# GitLab API Style Guide

**Canonical:** https://apis.io/apis/style-guides/gitlab/  
**Provider:** API Style Guides — https://apis.io/providers/style-guides/  
**Base URL:** https://gitlab.com/api/v4/  
**Documentation:** https://docs.gitlab.com/ee/development/api_styleguide.html

GitLab API Style Guide is one of 11 APIs that [API Style Guides](https://apis.io/providers/style-guides/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include REST, GraphQL, GitLab, and Grape.

GitLab's developer-facing API style guide for the REST API (v4) and GraphQL API. Mandates Grape DSL parameter validation, Entity-based response payloads, Title Case summary verbs aligned to HTTP method, deprecation markers with migration guidance, and PATCH vs. PUT semantics. CC BY-SA 4.0.

## Machine-readable artifacts (5)

- **StyleGuide** — https://docs.gitlab.com/ee/development/api_styleguide.html
- **GraphQLStyleGuide** — https://docs.gitlab.com/ee/development/api_graphql_styleguide.html
- **License** — https://creativecommons.org/licenses/by-sa/4.0/
- **Scope**
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/style-guides/refs/heads/main/graphql/style-guides-graphql.md

## Other API Style Guides APIs (10)

- [Microsoft REST API Guidelines](https://apis.io/apis/style-guides/microsoft/)
- [Google API Improvement Proposals (AIPs)](https://apis.io/apis/style-guides/google-aip/)
- [Zalando RESTful API and Event Guidelines](https://apis.io/apis/style-guides/zalando/)
- [PayPal API Design Guidelines](https://apis.io/apis/style-guides/paypal/)
- [adidas API Guidelines](https://apis.io/apis/style-guides/adidas/)
- [Cisco REST API Design Guide](https://apis.io/apis/style-guides/cisco/)
- [Atlassian REST API Design Guidelines](https://apis.io/apis/style-guides/atlassian/)
- [Heroku Platform API Design Conventions](https://apis.io/apis/style-guides/heroku/)
- [Kubernetes API Conventions](https://apis.io/apis/style-guides/kubernetes/)
- [IETF HTTPAPI Working Group Drafts and RFCs](https://apis.io/apis/style-guides/ietf-httpapi/)

## Tags

REST, GraphQL, GitLab, Grape

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/style-guides/gitlab/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/style-guides/.