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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 Eswatini

Using developers in Eswatini? You are on the local edition — key facts for Eswatini (capital Mbabane, dial code +268) are below. esimgomobile plans for Eswatini are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalMbabane
Dial code+268
CurrencySwazi lilangeni (SZL)
Time zoneUTC+2
Main languagesEnglish, siSwati

Plans are live — see plans and pricing.

How it works

Twenty screens, twenty photos.

Twenty product screens and twenty field photos — this is what traveling connected looks like.

Recent speeds
Mexico City683 Mbps
New York557 Mbps
Paris672 Mbps
Recent speeds for Developers · Eswatini — Mexico City, New York, Paris: 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.
Tele Agent
“Setting up your Eswatini line…”
AI voice agent on Developers · Eswatini — answers spoken aloud, never a support ticket.
  1. 1The Tele Agent answers in plain language — no telecom jargon.
  2. 2Every answer is specific to your trip, not a generic FAQ.
Tele Agent transcript
How fast is the data in Eswatini?
Eswatini averages 5G in cities. Your plan connects to the fastest local network automatically.
Tele Agent transcript on Developers · Eswatini: real question, specific answer.
  1. 1Mockups illustrate the product flow — captions describe what's real.
  2. 2Figures labeled as examples show sample data, never live telemetry.
esimgomobile.com
Checkout
Atlas 20GB — Eswatinitotal
Taxescalculated
Pay securely
256-bit encrypted · Amazon Pay
Secure checkout on Developers · Eswatini: Atlas 20GB, 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.
Sahir Sujahudeen
“My hotspot ran the whole Airbnb in Eswatini for two weeks.”
Lena F.Verified traveler · Eswatini
Traveler review for Developers · Eswatini: “My hotspot ran the whole Airbnb in Eswatini for two weeks.” — Lena F..
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Tele Agent
How fast is the data in Eswatini?
Eswatini averages 5G in cities. Your plan connects to the fastest local network automatically.
Tele Agent chat on Developers · Eswatini — 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.
Network
5G
Eswatini connected
Network widget for Developers · Eswatini: 5G, full bars — zero ambiguity about the connection.
  1. 1The Tele Agent answers in plain language — no telecom jargon.
  2. 2Every answer is specific to your trip, not a generic FAQ.
eSIM installedYour Eswatini plan is ready.
Push · just now
Push notification on Developers · Eswatini: eSIM installed, plan ready to activate.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Virtual number
+1 205 216 1887
Routes toEswatini
SMS + voiceEnabled
Your second line on Developers · Eswatini: +1 205 216 1887 — 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.
Language
日本語EnglishFrançais
Language picker on Developers · Eswatini — 日本語, English, Français: the app speaks six languages.
  1. 1The plan chip: name, allowance and destination in one line.
  2. 2Everything you need to confirm you're on the right plan.
$8
entry monthly plan
launch fact
Launch fact behind Developers · Eswatini: $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.
santorini under clear blue sky
Eswatini
eSIM dataLive
Local numberAvailable
5GYes
Coverage card on Developers · Eswatini: data live, local number available, 5G where it exists.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
esimgomobile.com
Plans for Eswatini
Atlas 5GB5 GB · 30 days
Atlas 20GB20 GB · 30 days
Atlas 50GB50 GB · 60 days
Compare plans
Plan picker on Developers · Eswatini: 5GB, 20GB, 50GB and Unlimited — pick by trip, not fine print.
  1. 1The dashboard keeps every eSIM, every trip, in one place.
  2. 2Rows show data left, days left and current city at a glance.
esimgomobile.com
API quickstart
curl https://api.esimgomobile.com/v1/esims \
  -H "Authorization: Bearer $KEY" \
  -d '{"country":"ES"}'
200 OK · 99 ms
REST API behind Developers · Eswatini: 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.
a person holding a headset
Your Eswatini number is waiting.
Get your eSIM
Live now · no waitlist
“Your Eswatini number is waiting.” — the CTA card on Developers · Eswatini: plans live now, no waitlist.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Launch facts
195destinations live
31free tools
$8entry monthly plan
Launch facts behind Developers · Eswatini — 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.
48%
data left
Usage ring on Developers · Eswatini — 48% of data left: the number travelers check most.
  1. 1Usage ring compresses the whole plan into one glanceable number.
  2. 2Percent remaining is the only metric most travelers check.
Speed test
860Mbps
5G · Eswatini · 67 ms
Illustrative speed readout on Developers · Eswatini: 860 Mbps, 67 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.
vibrant tokyo street at night with neon lights
Get connected
1 Pick a plan2 Scan QR3 Land online
Three steps on Developers · Eswatini: pick a plan, scan the QR, land online.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Support
How does Developers · Eswatini work?
Enter your trip details and get an instant answer — no account needed.
Support snippet — Developers · Eswatini: 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.
Bernd Feurich — Developers · Eswatini: The connected trip: maps, messages and translation, all on one eSIM.
Developers · Eswatini: The connected trip: maps, messages and translation, all on one eSIM.
Erik Chistov — Developers · Eswatini: The API issues eSIMs the way your app issues everything else — over HTTPS.
Developers · Eswatini: The API issues eSIMs the way your app issues everything else — over HTTPS.
a man looking at mountains — Developers · Eswatini: Downtown, connected: the eSIM finds the fastest local network on its own.
Developers · Eswatini: Downtown, connected: the eSIM finds the fastest local network on its own.
a man in sunglasses and a shirt is standing on the beach with another man — Developers · Eswatini: Harbor views with full bars: coverage where travelers actually go.
Developers · Eswatini: Harbor views with full bars: coverage where travelers actually go.
Alexandre Moreira — Developers · Eswatini: Migrate from Twilio in three steps — the toolkit does the heavy lifting.
Developers · Eswatini: Migrate from Twilio in three steps — the toolkit does the heavy lifting.
Guilherme Rossi — Developers · Eswatini: Museum afternoons with audio guides streaming, not buffering.
Developers · Eswatini: Museum afternoons with audio guides streaming, not buffering.
Marc Coenen — Developers · Eswatini: Duty-free browsing: price-checked against home before buying.
Developers · Eswatini: Duty-free browsing: price-checked against home before buying.
people working as call center agents — Developers · Eswatini: Market mornings: look up the dish, translate the menu, pay by phone.
Developers · Eswatini: Market mornings: look up the dish, translate the menu, pay by phone.
wing of a flying airplane — Developers · Eswatini: Coast roads and country lanes — the map keeps up wherever you roam.
Developers · Eswatini: Coast roads and country lanes — the map keeps up wherever you roam.
this was a fun hike we found fresh bear tracks and lots of snow even though it was mid october — Developers · Eswatini: Old town, new tricks: translation apps working in real time.
Developers · Eswatini: Old town, new tricks: translation apps working in real time.
Tobias Bjørkli — Developers · Eswatini: Build on the same rails the Eswatini checkout uses.
Developers · Eswatini: Build on the same rails the Eswatini checkout uses.
woman at table with documents during meeting with colleagues — Developers · Eswatini: The rental desk handshake: confirmation email open, license photo ready.
Developers · Eswatini: The rental desk handshake: confirmation email open, license photo ready.
woman standing in front of a laptop — Developers · Eswatini: Real journeys, real connectivity — this is what the product is for.
Developers · Eswatini: Real journeys, real connectivity — this is what the product is for.
aerial view of midtown manhattan skyscrapers — Developers · Eswatini: The commute, handled: podcasts downloaded, messages sent, no dead zones.
Developers · Eswatini: The commute, handled: podcasts downloaded, messages sent, no dead zones.
stein egil liland — Developers · Eswatini: The sunrise ferry: tickets in the wallet app, timetable cached offline.
Developers · Eswatini: The sunrise ferry: tickets in the wallet app, timetable cached offline.
employees having a meeting inside the conference room — Developers · Eswatini: SDKs, a CLI, and an MCP server — the developer surface, complete.
Developers · Eswatini: SDKs, a CLI, and an MCP server — the developer surface, complete.
women and man sitting by table with laptop — Developers · Eswatini: Golden hour, fully online — photo backups upload before dinner.
Developers · Eswatini: Golden hour, fully online — photo backups upload before dinner.
close up view of the eiffel tower in paris — Developers · Eswatini: Rate limits are generous and documented — no surprise 429s.
Developers · Eswatini: Rate limits are generous and documented — no surprise 429s.
silhouette of people by the seashore — Developers · Eswatini: Webhooks tell you when data runs low, plans expire, top-ups land.
Developers · Eswatini: Webhooks tell you when data runs low, plans expire, top-ups land.
man standing on a grass with snow covered mountains background — Developers · Eswatini: Sunrise hikes start with a weather check — data on, boots on.
Developers · Eswatini: Sunrise hikes start with a weather check — data on, boots on.

Explainer

esimgomobile Developers: the full picture

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.

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.

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.
  • Download offline maps for your destination — they save data and work in dead zones.
  • Turn off auto-play on social apps before you fly; it quietly eats roaming data.
  • Check that your phone is carrier-unlocked before you buy any eSIM — locked phones can't add one.
  • 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.

These are the details that separate a smooth trip from a stressful one — small, unglamorous, and worth more than any feature list.

Explainer

Why travelers switch

And because everything is prepaid through Amazon Pay, the commercial relationship is simple: you pay for data, you get data, it ends when it ends.

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

Roaming bills taught a generation to fear their phones abroad. The eSIM generation simply never learned that fear — data is prepaid, visible and finite.

The data room

Every chart that matters for Eswatini.

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.
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 companionsAlways currentreflects live plans and coveragePrivate by designyour inputs stay in your browserInstant resultsno waiting, no signupMobile friendlyworks on the phone in your handIllustrative profile based on tool design — not measured telemetry.
Capability profile. Capabilities measured by traveler value, not feature count.
Every plan includesNo tiers of basic dignity — these ship with all plansEvery plan includesThe baseline is generous on purpose.5G where availableFastest local partner network, selected automatically.One-tap top-upMore data in seconds — no new QR code.Hotspot includedShare with your laptop or tablet at no extra cost.24/7 supportReal humans plus the Tele Agent, around the clock.Keep your WhatsAppYour existing number keeps working on the data line.6 languagesThe app speaks your language, wherever you're from.
Included with every plan. Six things ship with every plan — the Developers · Eswatini baseline, generous on purpose.
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. Three steps, about two minutes — the Developers · Eswatini 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.
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. Developers · Eswatini, demystified: open, enter, answer, act.
Network at a glanceCoverage facts for EswatiniNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in Eswatiniesimgomobile 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.
Plan comparison matrixEvery plan for Eswatini — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to Eswatini.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 Eswatini; pick by trip length and appetite for data.
Who it's forFour travelers, one toolWho it's forBuilt for real trip shapes, not personas.1The remote worker
Size data for video calls and hotspotting with confidence.
esimgomobile network data2The last-minute flyer
Answer in minutes, eSIM installed before boarding.
esimgomobile network data3The family organizer
One tool, every traveler's needs covered.
esimgomobile network data4The planner
Compare before you commit — know the right plan weeks ahead.
esimgomobile network data
Use cases. Six traveler shapes, one tool — Developers · Eswatini's use cases.
Pro tipsFour habits of the always-connectedPro tipsSmall habits, big difference.1Download offline mapsThey save data and work in dead zones.2Check unlock statusCarrier-locked phones can't add an eSIM — verify first.3Keep home SIM for 2FABank codes still arrive while data runs on the eSIM.4Screenshot bookingsHotel address & confirmations, available with no signal.
Pro tips. The small things that separate smooth trips from stressful ones.
Questions, answeredThe six things everyone asks firstQuestions, answeredShort answers, no sales pitch.Which phones work?
Any carrier-unlocked, eSIM-capable iPhone or Android.
Does hotspot work?
Yes — share your connection with laptop or tablet.
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.
Is it a contract?
No — prepaid. Service simply stops instead of charging extra.
What if data runs out?
80% alert, then one-tap top-up. No bill shock.
FAQ at a glance. Short answers, no sales pitch — the questions first, always.

Your Eswatini plan is two minutes away

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