Anthropic API vs Mermaid

Two Tech stack tools side by side: what each does, what it costs and who it suits.

The verdict Side by side Plans and pricing Who each is for Other options

The verdict

On the data we hold, Mermaid comes out ahead. Here is why, point by point.

What the data says

Only Mermaid has a free plan to start on.
Only Mermaid has an MCP server, so an AI employee can work in it directly.
In our Tech stack ranking, Mermaid places 15 and Anthropic API 5 of 72.

Side by side

Anthropic API and Mermaid compared
At a glance	Anthropic API	Mermaid
Starts at	Not known yet	$10/mo
Free plan	No	Yes
API	Yes	No
MCP server	No	Yes
Links	Visit	Visit

Plans and pricing

Anthropic API

Pricing not in our catalogue yet.

Mermaid

BasicFree plan with up to 3 diagrams, limited diagram size and limited AI.Free
PlusUnlimited diagrams and 300 AI credits a year; 10 per user per month billed annually.$120/yr/seat
Premium2,000 AI credits a year, free viewer seats and unlimited teams; 20 per user per month billed annually.$240/yr/seat

Prices as the vendors list them. They change often; the final price is on their sites.

Who each is for

Choose Anthropic API if…

Developers and technical teams building AI features, agents or automations into their own software, and who want Claude models behind them rather than a chat window.

Visit Read the review

Choose Mermaid if…

Developers, technical writers and operations teams who keep diagrams as text next to their code and docs, so they stay versioned and never turn into stale screenshots.

Visit Read the review

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