Where can I buy Ontology?

Guarda's built-in exchange lets users buy ONT directly inside the non-custodial wallet with Visa, Mastercard, or Apple Pay, without leaving the app.

Can I buy Ontology in the US?

Guarda's buy feature is available to US-based users and accepts ONT purchases with a Visa or Mastercard debit or credit card, settling directly into the non-custodial wallet.

How many ONT coins are there?

Ontology has a fixed total supply of 1 billion ONT tokens, all of which entered circulation shortly after the network's 2018 launch, with no ongoing mining.

How do I store ONT after buying it?

ONT purchased through Guarda settles directly into the buyer's own non-custodial Guarda wallet address, where users hold their own private keys.

What is Ontology used for?

Ontology is primarily used for decentralized identity verification and data exchange between businesses, with ONT holders participating in network consensus and governance.

Buy Ontology (ONT)

Buy Ontology instantly with Guarda — a secure non-custodial wallet supporting over 1M+ assets. No account is required, and you can pay with Visa, Mastercard, or SEPA to receive ONT directly to your wallet. Enjoy fast, simple, and safe cryptocurrency purchases without intermediaries.

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Estimated Rate: 1 EUR ≈ ... ont

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Ontology Live Price & Market Data

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How to Buy Ontology

Download Guarda Wallet

Install on Desktop, Mobile, or use Web Wallet — your choice of platform

Choose Amount & Currency

Enter the amount in ONT or fiat (USD, EUR, GBP). See the estimated amount instantly

Enter Your ONT Address

Provide the recipient ONT wallet address (or use your Guarda wallet address)

Select Payment Method

Choose Visa/Mastercard or SEPA. Compare offers from Guardarian and Simplex

Confirm & Pay

Complete payment. ONT arrives in your wallet within 5–30 minutes

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Why Choose Us

Non-custodial

You hold your own keys and have full control over your funds

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Multi-currency support

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Transaction fees adjust based on network congestion

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Buy Ontology on the Go with Guarda App

Available on iOS and Android. Buy, store, exchange and stake crypto — all from your phone.

BlackANDwhite PLAYZ

Mar 24, 2026

Easy to sign up

Easy to sign up, great exchange features, simplest browser based wallet ever.

RobC

Aug 9, 2025

Excellent wallet & Exchange

Excellent wallet & Exchange. Well done. I’ve used a number of digital wallets for this coin or that coin, and multi chain. This is one of the better ones so far. Pretty intuitive while at the same time incorporating multi-chain swaps and exchanges (bridging) fairly transparently. Minimal fee’s to boot. A nice touch with the hierarchical structure of main net coin(s) and then subnet coin(s) below.

Joshua S

Nov 22, 2024

Guarda is easily my new favorite ❤️

I'm very particular when it comes to crypto wallets, exchanges, etc. so when I had to find a way of moving DOGE off of an old wallet and saw the wallet options for some reason Guarda stood out. I am very happy I decided to try Guarda, as I now have another crypto wallet/exchange service that I feel safe to use. I am very impressed with the UI, how seamless and intuitive everything is - I am excited to use Guarda more, thanks!

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Frequently Asked Questions

What is Ontology (ONT)?: Ontology is a public blockchain platform launched in 2018 by Onchain, focused on decentralized identity and data verification for enterprises. The network uses a dual-token model: ONT is the governance token used to participate in consensus, while ONG is generated over time to reward ONT holders and pay for network fees. Guarda users can buy, store, and exchange ONT directly in a non-custodial wallet.
Where can I buy Ontology?: Guarda's built-in exchange lets users buy ONT directly inside the non-custodial wallet with Visa, Mastercard, or Apple Pay, without leaving the app. Users enter the amount, choose a payment method, and the purchased ONT arrives directly at their Guarda wallet address. ONT also trades on centralized exchanges including Binance, KuCoin, and Gate for users who prefer a separate trading account.
Can I buy Ontology in the US?: Guarda's buy feature is available to US-based users and accepts ONT purchases with a Visa or Mastercard debit or credit card. The purchase settles inside the non-custodial wallet, so ONT arrives directly at the user's own Guarda address rather than a custodial account. Payment provider verification requirements can vary by US state and card issuer.
How many ONT coins are there?: Ontology has a fixed total supply of 1 billion ONT tokens, all of which entered circulation shortly after the network's 2018 launch. Unlike proof-of-work coins, no new ONT is mined; instead, holders earn the network's utility token, ONG, over time simply for holding ONT. This makes ONT's supply fixed rather than inflationary.
How do I store ONT after buying it?: ONT purchased through Guarda settles directly into the buyer's own Guarda wallet address, since Guarda is a non-custodial wallet where users hold their private keys rather than Guarda. From the wallet, users can send, receive, and track ONT alongside other supported assets like BTC, ETH, and USDT in one portfolio view. Guarda's built-in exchange also allows swapping ONT for other listed assets without moving funds to a separate exchange account.
What is Ontology used for?: Ontology is primarily used for decentralized identity verification and data exchange between businesses, letting organizations confirm credentials and share verified data without a central intermediary. ONT holders participate in network consensus and governance, while the ecosystem also supports smart contracts and cross-chain interoperability. Individual holders mainly use ONT for trading, staking-like ONG generation, and exposure to the identity and data-verification sector of crypto.