I will write API documentation and an openapi swagger specification

Turkey

I speak Russian, English

Business and System Analyst, 10 years in banks and fintech

I turn vague ideas into clear, buildable requirements. 10 years as a Business and System Analyst in banks (Citibank, Alfa-Bank, Pochta Bank) and fintech platforms. At a startup I was the first analyst...
About this Gig

Bad API docs slow down every integration. I write clear API specifications and documentation that frontend, mobile and partner teams can use right away.


I am a Business and System Analyst with 10 years in banks and fintech. I work with REST APIs, JSON, OpenAPI/Swagger and Postman every day: specifying endpoints, request and response models, validation rules and error handling.


What you get:

OpenAPI 3 (Swagger) specification in YAML or JSON

Endpoint descriptions, parameters, request and response examples

Error codes and validation rules

Data model description

Postman collection to test the endpoints (Premium)


Good for: new services, undocumented legacy APIs, partner integrations, payment and fintech APIs.


Please send me your current docs, code samples or a short brief. Message me before ordering to confirm the number of endpoints and scope.

Document type:

Documentation

•

Technical Specifications

Language:

English

Delivery style preference

Please inform the freelancer of any preferences or concerns regarding the use of AI tools in the completion and/or delivery of your order.

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