x-app-api-key. Authenticate with x-app-id and Authorization: Bearer. The stored secret is never returned.
jq to JSON-encode the PEM key, preserving its line breaks. Keep the key
out of source control and logs.
Full shapes on Upsert a venue API key and Get venue key connection status.
List stored summaries with List venue keys (client.listVenueKeys()). Remove one with Delete a venue key (client.deleteVenueKey(Venue.kalshi)).