Renderball for coding agents

One command, and your coding agent makes decks.

Claude Code, Codex, Cursor and friends connect to Renderball with a single line. The agent writes the presentation the way it writes code, Renderball designs and renders it, the agent checks the pages, and you get an editor link.

One command

Claude Code:

claude mcp add --transport http renderball https://renderball.com/api/mcp

Codex:

codex mcp add renderball --url https://renderball.com/api/mcp

Cursor: Add to Cursor or this in any client that takes a JSON config:

{ "mcpServers": { "renderball": { "url": "https://renderball.com/api/mcp" } } }

Gemini CLI:

gemini extensions install https://github.com/agarces1999/renderball-skills

Or install it as a skill or plugin

For agents that read skills, in any project:

npx skills add agarces1999/renderball-skills

Claude Code and Cowork, as a plugin with a /deck command:

/plugin marketplace add agarces1999/renderball-skills
/plugin install renderball@renderball

With an account

The commands above need no account: the deck comes back as one link, limited to a few per day. With a key from your account page there are no limits, your agent can list and revisit your decks, and everything lands in your account straight away:

claude mcp add --transport http renderball https://renderball.com/api/mcp \
  --header "Authorization: Bearer rb_live_…"

What your agent does

1. Starts the deck with your brief, the brand it knows, and a page-by-page outline. Renderball answers with the writing brief: the format, your brand facts, the rules.
2. Writes the whole deck itself, on its own plan. Every number has to come from your material; nothing is invented.
3. Sends the file in. Renderball checks it against the brief, repairs small slips, renders every page with motion, and hands the rendered pages back as images, so your agent looks at its own work and fixes overlaps or clipped text before you see anything.
4. Gives you one link. It shows the deck; its Edit button opens the editor, where you move, rewrite, regenerate or animate any element, and share it.

Try this

Something like this, in your own words. Give the brand name and only the colours you actually know; your agent never guesses a colour.

Use Renderball to make a 5-page deck introducing our product to a new customer:
the problem, how we solve it, why it's different, the next step.
Our brand is Yourcompany, accent colour #1F6FEB. Give me the link when it's ready.

What it costs

Nothing to try. Editing is free, forever. Generation is metered per token, and the first million tokens are free, about three full decks. A deck made without an account is limited to a few per day and disappears after 7 days unless you sign in through its Edit button, which makes it yours.

Questions

Does the agent spend my tokens or yours?

Yours, on its own plan, to write the deck. Renderball spends a few cents checking and rendering it; editing is free.

Can it fix a page it does not like?

Yes. The ready reply carries the rendered pages as images; the agent looks at them, fixes the file and submits again before it hands you the link.

Where do I edit?

In the editor on renderball.com, at the link the agent returns. Every element is real and editable.

I want this in a chat, not a terminal.

See Renderball for Claude or Renderball for ChatGPT.

Also: Renderball for Claude · Renderball for ChatGPT · every setup on one page · the recipe an AI reads