Get an HSP API key

This key authorizes your team to write to the Coordinator — register a mandate, request observation, submit a receipt. It is not a wallet and holds no funds; reading a payment or the Explorer needs no key. Lost it? Just generate another (rate-limited per IP).

Use it as a Bearer token on write requests, or set it as HSP_API_KEY for the SDK:

# SDK / env
HSP_API_KEY=hsp_xxxxxxxx
# raw HTTP
curl -H "Authorization: Bearer hsp_xxxxxxxx" … /payments

One key per team is enough. It identifies your team for write rate-limiting — don’t share it.