micro--go-micro
Asim Aslam
a1a57799c3
* feat(mcp): advertise x402 payment requirements in the tool catalog /mcp/tools now includes each priced tool's payment requirements (amount, network, asset, payTo) when payments are enabled, so an agent can see the cost before calling and choose by price — a shoppable catalog, the foundation for a tool marketplace. Free tools carry no payment block; the shared Tool struct is copied when pricing so it isn't mutated. Tests cover priced/free tools and payments-disabled. Documented in the payments guide. * feat(x402): consumer client with a spend budget (pay-and-retry) Add x402.Client, the consumer counterpart to Middleware: it settles 402 challenges automatically via a pluggable Payer, up to a spend Budget. A call that would exceed the budget is refused before any payment is made, and spend accumulates across calls — the spend cap that keeps an autonomous, paying caller in bounds. Tests cover pay-within-budget, refuse-over-budget, budget accumulation, and free endpoints, end to end against the server Middleware with a mock facilitator and payer. Guide documents the consumer side; agent-level AgentMaxSpend is the next step. * chore: gofmt gateway/mcp/benchmark_test.go (trailing newline) --------- Co-authored-by: Claude <noreply@anthropic.com>