Authentication middleware for XRPC servers. Accepts a user-supplied verification function -- no direct crypto dependency.

XRPC middleware for error formatting, rate limiting, and request validation.

Configuration for per-endpoint rate limiting.

In-memory sliding window rate limiter. Tracks requests per key (typically client IP or DID) within a configurable window.

A registered XRPC endpoint.

AT Protocol standard error response body.

The HTTP method an XRPC endpoint expects.

XRPC server builder and configuration.

Configuration for the XRPC server.