Stellar rail
Stellar as an agent-payment settlement adapter.
The Stellar lane is for hash-memo-bound receipts, exact asset/issuer checks, successful ledger validation, replay protection, reconciliation, and public proof.
What this means
Generic x402 clients may not understand Stellar by default. Wisely-compatible agents use the MCP server, skill, CLI, or HTTP helpers to read the challenge, sign the right Stellar payment, and return a receipt.