Server data from the Official MCP Registry
Query your live AccountsOS books: balances, transactions, VAT, deadlines, invoices.
About
Query your live AccountsOS books: balances, transactions, VAT, deadlines, invoices.
Security Report
AccountsOS MCP server is well-structured with proper authentication and reasonable code quality. The server requires API key authentication via environment variables, has appropriate input validation, and lacks dangerous patterns. Permissions are narrowly scoped to HTTP API calls with the backend service, which is appropriate for the server's purpose. Minor code quality observations around error handling and input sanitization do not significantly impact security. Supply chain analysis found 1 known vulnerability in dependencies (0 critical, 1 high severity). Package verification found 1 issue.
4 files analyzed · 6 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
Environment variable: ACCOUNTSOS_API_KEY
Environment variable: ACCOUNTSOS_BASE_URL
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-paulgosnell-accountsos-mcp": {
"env": {
"ACCOUNTSOS_API_KEY": "your-accountsos-api-key-here",
"ACCOUNTSOS_BASE_URL": "your-accountsos-base-url-here"
},
"args": [
"-y",
"@thriveventurelabs/accountsos-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
AccountsOS MCP Server
Query your live AccountsOS ledger from any MCP client (Claude Desktop, Claude Code, Cursor) via the Model Context Protocol.
AccountsOS runs jurisdiction playbooks for 26 countries. The UK is the proof jurisdiction, with live HMRC MTD VAT filing.
npm: https://www.npmjs.com/package/@thriveventurelabs/accountsos-mcp
Installation
Option 1: Global Install (Recommended)
npm install -g @thriveventurelabs/accountsos-mcp
Then add to Claude Desktop config:
macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
{
"mcpServers": {
"accountsos": {
"command": "accountsos-mcp",
"args": [],
"env": {
"ACCOUNTSOS_API_KEY": "your-api-key-here"
}
}
}
}
Option 2: Using npx
{
"mcpServers": {
"accountsos": {
"command": "npx",
"args": ["--yes", "@thriveventurelabs/accountsos-mcp@latest"],
"env": {
"ACCOUNTSOS_API_KEY": "your-api-key-here"
}
}
}
}
Get your API key from AccountsOS Settings.
Available Tools
Read Operations
| Tool | Description |
|---|---|
get_transactions | Query transactions with filters (date, category, amount, search) |
get_balance | Get current account balance(s) |
get_deadlines | View upcoming tax and filing deadlines |
get_vat_summary | Get VAT summary for any quarter |
search_documents | Search uploaded receipts and invoices |
list_categories | List available UK GAAP transaction categories |
Write Operations
| Tool | Description |
|---|---|
create_transaction | Create a new transaction (with auto-categorization) |
update_transaction | Update category, notes, or reconciliation status |
categorize_transaction | Get AI-suggested category for a transaction |
create_deadline | Create a new tax/filing deadline reminder |
Available Resources
| Resource | Description |
|---|---|
accountsos://company | Company details and settings |
accountsos://transactions | Most recent 50 transactions |
accountsos://documents | Uploaded documents |
accountsos://deadlines | Upcoming deadlines |
Example Prompts
Once connected, try asking Claude:
- "What's my account balance?"
- "Show me transactions from last month"
- "When is my next VAT deadline?"
- "How much have I spent on software subscriptions?"
- "Create a transaction for lunch with a client, £45"
- "What's my VAT summary for Q4 2024?"
Development
# Install dependencies
npm install
# Build
npm run build
# Run locally (for testing)
ACCOUNTSOS_API_KEY=sk_live_xxx npm start
Environment Variables
| Variable | Required | Description |
|---|---|---|
ACCOUNTSOS_API_KEY | Yes | Your AccountsOS API key |
ACCOUNTSOS_BASE_URL | No | Override API base URL (default: https://accounts-os.com) |
Troubleshooting
Server disconnected
Check logs at ~/Library/Logs/Claude/mcp-server-accountsos.log
npx issues
If npx has caching issues, use global install instead:
npm install -g @thriveventurelabs/accountsos-mcp
License
MIT
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