XMRadar
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Browser extension · Chrome and Firefox · early release

Monero on the pages you already use.

XMRadar shows who takes Monero on X and Nostr, lets you tip them from your own wallet, checks swap sites before you deposit, and copies posts to Nostr.

Download for Chrome Download for Firefox
Free and open source. Holds no keys and no funds.
Swap safety · receipts and letters

Check the swap before you send.

On a swap order page, XMRadar checks the exchange's signed receipt or letter of guarantee against the deposit address the page shows, keeps a copy for disputes, and shows the site's grade on xmr.club.

Download for Chrome Download for Firefox
Free and open source. Holds no keys and no funds.

What it does

01 · X and Nostr

Tip badges

An XMR badge on posts from people who published a Monero address. Click it to tip from your own wallet. Totals separate tips the recipient confirmed from ones that are only claimed.

ɱ 0.004 ✓+0.002 claimed
02 · NKIP-0001 · letters of guarantee

Swap guard

On an exchange's order page, XMRadar checks the signed NKIP-0001 receipt, or the operator's letter of guarantee (PGP or MistProof), against the addresses on the page and in what you copy. A verified copy is saved in your browser for disputes. The toolbar shows the site's xmr.club grade, with a warning for open incidents.

Exchange data from xmr.club, licensed CC BY 4.0.

Receipt verifiedexample.swap
Letter verifiedsigned with the operator's listed key
Address doesn't match the receipt
03 · kyc.rip GhostMail

Burner email

A throwaway address in one click for sign-ups. New mail shows up as a notification with the code already pulled out.

[email protected]42 min
04 · Nostr

Copy posts to Nostr

Right-click a post on X, Bluesky, Mastodon or any page, or hover it and press Alt+Shift+N. Text and images go to your relays, signed by your own Nostr signer.

AltShiftN

See it on X

Real screenshots from @XBToshi's profile, with XMRadar installed.

An X profile with an orange XMR badge next to the name
An XMR badge next to the name of anyone who published a Monero address and linked it to their X account.
A post whose action bar has a Monero Xap button showing ~0.0017
A Xap button on each of their posts, with the tips so far (~ means claimed by the tippers, not yet confirmed).
The tip popup with a QR code, the Monero address and an Open in wallet button
Click either one: the address, a QR code and Open in wallet. XMRadar never touches the funds.

What it never touches

XMRadar runs in your browser. It has no account and no server of its own. The code is open, so you can check every claim below.

KYC-rip/xmradarRead the source →
OPEN STANDARDS Built on Non-KYC Improvement Proposals Any wallet, exchange or client can implement them.
NKIP-0001Verifiable deposit receipts→ NKIP-0002Verifiable Monero tips on NostrDraft

Install XMRadar

Not in the Chrome or Firefox stores yet. Download the zip from GitHub Releases, unzip it, and load it from chrome://extensions (Developer mode → Load unpacked), or in Firefox 140+ from about:debugging.

Works with any NIP-07 signer, such as Alby or nos2x, and any Monero wallet that opens monero: links.

Download for Chrome Download for Firefox
Version 0.4.0.4 · release notes
VERIFIABLE BUILDS Every release is built by CI from a public commit The build number comes from the CI run. The same commit always produces the same zip, and each release is signed with a provenance record.
version0.4.0.4 commit4d44213 sha-256225b…d6fc xmradar-0.4.0.4-chrome.zip
gh attestation verify xmradar-0.4.0.4-chrome.zip -R KYC-rip/xmradar All releases and checksums →