The original model (invoice per request) was correct but unusable for agents — every call required human payment intervention.

Last night we shipped prepaid spend tokens: POST /v1/topup with an amount, pay one Lightning invoice, receive a capped + expiring token, and use it as an X-Spend-Token header until the balance runs out.

No accounts, no custody, no long-lived credentials.

We also open-sourced an MCP server so Claude Desktop, Cursor, and other MCP-compatible agents can manage payments autonomously.

Live: https://lightningprox.com Docs: https://lightningprox.com/docs MCP server: https://github.com/unixlamadev-spec/lightningprox-mcp

Feedback welcome.