billy-mcp

Connects AI assistants to the Danish accounting platform Billy (billy.dk) for managing invoices, journal entries, balances, and receipts, with built-in human approval for all write operations.

→ Thourum/billy-mcp · listed on glama

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// key findings

✅

40 tools verified — handlers match their declared behaviour

23 read-only tools verified — handlers contain no write/delete/exec

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 1 credential: BILLY_ACCESS_TOKEN

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

🔐 secretBILLY_ACCESS_TOKEN— "": "<your token>"

configBILLY_BASE_URL— no Defaults to https://api.billysbilling.com/v2

configBILLY_LOCALE— no en_US, da_DK, fr_FR, nl_NL, de_DE

configBILLY_ORGANIZATION_ID— no Auto-resolved when the token maps to one company

configBILLY_WRITE_MODE— Every write (create/update/approve/void/pay/upload) is gated by :

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 2 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/thourum-billy-mcp-11k8za)](https://m8ven.ai/mcp/thourum-billy-mcp-11k8za)

commit: 30524f82234931242891e317bd38f65c65758ac7

code hash: 902bc0c1b636af71fabedc964b37f449ebdfd0930bf58c7445c230122e5716f3

verified: 7/9/2026, 10:07:22 AM

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