The Slabline MCP server,
connected in one click.
Values graded sports cards and Pokémon/TCG slabs by grade from real sales. Free, read-only. Connect the official Slabline MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Slabline to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http slabline https://slabline.ai/mcpRun in your terminal, then restart Claude Code.
Slabline · https://slabline.ai/mcp
What your AI can do with Slabline
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “search_cards”: Search Slabline's catalogue of 1.5M+ graded cards (PSA/BGS/SGC/CGC) by player, set, or year. Returns up to 10 matches with their current Sla.”
“Use “value_card”: Get one card's current Slabline value: graded market value, raw/loose value, and the across-grades total. Pass a slug from search_cards, or.”
“Use “search”: Search Slabline for graded trading cards (sports & TCG) by player, set, or year. Returns matches, each with an id to pass to fetch.”
“Use “fetch”: Fetch one Slabline card by id (the slug returned by search): its current graded market value, raw/loose value, and across-grades total.”
How secure is the Slabline MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Slabline holds up.
Official endpoint
Operated by Slabline (slabline.ai) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Slabline adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Slabline
Choose Slabline in the gate directory. No sign-in needed.
Use it anywhere
Slabline's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Slabline exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
search_cards — Search Slabline's catalogue of 1.5M+ graded cards (PSA/BGS/SGC/CGC) by player, set, or year. Returns up to 10 matches with their current Sla
value_card — Get one card's current Slabline value: graded market value, raw/loose value, and the across-grades total. Pass a slug from search_cards, or
search — Search Slabline for graded trading cards (sports & TCG) by player, set, or year. Returns matches, each with an id to pass to fetch.
fetch — Fetch one Slabline card by id (the slug returned by search): its current graded market value, raw/loose value, and across-grades total.
Who runs the Slabline MCP server?
The Slabline MCP server at a glance
https://slabline.ai/mcpQuestions, answered
Is there an official Slabline MCP server?
Yes — Slabline operates its own remote MCP server at slabline.ai. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Slabline to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Slabline in the directory. No account or sign-in is needed. From then on, Slabline's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Slabline runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Slabline MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Slabline in minutes. No credit card required.
Connect more than just Slabline
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Slabline in: Claude · Claude Code · ChatGPT · Cursor · VS Code