# GitLab Project topics API

**Canonical:** https://apis.io/apis/gitlab/gitlab-project-topics-api/  
**Provider:** GitLab — https://apis.io/providers/gitlab/  
**Base URL:** https://gitlab.com/api/v4  
**Documentation:** https://docs.gitlab.com/api/rest/

GitLab Project topics API is one of 189 APIs that [GitLab](https://apis.io/providers/gitlab/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification. This API exposes 16 JSON Schema definitions. Tagged areas include Project topics. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, authentication docs, an API reference, rate-limit docs, an AsyncAPI specification, and 16 JSON Schemas.

Use this API to interact with project topics. For more information, see [project topics](https://docs.gitlab.com/user/project/project_topics/).

## Operations (6)

| Method | Path | Summary |
|---|---|---|
| GET | `/api/v4/topics` | List all topics |
| POST | `/api/v4/topics` | Create a project topic |
| GET | `/api/v4/topics/{id}` | Retrieve a topic |
| PUT | `/api/v4/topics/{id}` | Update a project topic |
| DELETE | `/api/v4/topics/{id}` | Delete a project topic |
| POST | `/api/v4/topics/merge` | Merge topics |

## Machine-readable artifacts (65)

- **OpenAPI** — https://artifacts.apis.io/gitlab/openapi/gitlab-project-topics-api-openapi.yml
- **Documentation** — https://docs.gitlab.com/api/openapi/
- **Documentation** — https://docs.gitlab.com/api/issues/
- **Authentication** — https://docs.gitlab.com/api/rest/authentication/
- **JSONSchema** — https://artifacts.apis.io/gitlab/json-schema/gitlab-put-api-v4-application-settings-request-schema.json
- **JSONSchema** — https://artifacts.apis.io/gitlab/json-schema/gitlab-apientities-geo-node-status-schema.json
- **JSONSchema** — https://artifacts.apis.io/gitlab/json-schema/gitlab-apientities-geo-site-status-schema.json
- **JSONSchema** — https://artifacts.apis.io/gitlab/json-schema/gitlab-apientities-application-setting-schema.json
- **JSONSchema** — https://artifacts.apis.io/gitlab/json-schema/gitlab-post-api-v4-geo-status-request-schema.json
- **JSONSchema** — https://artifacts.apis.io/gitlab/json-schema/gitlab-put-api-v4-projects-id-request-schema.json
- **Documentation** — https://docs.gitlab.com/api/merge_requests/
- **Documentation** — https://docs.gitlab.com/api/pipelines/
- **Documentation** — https://docs.gitlab.com/api/jobs/
- **Documentation** — https://docs.gitlab.com/api/runners/
- **Documentation** — https://docs.gitlab.com/api/users/
- **Documentation** — https://docs.gitlab.com/api/repositories/
- **Documentation** — https://docs.gitlab.com/api/commits/
- **Documentation** — https://docs.gitlab.com/api/branches/
- **Documentation** — https://docs.gitlab.com/api/tags/
- **Documentation** — https://docs.gitlab.com/api/releases/
- **Documentation** — https://docs.gitlab.com/api/environments/
- **Documentation** — https://docs.gitlab.com/api/deployments/
- **Documentation** — https://docs.gitlab.com/api/pipeline_schedules/
- **Documentation** — https://docs.gitlab.com/api/labels/
- **Documentation** — https://docs.gitlab.com/api/milestones/
- **Documentation** — https://docs.gitlab.com/api/notes/
- **Documentation** — https://docs.gitlab.com/api/snippets/
- **Documentation** — https://docs.gitlab.com/api/packages/
- **Documentation** — https://docs.gitlab.com/api/container_registry/
- **Documentation** — https://docs.gitlab.com/api/vulnerabilities/
- **Documentation** — https://docs.gitlab.com/api/deploy_keys/
- **Documentation** — https://docs.gitlab.com/api/protected_branches/
- **Documentation** — https://docs.gitlab.com/api/wikis/
- **Documentation** — https://docs.gitlab.com/api/events/
- **Documentation** — https://docs.gitlab.com/api/search/
- **Documentation** — https://docs.gitlab.com/api/namespaces/
- **Documentation** — https://docs.gitlab.com/api/groups/
- **Documentation** — https://docs.gitlab.com/api/projects/
- **Documentation** — https://docs.gitlab.com/api/applications/
- **Documentation** — https://docs.gitlab.com/api/avatar/
- …and 25 more, listed in full on the page.

## Other GitLab APIs (12)

- [GitLab Orbit gRPC API](https://apis.io/apis/gitlab/gitlab-orbit-api/)
- [GitLab GraphQL API](https://apis.io/apis/gitlab/gitlab-graphql-api/)
- [GitLab Applications API](https://apis.io/apis/gitlab/gitlab-applications-api/)
- [GitLab Authorization API](https://apis.io/apis/gitlab/gitlab-authorization-api/)
- [GitLab Broadcast Messages API](https://apis.io/apis/gitlab/gitlab-broadcast-messages-api/)
- [GitLab Groups API](https://apis.io/apis/gitlab/gitlab-groups-api/)
- [GitLab Metadata API](https://apis.io/apis/gitlab/gitlab-metadata-api/)
- [GitLab Project Webhooks API](https://apis.io/apis/gitlab/gitlab-project-webhooks-api/)
- [GitLab Projects API](https://apis.io/apis/gitlab/gitlab-projects-api/)
- [GitLab Tokens API](https://apis.io/apis/gitlab/gitlab-tokens-api/)
- [GitLab User Info API](https://apis.io/apis/gitlab/gitlab-user-info-api/)
- [GitLab Webhook Configuration API](https://apis.io/apis/gitlab/gitlab-webhook-configuration-api/)

## Tags

Project topics

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