---
title: "Upload Attachment"
method: POST
path: "/api/v1/projects/{project_id}/attachments"
tags: ["attachments"]
---

# Upload Attachment

`POST /api/v1/projects/{project_id}/attachments`

## Path parameters

- `project_id` string, uuid, required — The unique identifier of the project

## Response `201`

Successful Response

- LLMAttachmentOutput — Extra media content attached to a LLM message.
  - `attachment_id` string, uuid, required
  - `file_name` string, required
  - `content_type` union, required
    - 'image/jpeg' | 'image/jpg' | 'image/png' | 'image/gif' | 'image/webp' | 'image/tiff' | 'image/bmp' | 'image/heic' | 'image/heif' | 'image/svg+xml' | 'image/avif' — An enum of mime types for images.
    - 'audio/mpeg' | 'audio/wav' | 'audio/ogg' | 'audio/m4a' | 'audio/aac' | 'audio/flac' | 'audio/webm' — An enum of mime types for audio.
    - 'video/mp4' | 'video/quicktime' | 'video/x-msvideo' | 'video/mpeg' | 'video/webm' | 'video/x-matroska' | 'video/x-ms-wmv' — An enum of mime types for video.
    - 'text/plain' | 'text/csv' | 'application/json' | 'application/xml' | 'text/html' | 'text/yaml' | 'text/markdown' | 'text/toml' | 'text/ini' | 'text/calendar' — An enum of mime types for text.
    - 'application/pdf' | 'application/rtf' | 'application/vnd.openxmlformats-officedocument.wordprocessingml.document' | 'application/msword' | 'application/vnd.ms-word.document.macroEnabled.12' | 'application/vnd.oasis.opendocument.text' | 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' | 'application/vnd.ms-excel' | 'application/vnd.ms-excel.sheet.binary.macroenabled.12' | 'application/vnd.ms-excel.sheet.macroenabled.12' | 'application/vnd.oasis.opendocument.spreadsheet' | 'application/vnd.openxmlformats-officedocument.presentationml.presentation' | 'application/vnd.ms-powerpoint' | 'application/vnd.ms-powerpoint.presentation.macroEnabled.12' | 'application/vnd.openxmlformats-officedocument.presentationml.slideshow' | 'application/vnd.ms-powerpoint.slideshow.macroenabled.12' | 'application/vnd.visio' | 'application/vnd.ms-project' | 'application/vnd.google-apps.document' | 'application/vnd.google-apps.spreadsheet' | 'application/vnd.google-apps.presentation' | 'application/vnd.google-apps.drawing' — An enum of mime types for documents.
    - 'application/zip' | 'application/x-rar-compressed' | 'application/x-tar' | 'application/gzip' | 'application/x-bzip2' | 'application/x-7z-compressed' | 'application/x-xz' | 'application/zstd' | 'application/x-lzma' | 'application/x-lz4' | 'application/x-cpio' | 'application/vnd.ms-cab-compressed' | 'application/x-iso9660-image' | 'application/java-archive' | 'application/octet-stream' — An enum of mime types for archives.
    - 'message/rfc822' | 'application/vnd.ms-outlook' — An enum of mime types for email.
  - `content_category` 'image' | 'audio' | 'video' | 'text' | 'document' | 'archive' | 'email', required — The category of a content type.

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/rebolt/apis/fastapi.md) · [All operations](https://skmtc.dev/rebolt/apis/fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/rebolt/fastapi/revisions/ee5884f323f3/schema)