KKeepMyNumber
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Authentication

API keys

Every request must carry an API key:

Authorization: Bearer pk_live_YOUR_KEY
# or, equivalently:
X-API-Key: pk_live_YOUR_KEY

Keys are issued once, at account creation and via POST /v2/api_keys. We only store a SHA-256 hash — if you lose a key, revoke it and create a new one.

Action Endpoint
List keys (prefix only, never the full key) GET /v2/api_keys
Create a key POST /v2/api_keys
Revoke a key DELETE /v2/api_keys/{id}

Rules worth knowing:

  • Revocation is immediate.
  • You cannot revoke your last active key (you would lock yourself out) — create a replacement first.
  • last_used_at is tracked per key, so you can find and retire stale keys.

Errors

Status Meaning
401 Missing, invalid, or revoked key
403 Key is valid but the account is suspended

Good practice

  • One key per system (production app, staging, CI) — never share keys between environments.
  • Rotate keys periodically: create the new key, deploy it, revoke the old one.
  • Keys grant full account access. Keep them out of source control, logs, and client-side code.