# linear Attachments API

**Canonical:** https://apis.io/apis/linear/linear-attachments-api/  
**Provider:** linear — https://apis.io/providers/linear/  
**Base URL:** https://api.linear.app/graphql  
**Documentation:** https://linear.app/developers/graphql

linear Attachments API is one of 3 APIs that [linear](https://apis.io/providers/linear/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 1 JSON Schema definition. Tagged areas include Attachments. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, authentication docs, a getting-started guide, rate-limit docs, and 1 JSON Schema.

File upload for issue and comment attachments

## Machine-readable artifacts (12)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/linear/refs/heads/main/openapi/linear-attachments-api-openapi.yml
- **Documentation** — https://linear.app/developers/graphql
- **Reference** — https://studio.apollographql.com/public/Linear-API/schema/reference?variant=current
- **Authentication** — https://linear.app/developers/oauth-2-0-authentication
- **GettingStarted** — https://linear.app/developers/sdk
- **RateLimits** — https://linear.app/developers/rate-limiting
- **Pagination** — https://linear.app/developers/pagination
- **Filtering** — https://linear.app/developers/filtering
- **Deprecation Notice** — https://linear.app/developers/deprecations
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/linear/refs/heads/main/json-schema/linear-issue-schema.json
- **JSONLDContext** — https://raw.githubusercontent.com/api-evangelist/linear/refs/heads/main/json-ld/linear-context.jsonld
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/linear/refs/heads/main/graphql/linear-graphql.md

## Other linear APIs (2)

- [Linear Webhooks API](https://apis.io/apis/linear/linear-webhooks-api/)
- [linear GraphQL API](https://apis.io/apis/linear/linear-graphql-api/)

## Tags

Attachments

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