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ChangeThisFile — file conversion between 690+ formats (hosted St…

@aadilr

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基本信息

分类

媒体与设计

许可证

MIT

作者

aadilr

关于 ChangeThisFile — file conversion between 690+ formats (hosted Streamable HTTP + stdio) MCP Server

MCP server for ChangeThisFile — free file conversion between 690+ formats (image, video, audio, document, data, font, ebook, archive). No auth required.

ChangeThisFile — file conversion between 690+ formats (hosted Streamable HTTP + stdio) MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "changethisfile-mcp": {
      "command": "node",
      "args": [
        "index.js"
      ]
    }
  }
}

ChangeThisFile — file conversion between 690+ formats (hosted Streamable HTTP + stdio) MCP Server 工具

2

Convert a file. Pass a publicly accessible `source_url` **or** `base64_content` (max ~5MB), plus a `target_format` (e.g. `pdf`, `mp3`, `json`). Source format is auto-detected from the URL/filename, or pass `source_format` explicitly. Returns a download URL valid for 1 hour.

List all supported conversion routes, optionally filtered by `source_format` (e.g. `docx` → see every format you can convert DOCX into).

概览

What is ChangeThisFile?

ChangeThisFile is a Model Context Protocol (MCP) server that converts files between 690+ formats (image, video, audio, document, data, font, ebook, archive) using a hosted endpoint. It is free, requires no API key or signup, and is designed for any MCP client.

How to use ChangeThisFile?

You can use the hosted remote endpoint (https://changethisfile.com/mcp) with streamable HTTP transport, or run a local stdio bridge via npx github:aadilr/changethisfile-mcp. It also works as a Claude Code plugin, an Agent Skill, or via Docker. Two tools are provided: convert_file (pass a source URL or base64 content and a target format) and list_conversions (list all supported routes).

Key features of ChangeThisFile

  • Convert between 690+ file formats
  • No API key or signup required
  • Remote streamable HTTP or local stdio transport
  • Runs on real engines (FFmpeg, LibreOffice, Calibre, etc.)
  • Temporary signed download URL (valid 1 hour)
  • Auto-delete uploaded files within 24 hours

Use cases of ChangeThisFile

  • Convert a PDF to DOCX for editing
  • Transcode a video from MOV to MP4
  • Extract audio from a video file to MP3
  • Convert a spreadsheet (XLSX) to CSV for data analysis
  • Batch list all conversion routes for a specific source format

常见问题

1

Do I need an API key or account?

No. The service is free and requires no authentication or signup.

2

How long are uploaded files stored?

Uploaded files are auto-deleted within 24 hours. Download URLs expire after 1 hour.

3

What formats are supported?

Over 690 formats across image, video, audio, document, data, font, ebook, and archive categories. Use `list_conversions` for the full route table.

4

Is there rate limiting?

Per-IP rate limiting applies. For higher volume, see the authenticated API at changethisfile.com/api.

5

How can I list all supported conversion routes?

Use the `list_conversions` tool, optionally filtered by source format (e.g., `docx` to see all target formats).

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