Sportsbook API Security Checklist for Integrators

October 15, 2026
by WS Gaming
SPORTSBOOK API · SECURITY CHECKLIST

Sportsbook API Security Checklist For Integrators.

Sportsbook APIs handle player identity, financial transactions, and real-time betting state — three attack surfaces that make them prime targets for credential stuffing, replay attacks, and token exfiltration. The ten controls below are what distinguish secure integrations from the ones that end up in a breach disclosure. Covers both the controls the WSGaming sportsbook API provides and the ones operators must implement on their side to make the integration genuinely secure end to end.

The Frame

Security is shared.

Sportsbook API security is a shared responsibility between the platform vendor and the operator integrating against it. The platform handles infrastructure security — TLS termination, PCI DSS compliance, SOC monitoring, encryption at rest, DDoS mitigation. The operator handles everything downstream of the API — how credentials are stored, how tokens are rotated, how webhooks are verified, how logs are protected from exfiltration. A failure on either side becomes a breach on both sides.

The ten controls below cover the operator-side responsibilities most commonly missed. Half are configuration decisions in your API client, half are architectural decisions about how your integration layer is deployed and monitored. Every control has a specific implementation pattern and a specific failure mode if skipped. The sports betting software reference SDKs implement most of these by default; this checklist is what to verify when integrating or auditing an existing integration.

Treat this as a go-live checklist, not optional hardening. Each control takes hours to days to implement correctly and prevents incident classes that cost months of recovery when they land.

Ten Production Controls

What operator-side security looks like.

Each control addresses a specific attack class. None are optional for production integrations; the full checklist is the baseline every operator should hit before go-live.

01

OAuth 2.0 or Signed Requests

API key in query string is a 2010-era anti-pattern. Use OAuth 2.0 bearer tokens or HMAC-SHA256 request signatures. Keys in URLs end up in logs, CDN caches, Referer headers, and screenshots.

AUTH · CRITICAL
02

Short-Lived Access Tokens

Access tokens expire in 15-60 minutes. Refresh tokens rotate on every use. Long-lived tokens stolen from logs or compromised machines give attackers persistent access until manually revoked.

TOKEN LIFECYCLE
03

Secret Rotation

Rotate API secrets every 90 days minimum, immediately after any suspected compromise. Automated rotation beats manual — build it into the integration from day one. Document the rotation procedure.

OPERATIONAL
04

Credential Vault (Not .env)

Store API credentials in a secrets manager — HashiCorp Vault, AWS Secrets Manager, GCP Secret Manager. Not in .env files committed to git, not in environment variables set at deploy time, not in config files on disk.

INFRASTRUCTURE
05

TLS 1.3 Only

Reject TLS 1.0, 1.1, 1.2 on your side. Pin certificates where feasible. Platform supports TLS 1.3; your client should refuse to downgrade to older protocols that have known vulnerabilities.

TRANSPORT · CRITICAL
06

Webhook Signature Verification

Verify HMAC signature on every webhook before processing. Reject unsigned or invalid signatures with 401. Unsigned webhooks can be spoofed by attackers who find your webhook URL. See the WSGaming API reference for signing spec.

WEBHOOKS · CRITICAL
07

Request IP Allowlisting

If your integration runs from fixed server IPs, allowlist them in the platform admin. Rejects any request from unexpected IPs even with valid credentials. Dramatically reduces exposure from stolen credentials.

NETWORK · DEFENSE DEPTH
08

Client-Side Rate Limiting

Build your own rate limiter even if the platform has one. Protects you from runaway bugs that hammer the API. Soft-fails locally before the platform hard-fails you with 429. Prevents accidental DOS of your own account.

CLIENT CONTROL
09

Audit Logging

Log every API call with request metadata (not full bodies), response status, correlation ID. Store logs centrally in a tamper-evident store. Audit logs are the first thing you need after an incident — build them before you need them.

OBSERVABILITY
10

Separation of Environments

Separate credentials for sandbox and production. No credential sharing across environments. Developers only have sandbox access by default. Promotes credential discipline and limits blast radius of a developer-machine compromise.

OPERATIONAL
Frequently Asked

Common security questions.

Does WSGaming require all these controls? +

Required: OAuth/signed requests, TLS 1.3, signature verification on webhooks. Strongly recommended: all others. Platform-side security is PCI DSS Level 1 certified; operator-side controls complete the end-to-end security posture.

What’s the token refresh pattern? +

Access token expires every 60 minutes. Refresh token used to obtain new access token (and new refresh token — rotation). If refresh token invalid, re-authenticate. Standard OAuth 2.0 flow; reference SDK implements this automatically.

How do I store the webhook signing secret? +

Secrets manager (Vault, AWS Secrets Manager). Not in code, not in config files. Fetch at process start, cache in memory, rotate on schedule. Signing secret compromise means attackers can forge webhooks, so protect it like a database password.

What’s reasonable rate limiting? +

Platform rate limits scale with operator tier — thousands of requests per minute typical. Your client-side limit should sit 20-30% below platform limit as safety margin. Protects against bugs that would otherwise exhaust your allocation.

Do I need SIEM for API logs? +

At serious scale, yes. Smaller operators can use centralized logging (Loki, CloudWatch, Datadog) with alerting on anomalies — repeated 401s, unusual IP patterns, rate limit violations. SIEM becomes necessary once you have multiple integration points and compliance requirements.

What’s the breach notification protocol? +

If you suspect credential compromise, revoke immediately via admin panel and contact our team. Platform helps investigate scope, rotates signing keys, and documents the incident. Prompt notification minimizes blast radius.

How often should I review the integration security? +

Quarterly minimum. Full checklist walkthrough, log audit, credential rotation verification, dependency scan. Annual penetration test of the integration layer by third-party is standard practice at serious scale.

Where do I get the security pack? +

Under NDA via our team. Includes PCI DSS attestation, signing spec, credential management guide, incident response playbook. Standard operator due-diligence documentation.

Lock down integration security.

Request the WSGaming security pack. Signing spec, credential patterns, audit log recommendations — everything needed to pass the ten-control checklist before go-live.

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