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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 Poland

Using developers in Poland? You are on the local edition — key facts for Poland (capital Warsaw, dial code +48) are below. esimgomobile plans for Poland are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalWarsaw
Dial code+48
CurrencyPolish złoty (PLN)
Time zoneUTC+1
Main languagesPolish

Plans are live — see plans and pricing.

See it live

esimgomobile in action.

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

Network
5G
Poland connected
Network widget for Developers · Poland: 5G, full bars — zero ambiguity about the connection.
  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
Bali655 Mbps
Sydney497 Mbps
Rio de Janeiro756 Mbps
Recent speeds for Developers · Poland — Bali, Sydney, Rio de Janeiro: 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?
vs roaming
esimgomobile eSIMone price
Carrier roamingper-day fees
10 GB · 14 days · Poland
The honest comparison on Developers · Poland: 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.
eSIM installedYour Poland plan is ready.
Push · just now
Push notification on Developers · Poland: 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.
My eSIM
86%50 GB left
Days left27
Top up+10 GB
Data dashboard on Developers · Poland: 86% 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.
Tele Agent transcript
What happens when my data runs out in Poland?
You get a heads-up at 80%, then one-tap top-up. No roaming-bill surprises in Poland.
Tele Agent transcript on Developers · Poland: 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?
a turkish airplane flying above the white clouds
Pack light. Stay connected in Poland.
Get your eSIM
Live now · no waitlist
“Pack light. Stay connected in Poland.” — the CTA card on Developers · Poland: 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.
esimgomobile.com
Plans for Poland
Atlas 5GB5 GB · 30 days
Atlas 20GB20 GB · 30 days
Atlas 50GB50 GB · 60 days
Compare plans
Plan picker on Developers · Poland: 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.
Install
1 Scan2 Add3 Go
The Developers · Poland install: QR in three steps — scan, add, go, about two minutes.
  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
Do I need a local number in Poland?
A local Poland number is available on this plan — I can attach it before you land.
Tele Agent chat on Developers · Poland — real questions, specific answers, zero telecom jargon.
  1. 1The plan card shows exactly what you're buying — data, days, destination.
  2. 2One tap starts the two-minute QR install.
esimgomobile.com
API quickstart
curl https://api.esimgomobile.com/v1/esims \
  -H "Authorization: Bearer $KEY" \
  -d '{"country":"PO"}'
200 OK · 163 ms
REST API behind Developers · Poland: 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.
53%
data left
Usage ring on Developers · Poland — 53% 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.
Virtual number
+1 205 538 5086
Routes toPoland
SMS + voiceEnabled
Your second line on Developers · Poland: +1 205 538 5086 — 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.
天玑 不器
Get connected
1 Pick a plan2 Scan QR3 Land online
Three steps on Developers · Poland: 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.
Tele Agent
“Setting up your Poland line…”
AI voice agent on Developers · Poland — answers spoken aloud, never a support ticket.
  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.
view of seashore from santorini in greece
Poland
eSIM dataLive
Local numberAvailable
5GYes
Coverage card on Developers · Poland: data live, local number available, 5G where it exists.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
Why travelers pick it
  • Instant QR install
  • 5G where available
  • Hotspot included
Why travelers pick Developers · Poland: Instant QR install, 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.
31
free tools
launch fact
Launch fact behind Developers · Poland: 31 free tools — 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.
esimgomobile.com
Checkout
Atlas 50GB — Polandtotal
Taxescalculated
Pay securely
256-bit encrypted · Amazon Pay
Secure checkout on Developers · Poland: Atlas 50GB, 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.
Support
How does Developers · Poland work?
Enter your trip details and get an instant answer — no account needed.
Support snippet — Developers · Poland: what it does, in one honest answer.
  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.
behind of woman gesturing — Developers · Poland: Plazas and promenades: video calls home with the view behind you.
Developers · Poland: Plazas and promenades: video calls home with the view behind you.
men s blue leather jacket and brown backpack — Developers · Poland: Rooftop check-in: boarding passes and hotel keys, all on the phone.
Developers · Poland: Rooftop check-in: boarding passes and hotel keys, all on the phone.
people at an airport — Developers · Poland: The welcome home: eSIM deleted in one tap, no contract to cancel.
Developers · Poland: The welcome home: eSIM deleted in one tap, no contract to cancel.
man and woman video call on laptop — Developers · Poland: Currency exchange, skipped: the phone pays at the real rate.
Developers · Poland: Currency exchange, skipped: the phone pays at the real rate.
people working in a call center — Developers · Poland: Real journeys, real connectivity — this is what the product is for.
Developers · Poland: Real journeys, real connectivity — this is what the product is for.
city buildings aerial view — Developers · Poland: Duty-free browsing: price-checked against home before buying.
Developers · Poland: Duty-free browsing: price-checked against home before buying.
Willian Justen de Vasconcellos — Developers · Poland: Downtown, connected: the eSIM finds the fastest local network on its own.
Developers · Poland: Downtown, connected: the eSIM finds the fastest local network on its own.
close up photo of an operator working — Developers · Poland: Street level: navigation, rideshares and reviews, all instant.
Developers · Poland: Street level: navigation, rideshares and reviews, all instant.
female coworkers having video conference via netbook and discussing project — Developers · Poland: The last night: photo album backed up, memories safe before wheels-up.
Developers · Poland: The last night: photo album backed up, memories safe before wheels-up.
an airplane window with a view — Developers · Poland: The night bus: entertainment downloaded, messages queued, rest easy.
Developers · Poland: The night bus: entertainment downloaded, messages queued, rest easy.
Juan Coronel — Developers · Poland: The conference badge: QR ticket scanned, session schedule synced.
Developers · Poland: The conference badge: QR ticket scanned, session schedule synced.
white concrete buildings — Developers · Poland: Check-in lines move faster when your documents are on your phone.
Developers · Poland: Check-in lines move faster when your documents are on your phone.
church on sea shore — Developers · Poland: Museum afternoons with audio guides streaming, not buffering.
Developers · Poland: Museum afternoons with audio guides streaming, not buffering.
A person holding a smartphone in an airport with luggage visible, ideal for travel and tech concepts. — Developers · Poland: One curl call provisions a Poland eSIM — 200 OK in milliseconds.
Developers · Poland: One curl call provisions a Poland eSIM — 200 OK in milliseconds.
children silhouette in airport terminal — Developers · Poland: The group chat stays live across every border you cross.
Developers · Poland: The group chat stays live across every border you cross.
a group of people with a laptop — Developers · Poland: Sunrise hikes start with a weather check — data on, boots on.
Developers · Poland: Sunrise hikes start with a weather check — data on, boots on.
amazed daughter and mother in airport hallway — Developers · Poland: The commute, handled: podcasts downloaded, messages sent, no dead zones.
Developers · Poland: The commute, handled: podcasts downloaded, messages sent, no dead zones.
Chris F — Developers · Poland: Travelers stay online from the moment they land — no SIM queues, no roaming shock.
Developers · Poland: Travelers stay online from the moment they land — no SIM queues, no roaming shock.
woman using laptop at a cafe — Developers · Poland: Café office: hotspot running, video call stable, no hotel Wi-Fi roulette.
Developers · Poland: Café office: hotspot running, video call stable, no hotel Wi-Fi roulette.
Skyline of a Modern City with Illuminated Buildings at Night — Developers · Poland: The business trip: client deck synced, video call joined from the taxi.
Developers · Poland: The business trip: client deck synced, video call joined from the taxi.

Explainer

esimgomobile Developers: the full picture

Everything on this page exists to answer one question well: how does esimgomobile fit into your trip? The sections below go deep so you never need a second tab.

The 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.

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

Explainer

Good to know

  • Charge your phone before long travel days; weak signal areas drain batteries faster.
  • Download offline maps for your destination — they save data and work in dead zones.
  • Set a data alert at 80% so a top-up never surprises you mid-trip.
  • WhatsApp, iMessage and FaceTime keep your existing number on a data eSIM — no need to tell anyone a new number.
  • Hotspot sparingly: one laptop tethered all day can burn through a week of phone data.
  • 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

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

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.

Visual guides

Poland, visualized.

esimgomobile Developers — data dashboard

The product's headline numbers, switchable by dataset.

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

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

esimgomobile Developers — data dashboard. Plan allowances, validity windows and a typical usage curve for esimgomobile Developers — hover for exact values.
esimgomobile Developers: capability profileWhat the tool is good at — illustrative profileCapability profileFive strengths, ranked by what users feel first.Always currentreflects live plans and coverageShares wellsend the answer to travel companionsInstant resultsno waiting, no signupMobile friendlyworks on the phone in your handPrivate by designyour inputs stay in your browserIllustrative profile based on tool design — not measured telemetry.
Capability profile. Capabilities measured by traveler value, not feature count.
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. Buy, scan, land: the whole sequence fits in a coffee queue.
Plan comparison matrixEvery plan for Poland — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to Poland.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.Is it a contract?
No — prepaid. Service simply stops instead of charging extra.
Which phones work?
Any carrier-unlocked, eSIM-capable iPhone or Android.
What if data runs out?
80% alert, then one-tap top-up. No bill shock.
How fast is setup?
About two minutes: plan, QR scan, done.
Does hotspot work?
Yes — share your connection with laptop or tablet.
Do I keep my number?
Yes — WhatsApp & iMessage keep working on your existing number.
FAQ at a glance. Six questions every traveler asks — the Developers · Poland answers, one screen.
Network at a glanceCoverage facts for PolandNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in Polandesimgomobile 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.
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.
Pro tipsFour habits of the always-connectedPro tipsSmall habits, big difference.1Install before you flyAirport Wi-Fi is the worst place to set up connectivity.2Screenshot bookingsHotel address & confirmations, available with no signal.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. Veterans do all four without thinking.
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 remote worker
Size data for video calls and hotspotting with confidence.
esimgomobile network data3The last-minute flyer
Answer in minutes, eSIM installed before boarding.
esimgomobile network data4The family organizer
One tool, every traveler's needs covered.
esimgomobile network data
Use cases. Six traveler shapes, one tool — Developers · Poland's use cases.
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.Hotspot includedShare with your laptop or tablet at no extra cost.6 languagesThe app speaks your language, wherever you're from.Keep your WhatsAppYour existing number keeps working on the data line.24/7 supportReal humans plus the Tele Agent, around the clock.One-tap top-upMore data in seconds — no new QR code.
Included with every plan. From 5 GB to Unlimited, the inclusions don't shrink.
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.2Open the toolNo account needed — it loads instantly in your browser.3Enter your detailsTrip, data needs, destination. The tool does the math.4Apply itJump straight to the plan, setting or page it points to.
Tool walkthrough. Developers · Poland, demystified: open, enter, answer, act.

Take Poland with you, connected

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

See plans and pricing Talk to the Tele Agent