MCP server

PDF Slim — PDF Compression for AI

io.github.zhaoyaqi18/pdfslim

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Compress PDFs to exact target sizes (82-93% smaller). Tools: compress_pdf, optimize_pdf, inspect_pdf

Working at last checkAbout 562 tokens per request once connected3 tools

https://api.pdfslim.app/mcp

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 3
Token cost: About 562 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http pdfslim https://api.pdfslim.app/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.pdfslim]
url = "https://api.pdfslim.app/mcp"

Gemini CLI

{"mcpServers":{"pdfslim":{"httpUrl":"https://api.pdfslim.app/mcp"}}}

Cursor

{"mcpServers":{"pdfslim":{"url":"https://api.pdfslim.app/mcp"}}}

VS Code

{"servers":{"pdfslim":{"type":"http","url":"https://api.pdfslim.app/mcp"}}}

Antigravity

agy mcp add pdfslim https://api.pdfslim.app/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"pdfslim","server_url":"https://api.pdfslim.app/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"pdfslim","server_url":"https://api.pdfslim.app/mcp"}

compress_pdf ~290 tokens
Compress a PDF file to reduce its size. Renders pages and re-encodes as JPEG, iterating quality/resolution to hit a target size. Use this when a user wants to shrink a PDF (e.g. to 500KB, 1MB, or "smaller"). Free anonymous tier: 20 calls/day per IP, files up to 10MB. For larger files (up to 100MB) o
inspect_pdf ~116 tokens
Inspect a PDF: page count, file size, password protection. Use before deciding how to process a PDF. Free anonymous tier: 20 calls/day per IP. More calls need an API key (https://ko-fi.com/yugutou/shop).
optimize_pdf ~156 tokens
Lossless PDF optimization: garbage collection, stream re-compression. No quality loss. Good for PDFs with redundant data; effect is small on already-optimized files. Free anonymous tier: 20 calls/day per IP, files up to 10MB. Larger files / more calls need an API key (https://ko-fi.com/yugutou/shop)

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