Side by side

Archway vs Capci

Both stand on ai diagram generators. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Archway

Free plan APISelf-hostedWeb

Archway combines repository and schema parsing with collaborative diagram editing and several deployment options. Consider the plan limits and AI prompt handling when deciding how to use it.

Visit Archway

Capci is a fit for creators who want prompt-generated diagrams and social assets, or developers who need API and MCP access. The free plan provides a shared lifetime pool of 50 generations; Pro or Developer has a monthly API and MCP allowance. Buyers needing custom deployment or self-hosting can contact Enterprise sales for contract-scoped terms.

Visit Capci

The facts

	Archway	Capci
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	API, Self-hosted, Web	API, Self-hosted, Web
Lowest paid plan	PRO: $12 a month	Pro: ₹375 a month
Plans published	5	4
Maker	Not published	Not published
Website	archdiagram.dev	capci.app
On ai diagram generators	#2 of 32	#6 of 32

Archway: what it does well

Creates C4 diagrams from GitHub repositories
Parses Prisma, Drizzle, and SQL DDL schemas without AI
Supports seven diagram types
Exports to Mermaid, PlantUML, D2, and more
Offers simultaneous editing and markdown notes

What to know first

Free plan allows three diagrams
Free plan includes five AI generations per month
Product itself is not SOC 2 certified
AI prompts are sent to Anthropic Claude

Capci: what it does well

Generates several diagram types from prompts
Architecture diagrams use cloud and data platform icons
More than 20 social and marketing formats
Exports visuals as PNG or animated GIF
API and MCP access is included in every plan

What to know first

Free use is capped at 50 lifetime generations
Free API and MCP use shares the same 50-generation pool
Logo creation after the first uses credits

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