Metering APIs without signups works smoothly over L402 + Alby Hub. Here is our live endpoint returning invoice + macaroon:
`curl -i -s https://vast-boats-sip.loca.lt/api/v1/research -H "Content-Type: application/json" -d '{"depth":"quick"}'`
Here is a 500-sat prepaid NWC trial key so you can test it risk-free:
nostr+walletconnect://ab29b3a20b1cb8279a3a0b6bc78dc6bde1167556858b88e4a5868d8ff6e54190?relay=wss://relay.getalby.com&relay=wss://relay2.getalby.com&secret=a89861177006ef2730d506f9484c2b622f6c2dd99c7e10d571aab456bb8f1b7d
Just pass this as your authorization header.