Private VPN · Amsterdam
Private access.
Less friction.
Fiadyn gives each of your devices its own secure VPN access and keeps setup simple: start in Telegram, add a device, copy your Happ subscription, connect.
Free trial: 3 days · 10 GB shared traffic · up to 2 devices. No card required.
No card for trial
Telegram Stars
Per-device access
VLESS + REALITY
ProtectedAmsterdam · NL
Getting started
From Telegram to a working VPN in three steps.
Fiadyn keeps identity, entitlement and devices on the server. Your device receives its own Happ subscription rather than a shared permanent credential.
Start in Telegram
Open the Fiadyn bot and activate your one-time free trial or choose a Telegram Stars plan.
Add your device
Fiadyn creates a device-bound credential and a durable subscription URL. Device limits are enforced by your active plan.
Import into Happ
Copy the subscription URL into Happ and connect. If you rotate or revoke the device, the previous credential stops working.
Simple plans
Pay in Telegram. Use it anywhere.
Choose the device limit you actually need. Paid plans renew every 30 days through Telegram Stars; the +100 GB add-on is one-time.
Customer trial and paid plans use explicit traffic allowances.
Loading plans…
Pay with Bitcoin or Lightning
Crypto checkout is a one-time 30-day purchase through BTCPay. No automatic crypto renewal and no email is required. Bitcoin transactions can be public on-chain, so this payment method is privacy-preserving but is not described as anonymous.
Pay securely by card with Stripe
The exact card price and billing currency are shown by Stripe before you confirm payment. VPN access is activated only after the server verifies Stripe’s signed payment events; a browser account is created only after signed Stripe payment verification.
Privacy & control
Clear boundaries. No magic words.
Fiadyn does not promise “perfect anonymity”. It is designed to minimize unnecessary access secrets and keep control explicit.
VLESS + REALITY protects traffic between your device and the VPN endpoint and resists simple protocol fingerprinting.
Each enrolled device gets its own credential generation. Revoke or rotate one device without replacing every other device.
Session, recovery and Happ capabilities are stored as keyed hashes or sealed browser state where designed. Raw Happ device IDs are not stored.
Plans, device limits, traffic allowance and access state are enforced by the control plane rather than trusted to the browser.
Traffic is protected between your device and the VPN endpoint. Ordinary HTTPS is still responsible for end-to-end encryption between your browser or app and the sites you use. Availability of any specific website is not guaranteed. Availability of any specific destination is not guaranteed. Use the service in accordance with applicable law and the destination service’s terms.
Your access
Manage Fiadyn.
Public website
Open Fiadyn from the Telegram bot
Telegram is the active signup and payment path. From there you can start the free trial, buy a Stars plan, add devices and get your Happ subscription.
Status—
Billing—
Traffic—
Plans
Card subscription
Open Stripe’s secure billing portal to manage payment details or cancel future renewal. A cancellation does not grant or revoke VPN access from the redirect itself; the VPN updates only after it receives Stripe’s signed subscription event.
Devices
Each active device has its own VPN credential. Rotate or revoke only when you mean to invalidate that device’s current Happ access.
Happ subscription
Connect this device in Happ
Treat this URL like a password. It is bound to the selected device. Normal plan renewal keeps the same subscription URL; rotating or revoking the device invalidates its previous credential.
Copy the URL
Use the button above. Do not send this link to another person or reuse it as a shared household credential.
Import in Happ
Open Happ and use its normal add/import subscription flow, then paste the copied Fiadyn URL. Fiadyn does not assume an unsupported Happ deep-link or automatic import API.
Refresh, then connect
Let Happ load the subscription and connect to Amsterdam. Normal renewal keeps the URL durable. After a credential rotation, generate a fresh Happ URL for that device.
Connection or account not working?
Recovery guide
Session expired: reopen Fiadyn from the Telegram bot or use Refresh account. Fiadyn never asks you to paste a session token.
No active access: start the free trial if still eligible or activate a Telegram Stars plan.
Quota exhausted: the VPN remains blocked until the active allowance changes; eligible paid accounts can use the +100 GB add-on.
Device limit reached: revoke an old device before enrolling another one, or use a plan with a larger device limit.
Rotated or revoked device: the previous Happ credential is intentionally invalid. For an active rotated device, request a fresh Happ URL before reconnecting.
Another VPN is active: disconnect Cloudflare WARP or any other VPN/TUN app before connecting Fiadyn. Competing system tunnels can fight over routes or DNS and make Happ appear connected while internet access fails.
Account & access settings
Close account
Closing your account immediately revokes VPN sessions, devices and remaining VPN access. It does not cancel future billing with your payment provider. Disable automatic renewal first for Telegram or card recurring subscriptions. BTCPay crypto purchases in this release do not renew automatically.
This cannot be undone from this account. Remaining paid VPN access is forfeited when closure succeeds.
Questions
Before you connect.
Do I need a bank card?
No. The free trial does not require a card, and the active paid path uses Telegram Stars.
Why does Fiadyn use Happ?
Fiadyn currently manages your subscription, device credentials, limits and access while Happ acts as the VPN client that imports the generated subscription.
Does Fiadyn make me anonymous?
No VPN should promise perfect anonymity. Fiadyn protects the connection to the VPN endpoint and is designed to minimize unnecessary credential exposure.
Can I revoke one device?
Yes. Device credentials are separate, so a revoked or rotated device can lose access without replacing every other device.
Why did my old Happ link stop working?
A rotated or revoked device intentionally loses its previous credential. Normal plan renewal does not require replacing the durable subscription URL, but a credential rotation does.
What happens when I use all my traffic?
The data plane fails closed when the active quota is exhausted. Eligible paid accounts can add 100 GB through Telegram Stars; otherwise access resumes only when authoritative allowance becomes available again.