Exolix
*This service has some KYC-related lines in their ToS. Please read below.
Launched in 2018, Exolix is an anonymous crypto exchange service with fixed rates which is free of registration and any limits. No personal data of any kind is required.
Quick Info
Verified
Bitcoin is accepted
Monero is accepted
You can't buy with FIAT
You can swap coins
No account needed
The wallet is not custodial
The source code is private
JavaScript needed
No Tor service available
The service has an API available
Android and/or iOS app available
Refunds may require KYC.
KYC Level: 2

Exolix may request KYC. Although KYC is not mandatory to use the service, Exolix reserves the right to require KYC for a certain user at a certain moment and may block funds. May be that a transaction is detected as suspicious or any other reason.

In this case, check if refunds without KYC are available.

Comments
Exolix is not recommended for large exchanges.
Some users reported block of funds by Exolix. Read this reddit post.
KYC-Related Terms of Service

Regardless the side of the transaction’s error, we never ask a client to go through the KYC process.

However, this rule applies only to exchange errors and does not apply to cases when the funds sent by the client to the deposit are recognized by the security system as suspicious.

If the funds that came to the deposit under your transaction were recognized by the system as suspicious, we may ask you for information to verify the source of the funds. If you refuse to provide such information, we are not responsible for ensuring the refund or completion of the exchange for this transaction.