https://docs.ruma.dev/ruma_client_api/keys/upload_signatures/index.html
ruma_client_api::keys::upload_signatures - Rust
`POST /_matrix/client/*/keys/signatures/upload`
client api keysrumauploadsignaturesrust
https://www.virtualizor.com/docs/enduser/client-api-keys/
Client API Keys – Virtualizor
client api keysvirtualizor
https://metaduck.com/subscription-based-api-throttling-without-client-api-keys/
Subscription-Based API Throttling Without Client API Keys
How to implement tiered API throttling in AWS API Gateway using subscriptions, without requiring clients to send or manage API keys. Learn how to map...
subscription basedapithrottlingwithoutclient