Start free, upgrade when you need more. All plans include core semantic infrastructure features.
A note from our founder
New plans are on a short pause — here's why
Black Ice began as a solo-founder adventure in Ireland — go raibh míle maith agaibh to everyone who believed in it from day one.
What started there has grown into a bigger dream: turning Black Ice into a real company, with Spain as its new home. While we finalize the paperwork for our new legal entity, new plan purchases are temporarily paused.
On the Free plan?
Keep building — everything works exactly as before.
Already a paying customer?
Nothing changes. Your plan, workspaces, and data are completely safe. When the new entity is live, we'll personally guide you through the updated billing details — no action needed from you, and nothing will be lost.
Thank you for growing with us.
I know what I'm building → Self-serve
Free
For language professionals getting started
€0
Free forever
Up to 50 concepts
Up to 3 markets
Semantic relationship mapping
Export (JSON, CSV)
API access (60 reads / 30 writes per min)
10,000 API + MCP calls per month
MCP integration (Claude, Cursor, …)
Community support
Most Popular
Pro
For Localization Project Managers
€49/month
Go unlimited
Up to 350 concepts
Up to 20 markets
Knowledge graph visualization
Approval workflows
API access (300 reads / 120 writes per min)
Unlimited API + MCP calls
MCP integration (Claude, Cursor, …)
Priority support
Builder
For teams and organizations
€199/month
Built to scale
Unlimited markets & concepts
GitHub Sync for AI agents
API access (1,000 reads / 400 writes per min)
Unlimited API + MCP calls
MCP integration (Claude, Cursor, …)
1h/month agentic workflow consultancy
Team workspaces (up to 3)
Up to 10 team members
Live 1:1 session with our team to design and tune your AI agent workflows.
Compare plans
See what's included across every tier — including Custom Partner.
Comparison of Free, Pro, Builder, and Custom Partner plans
We help you design your multilingual knowledge graph from scratch and guide you on the best way to plug it into your AI stack — not a template, your actual taxonomy, your markets, your terminology.
What's included
Multilingual knowledge graph design
AI pipeline integration guidance
Dedicated support & onboarding
Ongoing maintenance option
Frequently asked questions
Billing, integrations, multilingual support, and more.