry, enjoying a peaceful journey. — Developers · Thailand: Sandbox first: test provisioning without spending a cent.
Developers · Thailand: Sandbox first: test provisioning without spending a cent.
a man in sunglasses and a shirt is standing on the beach with another man — Developers · Thailand: Duty-free browsing: price-checked against home before buying.
Developers · Thailand: Duty-free browsing: price-checked against home before buying.
girl using mobile phone — Developers · Thailand: The welcome home: eSIM deleted in one tap, no contract to cancel.
Developers · Thailand: The welcome home: eSIM deleted in one tap, no contract to cancel.
a view of new york — Developers · Thailand: Golden hour, fully online — photo backups upload before dinner.
Developers · Thailand: Golden hour, fully online — photo backups upload before dinner.
a person holding a headset — Developers · Thailand: The night bus: entertainment downloaded, messages queued, rest easy.
Developers · Thailand: The night bus: entertainment downloaded, messages queued, rest easy.
airplane over white clouds — Developers · Thailand: From departure lounge to arrival hall, the data never drops.
Developers · Thailand: From departure lounge to arrival hall, the data never drops.
Chris F — Developers · Thailand: Check-in lines move faster when your documents are on your phone.
Developers · Thailand: Check-in lines move faster when your documents are on your phone.
close up shot of smartphone screen — Developers · Thailand: Downtown, connected: the eSIM finds the fastest local network on its own.
Developers · Thailand: Downtown, connected: the eSIM finds the fastest local network on its own.
clouds around eiffel tower — Developers · Thailand: Plazas and promenades: video calls home with the view behind you.
Developers · Thailand: Plazas and promenades: video calls home with the view behind you.
downtown in the evening — Developers · Thailand: Currency exchange, skipped: the phone pays at the real rate.
Developers · Thailand: Currency exchange, skipped: the phone pays at the real rate.
midsection of man using mobile phone while sitting on table — Developers · Thailand: The business trip: client deck synced, video call joined from the taxi.
Developers · Thailand: The business trip: client deck synced, video call joined from the taxi.
photo of people having video conference — Developers · Thailand: The modern arrival: online before the seatbelt sign goes off.
Developers · Thailand: The modern arrival: online before the seatbelt sign goes off.
affectionate mother and daughter — Developers · Thailand: Hiking the ridge: trail map offline, emergency numbers saved.
Developers · Thailand: Hiking the ridge: trail map offline, emergency numbers saved.
father with son walking near light aircraft — Developers · Thailand: Souvenir hunting with live currency conversion in your pocket.
Developers · Thailand: Souvenir hunting with live currency conversion in your pocket.
Gaspar Zaldo — Developers · Thailand: Street-food stalls and mobile pay: dinner ordered without a word of the language.
Developers · Thailand: Street-food stalls and mobile pay: dinner ordered without a word of the language.
close up view of the eiffel tower in paris — Developers · Thailand: The status page is public — uptime you can verify, not claim.
Developers · Thailand: The status page is public — uptime you can verify, not claim.
Ethan Brooke — Developers · Thailand: API keys rotate in one click — the dashboard makes it boring.
Developers · Thailand: API keys rotate in one click — the dashboard makes it boring.
airport view from the airplane window — Developers · Thailand: One curl call provisions a Thailand eSIM — 200 OK in milliseconds.
Developers · Thailand: One curl call provisions a Thailand eSIM — 200 OK in milliseconds.

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.
  • Download offline maps for your destination — they save data and work in dead zones.
  • Check that your phone is carrier-unlocked before you buy any eSIM — locked phones can't add one.
  • Save your eSIM QR code somewhere safe (email it to yourself) in case you switch phones mid-trip.
  • 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

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.

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 Tele Agent closes the remaining gap: a question at midnight in a foreign terminal gets an answer in seconds, not a support ticket.

The data room

The numbers behind Thailand.

esimgomobile Developers — data dashboard

The product's headline numbers, switchable by dataset.

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

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

esimgomobile Developers — data dashboard. Plan allowances, validity windows and a typical usage curve for esimgomobile Developers — hover for exact values.
How esimgomobile Developers worksFour steps from question to answerHow this tool worksBuilt to answer one question well.1Enter your detailsTrip, data needs, destination. The tool does the math.2Open the toolNo account needed — it loads instantly in your browser.3Get the answerClear result with next steps — save it or act on it.4Apply itJump straight to the plan, setting or page it points to.
Tool walkthrough. Four steps from landing on Developers · Thailand to having your 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 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. Planners, sprinters, remote workers, families — who's it for.
Plan comparison matrixEvery plan for Thailand — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to Thailand.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 · Thailand: four plans, four trip shapes — the matrix carries no fine print.
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 · Thailand ritual, no store visit.
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.
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.
Do I keep my number?
Yes — WhatsApp & iMessage keep working on your existing number.
Which phones work?
Any carrier-unlocked, eSIM-capable iPhone or Android.
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.
Pro tipsFour habits of the always-connectedPro tipsSmall habits, big difference.1Screenshot bookingsHotel address & confirmations, available with no signal.2Set an 80% alertA top-up should never surprise you mid-trip.3Download offline mapsThey save data and work in dead zones.4Check unlock statusCarrier-locked phones can't add an eSIM — verify first.
Pro tips. Four habits for smooth trips — pro tips for Developers · Thailand.
Network at a glanceCoverage facts for ThailandNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in Thailandesimgomobile 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. The network resume for Developers · Thailand: 195 destinations, 5G where available, six languages.
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.Hotspot includedShare with your laptop or tablet at no extra cost.One-tap top-upMore data in seconds — no new QR code.6 languagesThe app speaks your language, wherever you're from.24/7 supportReal humans plus the Tele Agent, around the clock.
Included with every plan. Six things ship with every plan — the Developers · Thailand baseline, generous on purpose.
esimgomobile Developers: capability profileWhat the tool is good at — illustrative profileCapability profileFive strengths, ranked by what users feel first.Shares wellsend the answer to travel companionsPrivate by designyour inputs stay in your browserInstant 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 · Thailand does best — the capability profile, honestly ranked.

Take Thailand with you, connected

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