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Email examplesBrandsMermaid ChartFeature announcement

Mermaid Chart API beta announcement

Mermaid announces its API open beta and explains how it can validate, render, generate, and repair diagrams. The email covers beta access, pricing expectations, limitations, and how to share feedback.

Mermaid Chart

Day 9 after signup

Mermaid API is in open beta

Validate, render, generate and repair diagrams from your code.

Why it works

  • Lead with the announcement, then explain the product through a clear list of concrete capabilities.
  • Pair access instructions with practical details about pricing, limitations, and what happens after the beta.
  • A founder sign-off and direct request for feedback make a technical product announcement feel approachable.

How it is built

  1. Personal greeting
  2. Beta announcement
  3. Capability explanations
  4. Operational benefits
  5. Access and beta terms
  6. Feedback request and sign-off
Email copy

Hi there, Mermaid API is in open beta as of today. Your program, agent, or pipeline sends diagram code over HTTP and gets back an answer, without running Mermaid itself. Send diagram code, or a description, over HTTP. Get back one of four things: Validate: whether the code is valid, and if not, the line and column where it breaks, with a stable error code your program can act on. Render: SVG, PNG, or PDF, with any Mermaid theme, look, and layout. Generate: describe a diagram, get working Mermaid code. Repair: send broken code, get working code. It always runs the latest Mermaid, including our own layouts and themes. No headless browser to host and no version to track. Sign in with your Mermaid account and create a key here Docs, with examples and an OpenAPI spec here More on the product here It’s free during the beta: every account gets a monthly allowance of credits, and you can buy more if you run out. The beta runs through November – and we’ll publish pricing at least two weeks before it ends. Keys keep working, and any credits you buy carry over. Breaking changes will be announced in the changelog and there’s no uptime guarantee yet. Try it on something real and tell us how it went: what worked, what didn’t, what’s missing. If something breaks, include the request id from the response so we can trace it. Excited to see what you build, Knut Founder & CTO, Mermaid Contact Us | Documentation | Unsubscribe

Brand
Mermaid Chart
Industry
SaaS · Diagramming software
Type
Product update
Email
Feature announcement
Sent
Day 9 after signup
Sent at
Thu, 11:01 PM UTC
From
Knut @ Mermaid <no-reply@mermaid.ai>
Sent with
Brevo
Plain textFounder voice
All feature announcement email examples

Breakdown

Calls to action
0 buttons, 12 links
Length
251 words · 1 min read
Images
3
Layout
Single column · Balanced
Voice
Informative
Language
English
Fonts
Arial
Dark mode
No custom styles

Colors

  • #e0095f
  • #ffffff
  • #3b3f44
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