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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 Chad

Using developers in Chad? You are on the local edition — key facts for Chad (capital N'Djamena, dial code +235) are below. esimgomobile plans for Chad are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalN'Djamena
Dial code+235
CurrencyCentral African CFA franc (XAF)
Time zoneUTC+1
Main languagesFrench, Arabic

Plans are live — see plans and pricing.

How it works

Take the tour.

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

Chad · 5G
Signal widget on Developers · Chad: 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.
Speed test
763Mbps
5G · Chad · 30 ms
Illustrative speed readout on Developers · Chad: 763 Mbps, 30 ms — example figures, not live measurements.
  1. 1Illustrative speed readout: sample carrier, city and latency figures.
  2. 2The meter demonstrates the readout — figures are examples, not live measurements.
esimgomobile.com
API quickstart
curl https://api.esimgomobile.com/v1/esims \
  -H "Authorization: Bearer $KEY" \
  -d '{"country":"CH"}'
200 OK · 45 ms
REST API behind Developers · Chad: issue eSIMs programmatically — 200 OK in milliseconds.
  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
Checkout
Atlas 5GB — Chadtotal
Taxescalculated
Pay securely
256-bit encrypted · Amazon Pay
Secure checkout on Developers · Chad: Atlas 5GB, 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.
vs roaming
esimgomobile eSIMone price
Carrier roamingper-day fees
10 GB · 14 days · Chad
The honest comparison on Developers · Chad: one prepaid eSIM price versus carrier roaming.
  1. 1The roaming math, made visible: one price versus per-day carrier fees.
  2. 2This is the comparison most travelers never see until the bill.
esimgomobile.com
Plans for Chad
Atlas 5GB5 GB · 30 days
Atlas 20GB20 GB · 30 days
Atlas 50GB50 GB · 60 days
Compare plans
Plan picker on Developers · Chad: 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.
David Gan
“Landed in Chad and was online before the seatbelt sign went off.”
Yuki N.Verified traveler · Chad
Traveler review for Developers · Chad: “Landed in Chad and was online before the seatbelt sign went off.” — Yuki N..
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
Network
5G
Chad connected
Network widget for Developers · Chad: 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.
Language
PortuguêsEspañolFrançais
Language picker on Developers · Chad — Português, Español, Français: the app speaks six languages.
  1. 1Usage ring compresses the whole plan into one glanceable number.
  2. 2Percent remaining is the only metric most travelers check.
esimgomobile.com
Dashboard
Active eSIMs1
Data left50 GB
Current cityChad
Web dashboard on Developers · Chad: every eSIM, every trip, 50 GB left — one screen.
  1. 1Three plans side by side so the trade-off is obvious.
  2. 2Pick by trip length, not by decoding fine print.
Tele Agent
Will my phone work in Chad?
If it's carrier-unlocked and eSIM-capable, yes. I checked Chad bands — you're covered.
Tele Agent chat on Developers · Chad — real questions, specific answers, zero telecom jargon.
  1. 1Illustrative speed readout: sample carrier, city and latency figures.
  2. 2The meter demonstrates the readout — figures are examples, not live measurements.
man carrying orange backpack
Chad is calling.
Get your eSIM
Live now · no waitlist
“Chad is calling.” — the CTA card on Developers · Chad: 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.
195
destinations live
launch fact
Launch fact behind Developers · Chad: 195 destinations live — 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.
Launch facts
195destinations live
31free tools
$8entry monthly plan
Launch facts behind Developers · Chad — 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.
Tele Agent transcript
Can I keep my WhatsApp number?
Yes — your eSIM is data-first, so WhatsApp keeps working on your existing number in Chad.
Tele Agent transcript on Developers · Chad: 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?
esimgomobile.com
close up shot of a man using a smartphone
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.
My eSIM
52%10 GB left
Days left18
Top up+10 GB
Data dashboard on Developers · Chad: 52% remaining, days left, top-up one tap away.
  1. 1The Tele Agent answers in plain language — no telecom jargon.
  2. 2Every answer is specific to your trip, not a generic FAQ.
gray haired man signing the papers
Chad
eSIM dataLive
Local numberAvailable
5GYes
Coverage card on Developers · Chad: data live, local number available, 5G where it exists.
  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.
21%
data left
Usage ring on Developers · Chad — 21% 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.
Why travelers pick it
  • One-tap top-up
  • Keep WhatsApp number
  • Hotspot included
Why travelers pick Developers · Chad: One-tap top-up, Keep WhatsApp number, Hotspot included.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
people walking on the sand — Developers · Chad: Museum afternoons with audio guides streaming, not buffering.
Developers · Chad: Museum afternoons with audio guides streaming, not buffering.
neon lights by the street at night — Developers · Chad: Island time, online time: ferries, beaches and full signal.
Developers · Chad: Island time, online time: ferries, beaches and full signal.
laughing man and woman working in a call center — Developers · Chad: The window seat office: emails sent somewhere over the ocean.
Developers · Chad: The window seat office: emails sent somewhere over the ocean.
Two adventurous backpackers using smartphones while waiting at a bustling train station. — Developers · Chad: The departure board flips: gate found, lounge located, all on the eSIM.
Developers · Chad: The departure board flips: gate found, lounge located, all on the eSIM.
cascade buildings on steep slope of seashore — Developers · Chad: Sandbox first: test provisioning without spending a cent.
Developers · Chad: Sandbox first: test provisioning without spending a cent.
close up photo of a woman holding the microphone of her black headset — Developers · Chad: The connected trip: maps, messages and translation, all on one eSIM.
Developers · Chad: The connected trip: maps, messages and translation, all on one eSIM.
Josh Hild — Developers · Chad: Duty-free browsing: price-checked against home before buying.
Developers · Chad: Duty-free browsing: price-checked against home before buying.
Modern Airport Terminal — Developers · Chad: Café office: hotspot running, video call stable, no hotel Wi-Fi roulette.
Developers · Chad: Café office: hotspot running, video call stable, no hotel Wi-Fi roulette.
laptop by frappe — Developers · Chad: The long layover: streaming, working and messaging, all covered.
Developers · Chad: The long layover: streaming, working and messaging, all covered.
a blue wooden door on a white concrete wall — Developers · Chad: The viewpoint at golden hour: livestream the sunset to everyone back home.
Developers · Chad: The viewpoint at golden hour: livestream the sunset to everyone back home.
close up shot of headphones hanging on a laptop — Developers · Chad: The rental desk handshake: confirmation email open, license photo ready.
Developers · Chad: The rental desk handshake: confirmation email open, license photo ready.
Olivier Bergeron — Developers · Chad: The red-eye recovery: hotel early-check-in arranged mid-flight.
Developers · Chad: The red-eye recovery: hotel early-check-in arranged mid-flight.
side view of a woman wearing headset — Developers · Chad: Rooftop check-in: boarding passes and hotel keys, all on the phone.
Developers · Chad: Rooftop check-in: boarding passes and hotel keys, all on the phone.
man in white dress shirt using a laptop — Developers · Chad: Family group chat: location shared, dinner plans settled in minutes.
Developers · Chad: Family group chat: location shared, dinner plans settled in minutes.
sea bay at rock waterfront city — Developers · Chad: API keys rotate in one click — the dashboard makes it boring.
Developers · Chad: API keys rotate in one click — the dashboard makes it boring.
a pair of women in bikinis enjoying the beach — Developers · Chad: Every endpoint returns the same shape — learn one, know them all.
Developers · Chad: Every endpoint returns the same shape — learn one, know them all.
Roderick Salatan — Developers · Chad: Coast roads and country lanes — the map keeps up wherever you roam.
Developers · Chad: Coast roads and country lanes — the map keeps up wherever you roam.
man and woman wearing black headset smiling at each other — Developers · Chad: The modern arrival: online before the seatbelt sign goes off.
Developers · Chad: The modern arrival: online before the seatbelt sign goes off.
busy airport terminal with silhouetted travelers — Developers · Chad: Currency exchange, skipped: the phone pays at the real rate.
Developers · Chad: Currency exchange, skipped: the phone pays at the real rate.
stunning nighttime view of new york city skyline — Developers · Chad: Coworking abroad: laptop tethered, calls crisp, deadlines met.
Developers · Chad: Coworking abroad: laptop tethered, calls crisp, deadlines met.

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. Buy before you fly
    • Order from home, the hotel, or the departure lounge — delivery is instant and digital.
    • No shipping, no pickup counters, no airport SIM queues.
  2. Add the eSIM
    • One QR scan adds the plan to your phone. iPhone and Android both walk you through it in under a minute.
    • You can install now and activate later — the plan starts when you choose.
  3. Stay online abroad
    • Data, maps, translation and messaging work the moment you land.
    • Running low? Top up in one tap from your dashboard — no new QR code needed.

Explainer

Good to know

  • Save your eSIM QR code somewhere safe (email it to yourself) in case you switch phones mid-trip.
  • Turn off auto-play on social apps before you fly; it quietly eats roaming data.
  • Buy and install your eSIM before departure — airport Wi-Fi is the worst place to set up connectivity.
  • Set a data alert at 80% so a top-up never surprises you mid-trip.
  • Hotspot sparingly: one laptop tethered all day can burn through a week of phone data.
  • Keep your home SIM active for two-factor codes from your bank; run data on the eSIM line.

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.

By the numbers

Every chart that matters for Chad.

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.
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 · Chad ritual, no store visit.
Plan comparison matrixEvery plan for Chad — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to Chad.PLANDATAVALIDITYAtlas 5GBWeekend breaks & light use5 GB30 daysAtlas 20GBTwo-week trips & daily use20 GB30 daysAtlas 50GBRemote work & hotspotting50 GB60 daysAtlas UnlimitedHeavy use, zero meteringUnlimited30 days
Plan comparison matrix. Weekend sips, fortnight data, work-month gulps, or unlimited — pick by trip shape.
Questions, answeredThe six things everyone asks firstQuestions, answeredShort answers, no sales pitch.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.
Which phones work?
Any carrier-unlocked, eSIM-capable iPhone or Android.
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.
Does hotspot work?
Yes — share your connection with laptop or tablet.
FAQ at a glance. Six questions every traveler asks — the Developers · Chad answers, one screen.
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.3Enter your detailsTrip, data needs, destination. The tool does the math.4Get the answerClear result with next steps — save it or act on it.
Tool walkthrough. Developers · Chad, demystified: open, enter, answer, act.
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 · Chad usage guide.
esimgomobile Developers: capability profileWhat the tool is good at — illustrative profileCapability profileFive strengths, ranked by what users feel first.Private by designyour inputs stay in your browserInstant resultsno waiting, no signupShares wellsend the answer to travel companionsMobile friendlyworks on the phone in your handAlways currentreflects live plans and coverageIllustrative 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 planner
Compare before you commit — know the right plan weeks ahead.
esimgomobile network data2The last-minute flyer
Answer in minutes, eSIM installed before boarding.
esimgomobile network data3The remote worker
Size data for video calls and hotspotting with confidence.
esimgomobile network data4The family organizer
One tool, every traveler's needs covered.
esimgomobile network data
Use cases. If you recognize yourself here, the tool will pay for its click.
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.One-tap top-upMore data in seconds — no new QR code.24/7 supportReal humans plus the Tele Agent, around the clock.5G where availableFastest local partner network, selected automatically.
Included with every plan. Six things ship with every plan — the Developers · Chad baseline, generous on purpose.
Pro tipsFour habits of the always-connectedPro tipsSmall habits, big difference.1Screenshot bookingsHotel address & confirmations, available with no signal.2Keep home SIM for 2FABank codes still arrive while data runs on the eSIM.3Set an 80% alertA top-up should never surprise you mid-trip.4Check unlock statusCarrier-locked phones can't add an eSIM — verify first.
Pro tips. Four habits for smooth trips — pro tips for Developers · Chad.
Network at a glanceCoverage facts for ChadNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in Chadesimgomobile 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. Chad connects to the fastest available local partner network automatically.

Ready when Chad is

Pick a plan, check out securely, scan the QR code — you're online before you land.

See plans and pricing Talk to the Tele Agent