AI API Contract Risk Analyzer

AI Requirement Analysis

Paste an OpenAPI spec (or part of it) and get a prioritised risk report with concrete fixes, from Mutqan AI.

Privacy: Requires a free Mutqan account. Your input is sent to the Mutqan AI service to generate the result; prompts and results are not stored — only your account's usage counts for the daily allowance. How the AI tools work

What is API contract testing?

An API contract is the agreed description of an interface — its endpoints, parameters, request and response schemas and status codes — usually written as an OpenAPI document. Contract testing compares what a service actually returns with that description, so a renamed field or a changed type is caught by the producer or the consumer before it breaks the other side.

Read the guide: What is API Testing? How to Test a REST API

How to use AI API Contract Risk Analyzer

  1. Paste the OpenAPI or Swagger spec — or the part you want reviewed — or a written description of the endpoints.
  2. Optionally add context: who consumes the API, the authentication model and your versioning policy.
  3. Pick the output language and press Analyze.
  4. Fix the Critical and High risks first — each names the exact location and a concrete change — then download the report as CSV, Markdown or JSON.

AI API Contract Risk Analyzer features

  • Reviews naming, versioning, error responses, authentication, authorisation, pagination, validation, breaking changes, idempotency, rate limiting, data exposure and documentation
  • Severity, exact location (path + method or schema) and concrete fix per risk
  • Design quality score and strengths
  • Markdown, CSV and JSON export

AI API Contract Risk Analyzer example

Contract review

Input:

openapi 3.0 with GET/DELETE /lookups/{lookup}/values, no securitySchemes

Output:

RISK-1 authentication (Critical, global): no securitySchemes → add bearer JWT scheme
RISK-2 pagination (High, GET …/values): unbounded list → add page/pageSize

Frequently asked questions about AI API Contract Risk Analyzer

Is this a replacement for the OpenAPI Validator?

No. The validator checks structural correctness deterministically; this tool reviews design quality and risk. Run both.

How are severities assigned?

Critical is a security or data-integrity flaw, High is something that will break clients or block testing, Medium is a quality or consistency issue, and Low is polish.

Can it review a plain-text endpoint description?

Yes. Paste an OpenAPI or Swagger document when you have one; a written description of the endpoints also works, and every risk still points at the exact path, method or schema it concerns.

Technical notes

Each risk has an ID, an area (naming, versioning, error responses, authentication, authorization, pagination, validation, breaking change, idempotency, rate limiting, data exposure, documentation or consistency), a severity, the exact location (path and method, schema name or "global"), the finding, its impact and a concrete fix such as the status code, header or schema change to add. The report also has a 0–100 design-quality score and the contract's strengths, and never reports an endpoint that is not in the contract.

References

  • OpenAPI SpecificationOpenAPI InitiativeThe standard for describing REST APIs: paths, operations, parameters, schemas, responses and security schemes.
  • JSON Schema SpecificationJSON SchemaThe vocabulary for describing and validating the shape of JSON documents (types, required properties, formats).
  • RFC 9110: HTTP SemanticsIETF · 2022The meaning of HTTP methods, header fields, status codes and content negotiation, independent of the wire version.