WHEN API SECURITY REVIEWS MAKE SENSE
Common API & Service Layer Warning Signs A focused API review pays off fast when any of these start to show up
As your platform adds more endpoints, gateways and integrations, it gets harder to see where real attack paths begin. An API security review pulls those moving parts into one picture, so you can spot weak links early—before a new mobile app, partner launch or incident forces a rushed response.
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New mobile / partner API going live in the next 3–6 months -
Public docs exist, but no clear abuse-case threat model
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Gateway rules grew “organically” and no one owns them now
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Multiple services sharing the same secrets or roles
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Incidents, odd spikes, or unexplained 5xx in key flows
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Third-party devs or vendors building against your APIs
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AppSec reviews stuck on old web-app checklists, not APIs
What We Review
Across Endpoints, Traffic, Code & Config From public APIs to service-to-service calls, we follow real attack paths
API Surface & Flows
- Login, account, checkout, webhooks, admin APIs.
- Path, method and data maps for critical endpoints.
Gateways & Edge
- API gateways, WAFs, rate-limits, throttling and quotas.
- Auth, mTLS, JWT handling and session lifetimes.
Services & Data Access
- Service-to-service auth and internal APIs.
- How services touch PII, card data and critical balances.
Config, Secrets & Monitoring
- Secrets, tokens, keys and config patterns.
- Logging, alerts and dashboards for API abuse signals.
HOW AN API SECURITY REVIEW WORKS
From Endpoint Inventory To Hardened Patterns Evidence in four focused steps—built around how your team ships
01 Discovery & Inventory
Product goals, flows, docs, runbooks, and API specs (OpenAPI/Postman).
02 Threat Mapping
Abuse-cases for auth, sessions, rate-limits and data access, ranked by impact.
03 Control Design
Concrete patterns for gateway rules, auth, tokens, timeouts and secrets.
04 Roadmap & Evidence
Prioritised backlog plus API-specific security docs and diagrams.
What You Get
A Reusable API Security Blueprint One pack your engineers, partners and auditors can all share
Every review ships with
- API and service inventory with call graphs your team can reuse.
- Threat model with risk-ranked issues and clear owners.
- Recommended patterns for gateway rules, auth, secrets & logging.
- PCI / SOC 2 mapping for API-related controls and monitoring.
Your Internal Source of Truth
Most clients turn this into their API security “source of truth” for:
- Onboarding new engineers and external developers.
- Partner / vendor due-diligence and security questionnaires.
- Future redesigns of gateways, services and auth flows.
Who This Is For
Where An API Security Review Helps Most Built for teams exposing fintech APIs to users, partners and vendors
Founders & CxOs
Are our APIs safe enough to power new products and partnerships?
Heads of Engineering & Product
How do we lock down APIs without blocking feature delivery?
Security & Compliance Leads