Welcome to Capci
Capci turns a one-line description into publish-ready, on-brand visual content — architecture diagrams, social posts, data charts, brand-kit assets, and more. Built for humans in the web app, and callable directly by AI agents via API or MCP.
What Capci does
- Architecture diagrams — describe a system in plain English, get a real cloud-provider-icon diagram (GCP/AWS/Azure/Databricks/Snowflake), with automatic layout.
- Data diagrams — flowcharts, sequence diagrams, class diagrams, ER schemas, mindmaps, and Gantt charts, all from a prompt.
- Social & marketing posts — 20+ formats (listicles, quote cards, stat tiles, comparisons, announcements, and more), auto-picked from your prompt or pinned explicitly.
- Data charts — bar, line, donut, and KPI-tile charts generated deterministically from numbers you supply, no prompt needed.
- Brand kits — a saved brand (logo, colors, name, tagline) applied automatically to everything you generate, plus deterministic brand-kit assets (social covers, banners, cards).
- Animation — turn a diagram or post into a reveal GIF.
Two ways to use it
The web app
Sign in with Google, set your brand once, and generate content interactively in the Studio — free to start, no card required.
The API / MCP server
Everything the Studio can do is also a REST endpoint or an MCP tool — call it from your own app, script, or AI agent. Requires a Developer plan.
Where to go next
Getting started →
Sign up, create an API key, and make your first call.
Pricing →
Free, Creator, and Developer plans — what's included at each tier.
Authentication & concepts →
How API keys work, brand resolution, rate limits.
Diagrams API →
The full create → refine → export → rename flow.
Posts API →
Generate branded social/marketing graphics from a prompt.
MCP server →
Connect Claude, Cursor, VS Code, or an ADK agent directly.