0n3
MCP servers · CardFlow · connector

Connect Claude (desktop & claude.ai) to CardFlow

One line gives Claude (desktop & claude.ai) your CardFlow account as tools: 8 endpoints, scan, orders, inventory, called with your own connection. No key in the prompt, a receipt for every call, revoke Claude (desktop & claude.ai)'s access alone any time.

Get the line for Claude (desktop & claude.ai)Connect CardFlow first

Three steps

  1. Create a free 0n3 account and connect CardFlow. Paste a key or sign in; it lands in your vault, encrypted.
  2. Install 0n3 into Claude (desktop & claude.ai). Add 0n3 as a custom connector; sign in once through the 0n door.
  3. Ask Claude (desktop & claude.ai): whoami. Then: "Scan in CardFlow".
Claude desktop app and claude.ai
  1. Settings → Connectors → Add custom connector
  2. Name: 0n3 · URL: https://0n3.app/mcp
  3. Click Connect and sign in with your 0n account (email + password, or paste your 0n token)
  4. Turn the connector on in a chat and ask: "whoami"

This is the OAuth door: no token to paste, revoke it any time from 0n3 → Tokens.

The line above carries a placeholder; 0n3.app/install mints a real key named for Claude (desktop & claude.ai) and fills it in.

What Claude (desktop & claude.ai) can then do in CardFlow

Scan · Identify a card from a photo URL (front, optional back) — the same engine MyKidCard uses1
ScanPOST /scan
Orders · eBay orders from the mirror, the packing list (one envelope per buyer, overdue first), and shipping an envelope with one tracking number1
OrdersGET /orders
Inventory · Every card with status, tier, comps, eBay ids and photo URLs0
Every card with status, tier, comps, eBay ids and photo URLs
Messages · Kids' custom thank-you notes waiting for a grown-up; send or drop one0
Kids' custom thank-you notes waiting for a grown-up; send or drop one
More · Everything else this app exposes.6
CardsGET /cards
CardGET /cards/{sku}
PackingGET /packing
ShipPOST /ship
Thank yousGET /thank-yous
Decide thank youPOST /thank-yous/{id}

CardFlow in other AI clients

Claude Code + CardFlowMCP server + skillChatGPT + CardFlowconnector · GPT actionCodex CLI + CardFlowMCP serverGemini CLI + CardFlowMCP serverCursor + CardFlowMCP serverVS Code (Copilot) + CardFlowMCP serverWindsurf + CardFlowMCP server

Claude (desktop & claude.ai) with other apps

Hostinger363 endpointsTelegram132 endpointsPipedrive95 endpointsResend67 endpointsSquare57 endpointsLinkedIn50 endpointsSlack45 endpointsFigma32 endpointsCloudConvert32 endpointseBay25 endpointsQuickBooks21 endpointsCloudflare21 endpoints