API credits
—price not set
Credits to read profiles and attestations through the planned developer API instead of querying the contract yourself.
- Planned, not live
- Direct contract reads stay free
- No rate or price decided
$VYVON / planned utility
One token.Zero promises.
$VYVON is the planned utility token of Vyvon on Robinhood Chain. Profiles, badges and the reputation view work without it. The uses below are plans rather than features, and holding the token earns nothing: no yield, no share, no reward.
NetworkRobinhood Chain · id 4663
Total supply—
One badge costs its issuer now—waiting for the gas price
ETH / USD · Chainlink…
Planned uses
The record stays free.
The token is for extras.
Reading and writing reputation never needs $VYVON: a badge costs gas and nothing else. If the token gets a role, it will be in optional services around the record. Every card on this page is marked planned until it ships.
Premium profile
—not decided
Extra presentation for a profile, such as pinned badges and a longer story. It would never change what the record says.
- Planned, not live
- Never affects reputation
- Badges stay free to read
Community services
—under discussion
Tools for groups that issue badges at scale: issuer pages, mission tooling and exports, paid in the token if adopted.
- Planned, not live
- No allocation or reward
- Subject to community input
Token contract (at launch) · $VYVON
Contract address coming soon
Only copy the address from this page or the official X account @vyvon. Check it on the explorer before you send anything, and ignore addresses that reach you in private messages.
Questions
Before you hold it.
What is Vyvon?
Vyvon is an onchain reputation layer on Robinhood Chain. You link a public profile to your wallet, and other addresses can issue you badges (attestations) for work they saw: a shipped project, a review, a session you hosted. Every badge names its issuer, so readers can weigh it by who gave it.
How does Vyvon work?
A profile is a short self-description you sign with your wallet; it costs nothing. A badge is a record in the VyvonAttestationRoll contract: issuer, subject, badge id, a keccak-256 fingerprint of the evidence and an optional expiry. The issuer can revoke it, the subject can decline it, and every page reads the record from the chain.
What does a badge prove, and what does it not?
It proves that a specific address made a specific statement about another address at a specific block. It does not prove that either wallet belongs to one real person, that the issuer is trustworthy, or that the work was good. Wallet activity is not proof of identity and a transaction is not proof of quality; credible reputation needs issuers you can check.
Can someone send spam badges to my wallet?
Anyone can attest to any address, so yes, it is possible. You can decline any attestation about you with one transaction: it stays in the public history but stops counting on your profile. Readers can also keep a list of issuers they trust and filter by it.
Is my profile stored on chain?
No. Your profile text is signed by your wallet and stored by this site (when the site owner has configured storage), so it can be edited or removed. Badges are what lives on chain. A profile is self-description and never counts as reputation by itself.
Which network is Vyvon on?
Robinhood Chain mainnet, chain id 4663, with ETH for gas. Connecting a wallet adds the network for you if it is missing. Phantom cannot add Robinhood Chain, so the wallet dialog lists it as not supported.
How do I buy $VYVON?
$VYVON has not launched yet. The contract address will be published on this site and on the official X account at launch. Until then, anything sold as $VYVON is not ours.
What is $VYVON for?
The planned uses are credits for the developer API, premium profile features and community services. None of them is live in this build, nothing is promised, and holding $VYVON pays no reward, yield or share of anything. Badges and profiles work without the token.
Does the site charge a fee or hold my keys?
No fee and no keys. Signing a profile is free. Issuing, revoking or declining a badge is a transaction you approve in your own wallet, and the only cost is Robinhood Chain gas. The contract has no owner, no admin, no fee and no upgrade path.
What are the risks?
The contract is small, open and fully tested, but it has not been independently reviewed yet. Records are public forever, including addresses and timestamps, so never put private information in a note you hash. A badge is only as credible as its issuer, and a profile can say anything about itself.
Is there an API for other apps?
A developer API for reading profiles and attestations is planned and not live. Today any app can read the VyvonAttestationRoll contract directly; its functions and events are listed in the docs.