generated: '2026-07-20' method: derived source: openapi/preply-openapi-original.json notes: >- Standards conformance derived from the public Preply ChatGPT-plugin OpenAPI. The surface is a small unauthenticated read-only search API. standards: - id: openapi-3.0 conforms: true evidence: openapi 3.0.1 document published at https://preply.com/openapi.yaml - id: oauth2 conforms: false evidence: no securitySchemes declared - id: oidc conforms: false - id: rfc9457-problem-details conforms: false evidence: errors returned as a string array in the 200 envelope, not application/problem+json - id: json-api conforms: false - id: pagination conforms: true evidence: page-number pagination with fixed size 10