API Key Rotation Best Practices

API key rotation replaces a live credential with a new one while minimizing downtime — create the replacement, deploy it everywhere the old key is referenced, verify traffic on the new key, then revoke the old key. IdenticAPI supports this workflow explicitly: keys are shown only once at creation, revoked keys stop working immediately, and you should create a new key before revoking when you need zero-downtime rotation.

Operational guide: API Keys documentation. Storage and exposure prevention: Protect API Keys in SaaS. Authentication format: Authentication docs.

Why rotation matters

Long-lived keys accumulate risk:

• Former employees retain copies in local .env files
• Keys leak through logs, tickets, AI chat paste, or accidental commits
• Scope creep — one key reused across services makes partial revocation impossible
• Undetected compromise — attackers use valid keys quietly

Rotation limits blast radius and exposure window. It is not a substitute for server-side-only storage or secrets scanning — combine all controls.

IdenticAPI does not publish mandatory calendar rotation intervals. Rotate on lifecycle events, suspected exposure, and policy — not invented compliance timers.

IdenticAPI key lifecycle

Key format

idapi_test_...  (development)
idapi_live_...  (production)

Transmit via:

Authorization: Bearer YOUR_API_KEY

Creation

From API Keys docs:

1. Dashboard → API Keys
2. Click "Create API Key"
3. Name the key (e.g., Production API, CI Staging, Worker Moderation)
4. Copy the full key immediately — shown only once

IdenticAPI stores a secure hash; the dashboard shows a safe prefix for identification.

Revocation

Revoked keys stop working immediately. Plan overlap when rotating production services — create the new key before revoking the old one.

Standard zero-downtime rotation procedure

1. Create new_key in dashboard (same environment: test or live)
2. Add new_key to secrets manager (keep old_key active)
3. Deploy all services to read new_key (feature flag or env var swap)
4. Verify metrics: 2xx responses, no auth error spike
5. Revoke old_key in dashboard
6. Remove old_key from secrets manager
7. Document rotation in change log / ticket

Dual-key acceptance window

During step 3–4, some teams temporarily accept either key at the gateway for independent service deploy order:

• Service A picks up new_key Monday
• Service B still sends old_key until Tuesday
• Gateway accepts both until B deploys — then revoke old_key

IdenticAPI validates one key per request — dual acceptance must happen in your proxy or sequential deploy discipline, not by issuing two IdenticAPI keys to one client without coordination.

Prefer sequential deploy + single active key when traffic is small enough for brief overlap testing in staging first.

Rotation triggers

Do not rotate blindly on a calendar without triggers — focus effort on exposure events and key hygiene.

Environment separation

Rotate test and live keys independently:

• Staging leak of idapi_test_... should not force live rotation unless the same secret was mistakenly shared
• CI should use dedicated test keys with minimal quota
• Never copy production keys into developer laptops

Automation considerations

Infrastructure-as-code

Store key references (secrets manager ARNs), not literal values, in Terraform/Pulumi. Rotation updates the secret value; apps read latest on restart or via sidecar refresh.

Kubernetes

Use External Secrets Operator or cloud provider secret sync. Rolling restart Deployments after secret update.

CI pipelines

GitHub Actions / GitLab CI: update repository secret, re-run deploy. Avoid printing env dumps in failed steps.

Configuration reload

Long-running workers may cache env at boot — document whether rotation requires process restart or supports hot reload.

RapidAPI legacy keys

Products such as IBAN Validator, Credit Card Validator, and URL Inspector use RapidAPI X-RapidAPI-Key headers. Rotation follows RapidAPI subscription key regeneration — same create → deploy → revoke pattern on their dashboard. Keep RapidAPI keys separate from IdenticAPI Bearer keys in documentation and secret names (RAPIDAPI_KEY vs IDENTICAPI_API_KEY).

Compromised key response playbook

1. Revoke suspected key immediately if active abuse observed
2. Create new key (if revoke was emergency without replacement ready, create before extended outage)
3. Deploy new key to all consumers
4. Review usage logs for anomalous IP, volume, or endpoint patterns since exposure estimate
5. Scan git history and ticket systems for the leaked value
6. Enable temporary rate limit alerts if dashboard supports
7. Post-mortem — root cause (client leak, log exposure, LLM paste)

Pair with API Security Checklist incident section.

Testing rotation in staging

Before first production rotation:

• Staging services read key from secrets manager reference
• Deploy script updates secret and rolls pods
• Synthetic call to POST /api/v1/security/output-safety (or your used endpoint) succeeds
• Revoked test key returns 401 — verify monitoring alert fires
• Rollback procedure documented (re-create key if botched revoke)

Use idapi_test_ keys only in non-production.

Anti-patterns

Naming and inventory

Maintain a key inventory table (internal doc):

Review quarterly — revoke keys for decommissioned services.

Relationship to user session rotation

User JWT rotation and API key rotation are separate:

• User sessions expire quickly; refresh tokens rotate on login
• API keys are long-lived automation credentials — manual/process rotation

Do not conflate "we rotate user sessions" with "our IdenticAPI integration is safe without key rotation on leak."

Documentation links for engineers

Summary

Rotate IdenticAPI keys by creating a named replacement, deploying it across all consumers, verifying successful auth, then revoking the old key. Prioritize rotation on suspected exposure and lifecycle events — use API Keys management as the control plane, and never rely on obscurity or client-side hiding in place of revocation.