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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 Yemen

Using developers in Yemen? You are on the local edition — key facts for Yemen (capital Sanaa, dial code +967) are below. esimgomobile plans for Yemen are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalSanaa
Dial code+967
CurrencyYemeni rial (YER)
Time zoneUTC+3
Main languagesArabic

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.

Tele Agent
Can I keep my WhatsApp number?
Yes — your eSIM is data-first, so WhatsApp keeps working on your existing number in Yemen.
Tele Agent chat on Developers · Yemen — 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.
esimgomobile.com
API quickstart
curl https://api.esimgomobile.com/v1/esims \
  -H "Authorization: Bearer $KEY" \
  -d '{"country":"YE"}'
200 OK · 67 ms
REST API behind Developers · Yemen: issue eSIMs programmatically — 200 OK in milliseconds.
  1. 1Three plans side by side so the trade-off is obvious.
  2. 2Pick by trip length, not by decoding fine print.
esimgomobile.com
silver and black laptop near white mobile phone on wooden table
esimgomobile Developers
Travel guides · 8 min read
From the blog: “esimgomobile Developers” — travel guides in about eight minutes.
  1. 1Three plans side by side so the trade-off is obvious.
  2. 2Pick by trip length, not by decoding fine print.
airport view from the airplane window
“The Yemen number saved me at the rental counter — they called, I answered.”
Sam W.Verified traveler · Yemen
Traveler review for Developers · Yemen: “The Yemen number saved me at the rental counter — they called, I answered.” — Sam W..
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Virtual number
+1 205 788 8841
Routes toYemen
SMS + voiceEnabled
Your second line on Developers · Yemen: +1 205 788 8841 — real number, SMS and voice enabled.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Atlas 20GB
20 GB · 30 days
Yemen
Atlas 20GB — 20 GB · 30 days, prepaid and ready on Developers · Yemen.
  1. 1Usage ring compresses the whole plan into one glanceable number.
  2. 2Percent remaining is the only metric most travelers check.
$8
entry monthly plan
launch fact
Launch fact behind Developers · Yemen: $8 entry monthly plan — a fixed figure, not live telemetry.
  1. 1The roaming math, made visible: one price versus per-day carrier fees.
  2. 2This is the comparison most travelers never see until the bill.
Tele Agent transcript
Can I keep my WhatsApp number?
Yes — your eSIM is data-first, so WhatsApp keeps working on your existing number in Yemen.
Tele Agent transcript on Developers · Yemen: 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.
84%
data left
Usage ring on Developers · Yemen — 84% 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.
Why travelers pick it
  • 5G where available
  • 24/7 support
  • One-tap top-up
Why travelers pick Developers · Yemen: 5G where available, 24/7 support, One-tap top-up.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
My eSIM
73%20 GB left
Days left28
Top up+10 GB
Data dashboard on Developers · Yemen: 73% 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.
esimgomobile.com
Plans for Yemen
Atlas 5GB5 GB · 30 days
Atlas 20GB20 GB · 30 days
Atlas 50GB50 GB · 60 days
Compare plans
Plan picker on Developers · Yemen: 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.
eSIM installedYour Yemen plan is ready.
Push · just now
Push notification on Developers · Yemen: 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.
vs roaming
esimgomobile eSIMone price
Carrier roamingper-day fees
10 GB · 14 days · Yemen
The honest comparison on Developers · Yemen: one prepaid eSIM price versus carrier roaming.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Install
1 Scan2 Add3 Go
The Developers · Yemen install: QR in three steps — scan, add, go, about two minutes.
  1. 1The plan card shows exactly what you're buying — data, days, destination.
  2. 2One tap starts the two-minute QR install.
Tele Agent
“Setting up your Yemen line…”
AI voice agent on Developers · Yemen — answers spoken aloud, never a support ticket.
  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 · Yemen — 195 destinations live, 31 free tools, $8 entry monthly plan: numbers we publish and stand behind.
  1. 1Coverage pins show where partner networks are live.
  2. 2The map answers the only question that matters: will it work there?
Shuaizhi Tian
Yemen is calling.
Get your eSIM
Live now · no waitlist
“Yemen is calling.” — the CTA card on Developers · Yemen: plans live now, no waitlist.
  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.
Yemen · coverage
5 carriers · automatic selection
Coverage map on Developers · Yemen: 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?
Yemen · 5G
Signal widget on Developers · Yemen: network generation and place, always visible.
  1. 1The plan chip: name, allowance and destination in one line.
  2. 2Everything you need to confirm you're on the right plan.
people sitting on beach during sunset — Developers · Yemen: City lights after dark — the eSIM doesn't care what time it is.
Developers · Yemen: City lights after dark — the eSIM doesn't care what time it is.
Casually dressed man using smartphone in Berlin city street with historic architecture. — Developers · Yemen: Build on the same rails the Yemen checkout uses.
Developers · Yemen: Build on the same rails the Yemen checkout uses.
quiet night street scene in tokyo japan — Developers · Yemen: Travelers stay online from the moment they land — no SIM queues, no roaming shock.
Developers · Yemen: Travelers stay online from the moment they land — no SIM queues, no roaming shock.
A woman sitting comfortably on a ferry, enjoying a peaceful journey. — Developers · Yemen: Sandbox first: test provisioning without spending a cent.
Developers · Yemen: Sandbox first: test provisioning without spending a cent.
using a laptop and drinking coffee — Developers · Yemen: The departure board flips: gate found, lounge located, all on the eSIM.
Developers · Yemen: The departure board flips: gate found, lounge located, all on the eSIM.
Antoine Pittet — Developers · Yemen: The red-eye recovery: hotel early-check-in arranged mid-flight.
Developers · Yemen: The red-eye recovery: hotel early-check-in arranged mid-flight.
vibrant tokyo night street with neon signs — Developers · Yemen: Rain or shine, the connection holds — weather doesn't throttle data.
Developers · Yemen: Rain or shine, the connection holds — weather doesn't throttle data.
silhouetted eiffel tower at sunset — Developers · Yemen: The status page is public — uptime you can verify, not claim.
Developers · Yemen: The status page is public — uptime you can verify, not claim.
Kyle Karbowski — Developers · Yemen: Coast roads and country lanes — the map keeps up wherever you roam.
Developers · Yemen: Coast roads and country lanes — the map keeps up wherever you roam.
man on a video call — Developers · Yemen: One curl call provisions a Yemen eSIM — 200 OK in milliseconds.
Developers · Yemen: One curl call provisions a Yemen eSIM — 200 OK in milliseconds.
candid moment at mumbai airport viewing area — Developers · Yemen: The last night: photo album backed up, memories safe before wheels-up.
Developers · Yemen: The last night: photo album backed up, memories safe before wheels-up.
man walking at a river in mountains — Developers · Yemen: Souvenir hunting with live currency conversion in your pocket.
Developers · Yemen: Souvenir hunting with live currency conversion in your pocket.
vibrant nightlife in shinjuku tokyo — Developers · Yemen: The business trip: client deck synced, video call joined from the taxi.
Developers · Yemen: The business trip: client deck synced, video call joined from the taxi.
Yusuf Sabqi — Developers · Yemen: Family group chat: location shared, dinner plans settled in minutes.
Developers · Yemen: Family group chat: location shared, dinner plans settled in minutes.
JACK REDGATE — Developers · Yemen: Museum afternoons with audio guides streaming, not buffering.
Developers · Yemen: Museum afternoons with audio guides streaming, not buffering.
Mountain Covered with Snow — Developers · Yemen: Night markets and late trains — connected the whole way through.
Developers · Yemen: Night markets and late trains — connected the whole way through.
a man and child are silhouetted against an airport window — Developers · Yemen: The night bus: entertainment downloaded, messages queued, rest easy.
Developers · Yemen: The night bus: entertainment downloaded, messages queued, rest easy.
Chris F — Developers · Yemen: Currency exchange, skipped: the phone pays at the real rate.
Developers · Yemen: Currency exchange, skipped: the phone pays at the real rate.
LIU LIU — Developers · Yemen: Rooftop check-in: boarding passes and hotel keys, all on the phone.
Developers · Yemen: Rooftop check-in: boarding passes and hotel keys, all on the phone.
church on santorini — Developers · Yemen: Street-food stalls and mobile pay: dinner ordered without a word of the language.
Developers · Yemen: Street-food stalls and mobile pay: dinner ordered without a word of the language.

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.

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 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

  • Hotspot sparingly: one laptop tethered all day can burn through a week of phone data.
  • Save your eSIM QR code somewhere safe (email it to yourself) in case you switch phones mid-trip.
  • Set a data alert at 80% so a top-up never surprises you mid-trip.
  • 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.

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.

Charts & explainers

The numbers behind Yemen.

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.
Network at a glanceCoverage facts for YemenNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in Yemenesimgomobile 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. Yemen connects to the fastest available local partner network automatically.
Questions, answeredThe six things everyone asks firstQuestions, answeredShort answers, no sales pitch.Do I keep my number?
Yes — WhatsApp & iMessage keep working on your existing number.
What if data runs out?
80% alert, then one-tap top-up. No bill shock.
How fast is setup?
About two minutes: plan, QR scan, done.
Is it a contract?
No — prepaid. Service simply stops instead of charging extra.
Does hotspot work?
Yes — share your connection with laptop or tablet.
Which phones work?
Any carrier-unlocked, eSIM-capable iPhone or Android.
FAQ at a glance. Six questions every traveler asks — the Developers · Yemen answers, one screen.
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 planner
Compare before you commit — know the right plan weeks ahead.
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. Six traveler shapes, one tool — Developers · Yemen'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.1Scan the QR codeThe eSIM installs straight onto your phone. No store, no plastic SIM.2Land connectedSwitch the line on when you arrive — online before baggage claim.3Pick your planChoose data for your trip — checkout takes about two minutes.
Three-step setup. Buy, scan, land: the whole sequence fits in a coffee queue.
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.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.Keep your WhatsAppYour existing number keeps working on the data line.
Included with every plan. 5G, hotspot, WhatsApp continuity, top-up, support, six languages — all tiers.
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 companionsMobile friendlyworks on the phone in your handPrivate by designyour inputs stay in your browserAlways currentreflects live plans and coverageInstant resultsno waiting, no signupIllustrative profile based on tool design — not measured telemetry.
Capability profile. What Developers · Yemen does best — the capability profile, honestly ranked.
Plan comparison matrixEvery plan for Yemen — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to Yemen.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 Yemen; pick by trip length and appetite for data.
How esimgomobile Developers worksFour steps from question to answerHow this tool worksBuilt to answer one question well.1Apply itJump straight to the plan, setting or page it points to.2Open the toolNo account needed — it loads instantly in your browser.3Get the answerClear result with next steps — save it or act on it.4Enter your detailsTrip, data needs, destination. The tool does the math.
Tool walkthrough. Every tool on esimgomobile follows the same honest pattern: input, math, answer.
Pro tipsFour habits of the always-connectedPro tipsSmall habits, big difference.1Keep home SIM for 2FABank codes still arrive while data runs on the eSIM.2Install before you flyAirport Wi-Fi is the worst place to set up connectivity.3Download offline mapsThey save data and work in dead zones.4Screenshot bookingsHotel address & confirmations, available with no signal.
Pro tips. Four habits for smooth trips — pro tips for Developers · Yemen.

Take Yemen with you, connected

Prepaid, no contracts, no roaming surprises. The whole setup takes about two minutes.

See plans and pricing Talk to the Tele Agent