MCP servers · CardFlow · MCP server
Connect Codex CLI to CardFlow
One line gives Codex CLI 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 Codex CLI's access alone any time.
Three steps
- Create a free 0n3 account and connect CardFlow. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Codex CLI. OpenAI's terminal agent reads 0n3 over Streamable HTTP with a token from your environment.
- Ask Codex CLI: whoami. Then: "Scan in CardFlow".
Put the token in your environment
export ON3_TOKEN="<your 0n token>"
Add it to your shell profile so Codex finds it next time.
The line above carries a placeholder; 0n3.app/install mints a real key named for Codex CLI and fills it in.
What Codex CLI can then do in CardFlow
Scan · Identify a card from a photo URL (front, optional back) — the same engine MyKidCard uses1
Scan
POST /scanOrders · eBay orders from the mirror, the packing list (one envelope per buyer, overdue first), and shipping an envelope with one tracking number1
Orders
GET /ordersInventory · 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
Cards
GET /cardsCard
GET /cards/{sku}Packing
GET /packingShip
POST /shipThank yous
GET /thank-yousDecide thank you
POST /thank-yous/{id}CardFlow in other AI clients
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