These uploads don't all do the same thing, do they?

Correct, and that is the main thing to get right. Playwright's upload fills a form field, MinIO's writes to object storage, Telegram's pushes a document up for delivery into a chat. They share the word upload and little else, so pick by where the file needs to end up, not by the tool name alone.

Which one should I use to store a file an agent generates?

An object-storage server like MinIO, since upload_object returns a durable handle you can read back in a later session. The browser and chat uploads are about delivery, not persistence, so they are the wrong tool for anything the agent needs to retrieve again.

MCP servers that can upload a file

6 verified servers expose a tool that can upload a file

"Upload a file" sounds like one action, but it covers at least three: filling a file input on a web page, putting an object in storage, and attaching media to a wiki or a chat. The verified servers below do different versions of it, and the right one depends on where the bytes are going.

These servers let an agent upload a file, from browser form fields to object stores.

Top pick

Playwright

Microsoft

Official

Microsoft's official browser-automation server that drives pages via the accessibility tree, not pixels.

browser-automation33,295

Tool:

browser_file_upload

browser_file_upload fills a file input on a live web page, the upload an agent performs while driving a form through the browser.

Pick 2

MinIO

Official

MinIO's official MCP server lets agents browse buckets, read and write objects, manage tags and versioning, and ask AI questions about stored objects.

file-storage41

Tool:

upload_object

MinIO's upload_object writes into S3-compatible object storage, the durable kind of upload for artifacts, exports, and backups.

Pick 3

fal.ai

Raveen Beemsingh

Community

Community MCP server for fal.ai: generate and edit images, video, music, and audio with 600+ fast generative models from your agent.

ai-ml48

Tool:

upload_file

On fal, upload_file stages an image or asset so a generative model can run against it on the next call.

Pick 4

MediaWiki

Professional Wiki

Community

A maintained MCP server that connects an agent to any MediaWiki — including Wikipedia — to search, read, create, and edit pages.

knowledge-base95

Tools:

upload-file
upload-file-from-url

MediaWiki accepts media from a local path or a remote URL, which suits an agent publishing images into a wiki article.

Pick 5

chigwell (Eugene Evstafev)

Community

A maintained Telegram MCP server powered by Telethon: read chats, manage groups and contacts, and send or modify messages, media, and more from your agent.

communication1,200

Tool:

upload_file

Telegram's upload_file pushes a document up to Telegram's servers and returns a file handle, the first half of delivering it into a chat rather than storing it long term.

Pick 6

BrowserStack

Official

BrowserStack's official server runs manual and automated tests on real browsers and devices, and debugs the failures.

testing139

Tool:

uploadProductRequirementFile

uploadProductRequirementFile takes a PRD or PDF into BrowserStack Test Management and returns a mapping id its AI uses to generate test cases, a narrow but real upload path.

What to know

Read each tool for what it actually moves. A browser-automation upload pushes a local file into a form the agent is filling. An object-storage upload writes a durable artifact you will read back later. A chat or wiki upload attaches media to a message or a page. They share a verb and almost nothing else, so matching the server to the destination matters more here than on most capabilities.

Each of these hands back a handle the agent needs later: an S3 key, a fal CDN URL, a MediaWiki file title. Lose that string between sessions and the upload may as well not have happened, since nothing else points at the bytes.

Questions

These uploads don't all do the same thing, do they?: Correct, and that is the main thing to get right. Playwright's upload fills a form field, MinIO's writes to object storage, Telegram's pushes a document up for delivery into a chat. They share the word upload and little else, so pick by where the file needs to end up, not by the tool name alone.
Which one should I use to store a file an agent generates?: An object-storage server like MinIO, since upload_object returns a durable handle you can read back in a later session. The browser and chat uploads are about delivery, not persistence, so they are the wrong tool for anything the agent needs to retrieve again.