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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 Netherlands

Using developers in the Netherlands? You are on the local edition — key facts for Netherlands (capital Amsterdam, dial code +31) are below. esimgomobile plans for Netherlands are live now — monthly plans from $8/mo and one-time travel packs from $3.65, with live checkout.

CapitalAmsterdam
Dial code+31
CurrencyEuro (EUR)
Time zoneUTC+1
Main languagesDutch

Plans are live — see plans and pricing.

Inside the app

Twenty screens, twenty photos.

Every screen below is the real flow: plans, coverage, speed and support, rendered for this page.

31
free tools
launch fact
Launch fact behind Developers · the Netherlands: 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.
Tele Agent
Will my phone work in the Netherlands?
If it's carrier-unlocked and eSIM-capable, yes. I checked the Netherlands bands — you're covered.
Tele Agent chat on Developers · the Netherlands — 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.
Atlas 5GB
5 GB · 30 days
the Netherlands
Atlas 5GB — 5 GB · 30 days, prepaid and ready on Developers · the Netherlands.
  1. 1Usage ring compresses the whole plan into one glanceable number.
  2. 2Percent remaining is the only metric most travelers check.
eSIM plan
Atlas 20GB20 GB · 30 days
the Netherlands
Install eSIM
Atlas 20GB on Developers · the Netherlands — 20 GB · 30 days, prepaid with the full price shown before you pay.
  1. 1The Tele Agent answers in plain language — no telecom jargon.
  2. 2Every answer is specific to your trip, not a generic FAQ.
paris street photo
Get connected
1 Pick a plan2 Scan QR3 Land online
Three steps on Developers · the Netherlands: pick a plan, scan the QR, land online.
  1. 1Coverage status at a glance: data live, number available, 5G ready.
  2. 2Green means go — no guessing about what's supported.
the Netherlands · 5G
Signal widget on Developers · the Netherlands: 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.
Recent speeds
Mexico City385 Mbps
New York738 Mbps
Rio de Janeiro495 Mbps
Recent speeds for Developers · the Netherlands — Mexico City, New York, Rio de Janeiro: 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 the Netherlands line…”
AI voice agent on Developers · the Netherlands — 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.
esimgomobile.com
Checkout
Atlas 5GB — the Netherlandstotal
Taxescalculated
Pay securely
256-bit encrypted · Amazon Pay
Secure checkout on Developers · the Netherlands: Atlas 5GB, full price up front, no 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 the Netherlands plan is ready.
Push · just now
Push notification on Developers · the Netherlands: 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.
Language
PortuguêsFrançaisEnglish
Language picker on Developers · the Netherlands — Português, Français, English: 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.
Coverage
195
destinations live
the Netherlands5G ready
Check coverage
Coverage at a glance for Developers · the Netherlands: 195 destinations live, fastest local partner selected on its own.
  1. 1The plan card shows exactly what you're buying — data, days, destination.
  2. 2One tap starts the two-minute QR install.
Virtual number
+1 205 188 1802
Routes tothe Netherlands
SMS + voiceEnabled
Your second line on Developers · the Netherlands: +1 205 188 1802 — 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.
Why travelers pick it
  • Keep WhatsApp number
  • 5G where available
  • Hotspot included
Why travelers pick Developers · the Netherlands: Keep WhatsApp number, 5G where available, Hotspot included.
  1. 1A real traveler quote, tied to the destination it mentions.
  2. 2Reviews reference actual trips, not generic praise.
man drawing a pie chart on paper
the Netherlands is calling.
Get your eSIM
“the Netherlands is calling.” — the banner on Developers · the Netherlands: two minutes from curious to connected.
  1. 1A real support transcript: the question, then the specific answer.
  2. 2This is what 'AI support' actually looks like in practice.
Support
How does Developers · the Netherlands work?
Enter your trip details and get an instant answer — no account needed.
Support snippet — Developers · the Netherlands: 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.
Launch facts
195destinations live
31free tools
$8entry monthly plan
Launch facts behind Developers · the Netherlands — 195 destinations live, 31 free tools, $8 entry monthly plan: numbers we publish and stand behind.
  1. 1Mockups illustrate the product flow — captions describe what's real.
  2. 2Figures labeled as examples show sample data, never live telemetry.
Tele Agent transcript
Will my phone work in the Netherlands?
If it's carrier-unlocked and eSIM-capable, yes. I checked the Netherlands bands — you're covered.
Tele Agent transcript on Developers · the Netherlands: 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
man carrying orange backpack
esimgomobile Developers…rst, down to the SIM
Travel guides · 8 min read
From the blog: “esimgomobile Developers…rst, down to the SIM” — 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.
vs roaming
esimgomobile eSIMone price
Carrier roamingper-day fees
10 GB · 14 days · the Netherlands
The honest comparison on Developers · the Netherlands: 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.
woman in brown t shirt pushing her pink luggage and man in black long sleeves pushing trolley — Developers · the Netherlands: Coast roads and country lanes — the map keeps up wherever you roam.
Developers · the Netherlands: Coast roads and country lanes — the map keeps up wherever you roam.
Pok Rie — Developers · the Netherlands: The food tour: every recommendation looked up on the spot.
Developers · the Netherlands: The food tour: every recommendation looked up on the spot.
neon lights by the street at night — Developers · the Netherlands: Border crossings without the paperwork shuffle: ID photos stored on the phone.
Developers · the Netherlands: Border crossings without the paperwork shuffle: ID photos stored on the phone.
Anton Massalov — Developers · the Netherlands: Souvenir hunting with live currency conversion in your pocket.
Developers · the Netherlands: Souvenir hunting with live currency conversion in your pocket.
Man using a smartphone on a train journey through scenic landscape. — Developers · the Netherlands: The departure board flips: gate found, lounge located, all on the eSIM.
Developers · the Netherlands: The departure board flips: gate found, lounge located, all on the eSIM.
view from airplane window over turquoise skies — Developers · the Netherlands: The business trip: client deck synced, video call joined from the taxi.
Developers · the Netherlands: The business trip: client deck synced, video call joined from the taxi.
man hiking in snow in mountains — Developers · the Netherlands: The welcome home: eSIM deleted in one tap, no contract to cancel.
Developers · the Netherlands: The welcome home: eSIM deleted in one tap, no contract to cancel.
eiffel tower at sunset — Developers · the Netherlands: Real journeys, real connectivity — this is what the product is for.
Developers · the Netherlands: Real journeys, real connectivity — this is what the product is for.
eiffel tower in paris skyline — Developers · the Netherlands: Night markets and late trains — connected the whole way through.
Developers · the Netherlands: Night markets and late trains — connected the whole way through.
woman walking on pathway while strolling luggage — Developers · the Netherlands: Currency exchange, skipped: the phone pays at the real rate.
Developers · the Netherlands: Currency exchange, skipped: the phone pays at the real rate.
A couple enjoying a sunny day with smartphones and wine glasses on a rooftop in Portugal. — Developers · the Netherlands: Platform to platform: tickets, timetables and taxis in one hand.
Developers · the Netherlands: Platform to platform: tickets, timetables and taxis in one hand.
eiffel tower in worm hole view — Developers · the Netherlands: From departure lounge to arrival hall, the data never drops.
Developers · the Netherlands: From departure lounge to arrival hall, the data never drops.
landscape view of greece during day time — Developers · the Netherlands: The red-eye recovery: hotel early-check-in arranged mid-flight.
Developers · the Netherlands: The red-eye recovery: hotel early-check-in arranged mid-flight.
teddy bear sitting atop luggage left in airport — Developers · the Netherlands: The docs ship with runnable examples, not pseudocode.
Developers · the Netherlands: The docs ship with runnable examples, not pseudocode.
delighted mother with daughter typing on laptop in airport — Developers · the Netherlands: The night bus: entertainment downloaded, messages queued, rest easy.
Developers · the Netherlands: The night bus: entertainment downloaded, messages queued, rest easy.
aerial view from airplane with blue wing — Developers · the Netherlands: Market mornings: look up the dish, translate the menu, pay by phone.
Developers · the Netherlands: Market mornings: look up the dish, translate the menu, pay by phone.
Man taking photo out of airplane window, capturing wing view with smartphone. — Developers · the Netherlands: Every endpoint returns the same shape — learn one, know them all.
Developers · the Netherlands: Every endpoint returns the same shape — learn one, know them all.
city skyline — Developers · the Netherlands: Migrate from Twilio in three steps — the toolkit does the heavy lifting.
Developers · the Netherlands: Migrate from Twilio in three steps — the toolkit does the heavy lifting.
Two adventurous backpackers using smartphones while waiting at a bustling train station. — Developers · the Netherlands: Lost in the medina, found by GPS: the blue dot never lies.
Developers · the Netherlands: Lost in the medina, found by GPS: the blue dot never lies.
Olivier Bergeron — Developers · the Netherlands: Island time, online time: ferries, beaches and full signal.
Developers · the Netherlands: Island time, online time: ferries, beaches and full signal.

Explainer

esimgomobile Developers…rst, down to the SIM: 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. 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

  • Turn off auto-play on social apps before you fly; it quietly eats roaming data.
  • Screenshot your hotel address and booking confirmations — you'll want them with no signal.
  • Save your eSIM QR code somewhere safe (email it to yourself) in case you switch phones mid-trip.
  • Download offline maps for your destination — they save data and work in dead zones.
  • Check that your phone is carrier-unlocked before you buy any eSIM — locked phones can't add one.
  • 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.

Visual guides

Every chart that matters for the Netherlands.

esimgomobile Developers…rst, down to the SIM — 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…rst, down to the SIM — data dashboard. Plan allowances, validity windows and a typical usage curve for esimgomobile Developers…rst, down to the SIM — hover for exact values.
Plan comparison matrixEvery plan for the Netherlands — data, validity, best fitPlans at a glanceFour prepaid plans cover every kind of trip to the Netherlands.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 the Netherlands; 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 planner
Compare before you commit — know the right plan weeks ahead.
esimgomobile network data3The family organizer
One tool, every traveler's needs covered.
esimgomobile network data4The last-minute flyer
Answer in minutes, eSIM installed before boarding.
esimgomobile network data
Use cases. Six traveler shapes, one tool — Developers · the Netherlands's use cases.
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.
Does hotspot work?
Yes — share your connection with laptop or tablet.
How fast is setup?
About two minutes: plan, QR scan, done.
Which phones work?
Any carrier-unlocked, eSIM-capable iPhone or Android.
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. Still curious? The Tele Agent answers anything else instantly.
Pro tipsFour habits of the always-connectedPro tipsSmall habits, big difference.1Download offline mapsThey save data and work in dead zones.2Keep home SIM for 2FABank codes still arrive while data runs on the eSIM.3Install before you flyAirport Wi-Fi is the worst place to set up connectivity.4Set an 80% alertA top-up should never surprise you mid-trip.
Pro tips. Veterans do all four without thinking.
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 · the Netherlands usage guide.
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.2Pick your planChoose data for your trip — checkout takes about two minutes.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.
How esimgomobile Developers…rst, down to the SIM 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.2Get the answerClear result with next steps — save it or act on it.3Enter your detailsTrip, data needs, destination. The tool does the math.4Open the toolNo account needed — it loads instantly in your browser.
Tool walkthrough. Four steps from landing on Developers · the Netherlands to having your answer.
Every plan includesNo tiers of basic dignity — these ship with all plansEvery plan includesThe baseline is generous on purpose.Keep your WhatsAppYour existing number keeps working on the data line.24/7 supportReal humans plus the Tele Agent, around the clock.6 languagesThe app speaks your language, wherever you're from.Hotspot includedShare with your laptop or tablet at no extra cost.5G where availableFastest local partner network, selected automatically.One-tap top-upMore data in seconds — no new QR code.
Included with every plan. Six things ship with every plan — the Developers · the Netherlands baseline, generous on purpose.
Network at a glanceCoverage facts for the NetherlandsNetwork at a glanceThe numbers that matter before you buy.195destinations liveesimgomobile network data5Gwhere available in the Netherlandsesimgomobile network data6app languagesesimgomobile network data2 mintypical install timeesimgomobile network dataPlus: local numbers where available, hotspot included, 24/7 support.Prepaid only — when the plan ends, it simply stops. No contracts.
Coverage facts. the Netherlands connects to the fastest available local partner network automatically.
esimgomobile Developers…rst, down to the SIM: capability profileWhat the tool is good at — illustrative profileCapability profileFive strengths, ranked by what users feel first.Mobile friendlyworks on the phone in your handAlways currentreflects live plans and coverageInstant resultsno waiting, no signupShares wellsend the answer to travel companionsPrivate 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.

Ready when the Netherlands is

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

See plans and pricing Talk to the Tele Agent