Belastbaar MCP
Dutch tax data and tools inside your AI workflow
A hosted MCP endpoint that makes Dutch tax data usable in Cursor, Claude Code, and your own apps — fast to connect, safe by default, and built for reliable outputs.
Connect in minutes
Choose your client: one-click Cursor install, Claude Code CLI, or the MCP SDK.
Config (copy/paste)
{
"mcpServers": {
"Belastbaar MCP": {
"type": "streamable-http",
"url": "https://belastbaar.com/api/mcp",
"headers": {}
}
}
}Tip: keep headers empty unless you know you need auth. Public tools/resources work without tokens.
Built for practical outcomes
Belastbaar MCP is useful when you need correct, year-specific Dutch tax context — without building a tax knowledge layer from scratch.
AI assistants that don’t hallucinate rates
Expose tax brackets, credits, and allowances as structured resources and tools so your assistant can answer with real data.
Developer workflows in Cursor & Claude Code
Ask tax questions while coding, generate explanations, or validate assumptions with tools like get_tax_rate and search_knowledge.
Safe defaults for production-like usage
Read-only annotations, predictable JSON outputs, and optional OAuth for account-scoped tools.
Example prompts
Try these after connecting the server. They’re designed to trigger resources and tools reliably.
- What are the 2025 income tax brackets in the Netherlands?
- Call get_tax_rate for €50,000 income in 2025 and explain which bracket applies.
- Search the knowledge base for ‘zorgtoeslag’ and summarize the key eligibility rules.What is MCP?
Model Context Protocol (MCP) is an open standard that lets AI tools discover and call external tools and resources in a consistent way.
- Resources expose read-only data via URIs (e.g. tax://YEAR/overview)
- Tools expose callable functions (e.g. get_tax_rate)
- Clients can discover capabilities automatically
- OAuth can be used for account-scoped tools (optional)
What you get
A hosted MCP endpoint, built for reliable integrations.
Hosted endpoint
Connect to https://belastbaar.com/api/mcp using Streamable HTTP.
Tax resources
Read tax data via tax://YEAR/* and knowledge via knowledge://*.
Useful tools
get_tax_rate, compare_tax_years, search_knowledge — plus optional account tools.
Safe defaults
Read-only hints, no destructive tools, and OAuth-ready auth hints for account features.
FAQ
Quick answers for a smooth integration.