MCP Quickstart

Add the connector

Settings → Connectors → Add custom connector. Name it NinjaChat, paste:

https://www.ninjachat.ai/api/mcp

Claude opens NinjaChat’s sign-in. Approve — done forever.

Ask

Use NinjaChat to create four campaign directions for a
futuristic sneaker, then animate the strongest one.

Get a key

Grab an nj_sk_ key from Developers → Connections.

Add the server

claude mcp add --transport http ninjachat https://www.ninjachat.ai/api/mcp \
  --header "Authorization: Bearer nj_sk_YOUR_KEY"

Ask

Generate a 16:9 hero image for this landing page
and save it to /public.

Every image returns a URL, a ready-to-commit filename, and its MIME type — the agent downloads and places the file itself.

Then keep talking

Continuity is automatic — no URLs, no IDs, no re-prompting:

You say	What happens
”Make it red”	Edits the last result
”Animate the second one”	Turns pick #2 into video
”More like #3”	New generations in that direction

Cursor, ChatGPT, Codex, VS Code…

Every tool and parameter

Real multi-step workflows