Crate mcp_usage_store 

Distributed durable-task attribution for UsageKit for MCP.

Backends store SHA-256 digests of tenant and task identifiers, never their plaintext values. Values contain only a fixed method category and the price resolved when the task was created, never a name, URI, or extension method string. Inserts are first-writer-wins and claims are atomic, so a completed task can be accounted for by at most one application instance.

Structs

PostgresTaskStore

PostgreSQL durable-task attribution with atomic, once-only claims.

RedisTaskStore

Redis or Valkey durable-task attribution with atomic, once-only claims.

Enums

StoreConfigError

Configuration or connection failure while constructing a store.