Swappas

A reference table of 78 crypto swap venues, scored on six axes. No affiliate links, no paid placement.

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eigenwallet (formerly UnstoppableSwap)

No KYC Peer-to-peer no account tor no-js open source

7.5/10 total

Desktop software that performs true BTC to XMR atomic swaps using the COMIT adaptor-signature protocol, forked from comit-network/xmr-btc-swap and renamed from UnstoppableSwap in 2025. You run the app, pick a maker from a public list, and the swap either completes or refunds; no operator ever holds both sides. Swaps only run in one direction for takers, Bitcoin in and Monero out, so it cannot replace a general-purpose swapper. Development is unusually active, with release 4.13.2 in July 2026 and commits to eigenwallet/core the same month.

Scores

No-KYC 10
Fees 6
Privacy 9
Custody 10
Record 6
Coverage 1

Weights are published in the method and applied identically to every entry.

For

  • Genuinely atomic: the protocol refunds rather than trusting a counterparty, so there is no operator that can freeze or seize a swap in progress
  • No account, no email, no verification path exists in the software at all
  • All network traffic runs over a built-in Tor integration, and there is a CLI as well as a GUI
  • GPL-3.0 and verifiably alive: last push to eigenwallet/core was 2026-07-31, latest tagged release 4.13.2 on 2026-07-23
  • Signed release binaries for Linux, macOS and Windows

Against

  • One pair only, BTC and XMR, and takers can only go Bitcoin to Monero; selling XMR for BTC is not available to ordinary users
  • Liquidity is thin and comes from a small set of independent makers, so large swaps may not fill and quoted rates can sit well above market
  • You must install and run desktop software and wait out on-chain confirmations on both chains; a swap is minutes to hours, not seconds
  • Maker spread is not published anywhere, so the real cost is not measurable in advance from the project's own materials
  • Take downloads only from eigenwallet.org or the eigenwallet GitHub organisation; at least one lookalike domain markets the same name and is not linked from either

Agent access 6/10

There is a scriptable swap CLI and an Automated Swap Backend with an RPC interface, both documented, and no account or API key is needed. An agent still has to install the binary, run a local daemon and tolerate multi-block settlement, so this is not a hosted quote-and-go API.

Reported separately and not counted in the total. It measures what an autonomous agent can do unattended, not whether the service is safe to use.

Fees

0% protocol fee, maker sets the rate

There is no protocol or platform fee. Your entire cost is the spread the individual maker quotes plus Bitcoin and Monero network fees, and makers set their own rates, so the effective markup varies by counterparty and is usually worse than a custodial instant swapper's headline rate. Compare quotes across makers before committing.

Specification

Type
Peer-to-peer
KYC policy
No KYC
Custody model
atomic
Account required
no
Assets
2
Chains
2
Operating since
2022
Jurisdiction
none
Onion service
yes
Works without JS
yes
Open source
yes
Facts checked
2026-07-31

Links

https://eigenwallet.org

Plain links, no referral parameters. Verify the domain yourself; phishing clones of every service in this table exist.