Anvil Wallet

A fork of Yours Wallet with two targeted hardening upgrades. Non-custodial BSV / 1Sat Ordinals / MNEE wallet. BRC-100 compatible.

What's the same as upstream Yours Wallet

All cryptography, key management, seed format, BIP32 derivation paths, BRC-100 provider surface (window.yours.*), 1Sat Ordinals support, MNEE integration, multi-account, UI screens. See LICENSE.md — MIT, preserved from upstream; copyright for the base wallet remains with Daniel Wagner and David Case.

The Two Upgrades

1. Security — axios removed

All HTTP calls use the browser's native fetch API. No third-party HTTP library in the wallet's dependency tree. Mitigates the 2024 axios supply-chain attack vector by removing the entire attack surface.

This was also merged upstream via yours-org PR #300, so Anvil Wallet inherits this rather than being the originator.

2. Multi-source chain data

Yours Wallet (and forks of it) historically depended on a single pair of indexers (ordinals.1sat.app + ordinals.gorillapool.io). When those degrade, the wallet hangs. Anvil Wallet chains through additional sources with fail-closed ordinal safety:

• Fund UTXO lookup: spv-store primary → WhatsOnChain fallback, with a local 1Sat inscription-envelope filter so the fallback path never spends an ordinal as fungible BSV
• Broadcast: Anvil-Mesh → spv-store → WhatsOnChain
• Mesh health pre-flight: skips Anvil-Mesh quickly when it self-reports its broadcast upstream as down

All three paths are opt-out by default — if you don't configure Anvil-Mesh, they fall through silently to spv-store, identical to upstream behavior.

Minor additions

• Theme: renamed from "Yours" to "Anvil" in the manifest + theme file
• GetSignaturesRequest timeout: the sign popup no longer deadlocks when the 1Sat indexer is degraded (6-second timeout + minimal preview fallback)
• sendMNEEWithData provider extension: lets a connected dApp request a user-half-signed MNEE transfer with optional OP_RETURN data, useful for AVOS-style oracle-attested swaps. Additive; existing sendMNEE flow unchanged.

Install

Developer / unpacked

git clone https://github.com/BSVanon/Anvil-Wallet.git
cd Anvil-Wallet
npm install --legacy-peer-deps
npm run build

Load unpacked extension from ./build/ in chrome://extensions (Developer mode on).

Chrome Web Store

Coming soon.

Upstream sync

To pull updates from yours-org/yours-wallet when upstream ships:

git fetch upstream
git rebase upstream/main    # replays the 7 Anvil patches on top of new upstream

Or use the "Sync fork" button in the GitHub UI.

License

MIT. Copyright for the base wallet remains with Daniel Wagner and David Case. Anvil-specific additions are dedicated to the same MIT terms; see commit history for authorship.

Credits

Forked from yours-org/yours-wallet at commit 75b18b1.