A Review API is an application programming interface that lets software send, fetch, or manage reviews in a system. It typically supports actions such as creating, listing, updating, or deleting review records, and may expose fields for ratings, comments, moderation status, and timestamps.
What a Review API does
A Review API is a service interface for creating, reading, updating, and deleting review records. In practice, it gives applications a programmable way to manage user feedback, moderation state, ratings, timestamps, and related metadata without exposing the underlying storage directly.
Because the API is the control point for review data, it often becomes the place where product logic, content moderation, and trust decisions meet. That makes its contract important: a well-designed Review API should be explicit about who can write reviews, who can moderate them, and which fields are system-controlled rather than client-controlled.
Common operations and data model
Most Review APIs expose a small set of standard operations. Create and list are usually the most visible, while update and delete support moderation, correction, or removal workflows. Some implementations also support filtering by product, author, rating, status, or time window, which is useful for search, analytics, and moderation review queues.
The data model is usually simple but sensitive to business rules. Review text, star ratings, moderation flags, and timestamps can look harmless in isolation, yet they often drive ranking, recommendations, marketplace trust, and customer decision-making. A change to one field can therefore alter what users see or how the platform behaves.
Security and trust implications
Review APIs are attractive targets because they sit on the path between user input and public-facing content. Weak authentication or authorization can let an attacker post fake reviews, edit someone else’s content, or delete legitimate feedback. If the API also powers moderation or administrative actions, a broken object or function boundary can quickly become a broader trust issue.
Data integrity is the central security concern. An attacker who can tamper with review state may be able to inflate ratings, suppress negative feedback, poison search quality, or create the appearance of fraudulent social proof. Where reviews are displayed publicly, even small integrity failures can have outsized reputational impact.
For this reason, the most useful security references for this API class are the OWASP API Security Top 10 and the API Security Checklist, especially where they address broken authorisation, inventory, and lifecycle checks for API endpoints that handle content creation and moderation.
Design and governance considerations
A Review API should make ownership clear at the schema and policy level. Client applications should not be trusted to set moderation status, author identity, or approval metadata unless that behaviour is intentionally permitted and tightly controlled. System-generated fields should be server-side only, and destructive actions should be limited to the minimum set of roles or service paths that genuinely need them.
Versioning and inventory matter as much as the endpoint itself. Review APIs often expand over time, and older routes can remain reachable long after they stop being actively maintained. When that happens, forgotten endpoints or undocumented fields can become a security gap, especially if they still accept writes or expose internal review state.
For teams building or operating these interfaces, the practical question is not just whether the API works, but whether it preserves content integrity under real-world abuse, moderation pressure, and change over time.
Risk and Threat Considerations
Review APIs can be abused to manipulate trust signals at scale, especially when write access, moderation workflows, or object ownership checks are weak. The same interface that supports normal customer feedback can also be used for spam, rating fraud, review suppression, or account misuse if controls are inconsistent.
Failure mechanism: Broken authentication or object-level authorisation lets an attacker reach review records or moderation actions they should not control, while weak input handling can let them submit deceptive or malformed review content that the system accepts as legitimate.
Impact: The result can be corrupted ratings, misleading customer sentiment, moderation bypass, reputational damage, and loss of confidence in the platform’s published feedback.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP API Security Top 10 addresses the attack and risk surface, while NIST SP 800-53 Rev 5 sets the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP API Security Top 10 | API1 — Broken Object Level Authorization | Review APIs expose object-level create, read, update, and delete actions on review records. |
| API5 — Broken Function Level Authorization | Moderation and delete operations are distinct functions that need explicit role checks. | |
| API9 — Improper Inventory Management | Review APIs often accumulate forgotten or legacy endpoints that still accept writes. | |
| Recommendation — Enforce object ownership checks on every review record access and modification. Restrict moderation and destructive review actions to authorised roles only. Inventory all review endpoints and retire undocumented or unused versions promptly. | ||
| NIST SP 800-53 Rev 5 | AC-6 — Least Privilege | Review moderation and deletion should be limited to the minimum required access. |
| AU-2 — Event Logging | Review creation, moderation, and deletion need auditable event records. | |
| Recommendation — Limit review management privileges to the smallest necessary set of users and services. Log review lifecycle events so moderation and tampering can be investigated. | ||
Practitioner Guidance
Why practitioners should care: A Review API is not just a CRUD surface, it is a trust boundary for published content. Treat write, edit, delete, and moderation paths as materially different operations, even if they use the same endpoint family.
Governance implication: Define which fields are authoritative from the server side, which actors may change review state, and how review lifecycle events are logged and reviewed. That clarity prevents product teams from accidentally turning moderation metadata into client-controlled input.
Practitioner takeaway: If the API can change what users see, it needs stronger identity, authorisation, and audit discipline than a typical content-read endpoint.
Related resources from NHI Mgmt Group
- When should organisations review service accounts and API keys?
- What should organisations review before adopting agentic API access controls?
- What should teams do when agents can trigger internal API actions without review?
- Why do organisations need to review alert delivery paths when a platform moves away from a streaming API?
Deepen Your Knowledge
Free weekly newsletter
Subscribe to the NHI & AI Identity Journal
The latest on NHI and Agentic AI security – articles, research, breaches, news and events every week.
Bonus 33% off our NHI Course when you subscribe.
Reviewed and updated by the NHIMG editorial team on November 9, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org