link2threadsYour AI Agent Can Now Attach Images to Threads Posts
2026-10-20T21:18:51+07:00
Posts published through an AI agent used to be text-only. If you wrote a post yourself and wanted your own photo in it, your agent had no way to attach the file — image cards only worked when the image already lived at a public URL.
That changes today. The Link2Threads MCP server now has an upload_media tool built for agents.
What your agent can do now
Tell your agent: "Publish this post, and attach this photo to the first card." The agent uploads the image file, gets a public URL back, and publishes the thread with the image on the card you picked. It works with instant publishing and scheduled posts alike, and image cards mix freely with text cards in the same thread.
The specs
- Formats: JPG, PNG, WebP
- Size: up to 10MB per image
- Placement: one image per card, on as many cards as you like
Files over 10MB are rejected with a clear error message. No silent failures, no quietly cropped images.
We tested every size
The 10MB number is not a guess. We generated test images at 1MB, 2MB, 3MB — all the way to 10MB — and uploaded and published every single one. All of them passed. An 11MB file is refused at upload, exactly as designed.
Who this is for
Anyone who publishes with an agent's help. A personal post with your own photo. A product shot for a deal post. A chart for a data story. If the image is a file on your machine, your agent can now put it in the thread — no manual uploading, no separate image host.
Available now on the Link2Threads MCP server. If your agent is already connected, it can use the new tool right away.
이 글처럼 URL 하나로 Threads 카드를 자동 생성하고 싶다면 → Link2Threads 무료로 시작하기