Madar Names — your name instead of an address
Claim yourname.madar and link it to your Ethereum or Solana wallet, proved by your wallet's own signature. Search a name and see its price now; booking opens soon.
OpenMadar Services
Services built on MADAR
Practical tools you use from your own wallet. Your funds and files stay with you.
Madar Swap
Swap your crypto at the best rate, straight from your own wallet. We never hold your funds.
OpenMadar Stamp
Prove you had your work first: a permanent timestamp on the MADAR network before you publish. Your file never leaves your device.
OpenMadar Wallet · Coming soon
A non-custodial wallet for Bitcoin, Ethereum, Solana and more — your keys stay on your device.
Learn more →Free tools for teams building on Substrate and the Polkadot SDK.
SS58 Registry
The address-prefix registry for Substrate networks, continued after the original was archived: check a free prefix, convert addresses, and request a new one.
OpenMadar Ops — node monitoring
Watches your Substrate / Polkadot SDK nodes and alerts your phone the moment one goes down, stops producing blocks, falls behind on finality, loses peers or runs low on disk. Free, runs on your own server.
OpenMadar Ops Pro — hosted validator monitoring
We watch your Polkadot or Kusama validator from outside your servers and alert you the moment it stops earning, is chilled or slashed, or drops out of the active set. Stash address only. From $15/month, 7-day free trial.
OpenMadar Stamp API — timestamps for businesses
Stamp file fingerprints straight from your own systems: invoices, contracts, designs, builds. Permanent records anyone can verify, files never leave your servers. Free 100 stamps a month; paid plans from $9.
OpenMadar TxCheck — check before you sign
Reads a Substrate / Polkadot SDK transaction before it is signed, explains in plain words what it will really do, and warns about scam sites, scam addresses and hidden full-control permissions. Free API with signed verdicts.
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