Available

Compatible Platforms + AccountsOS

Accounting tools for every AI agent platform

AccountsOS works with any platform that supports the Model Context Protocol or REST APIs. From OpenClaw and Composio to LangChain and CrewAI — give your agents UK accounting capabilities wherever they run.

Platforms

Tools

MCP

Protocol

REST

Fallback

Get Started View API Docs

Universal integration

# Works with any MCP client
npm install -g @thriveventurelabs/accountsos-mcp

# Or use REST from any language
curl -X POST https://accounts-os.com/api/mcp \
  -H "Authorization: Bearer sk_live_..." \
  -H "Content-Type: application/json" \
  -d '{"type":"tool","name":"get_balance","arguments":{}}'

Available Tools

Tool	Description	Scope
`get_transactions`	Query income and expenses with date and direction filters	read
`get_balance`	Check current account balances across all accounts	read
`get_vat_summary`	Get VAT position for any quarter	read
`get_deadlines`	List upcoming filing deadlines	read
`create_transaction`	Record income or expense entries	write
`update_transaction`	Modify transaction details or categories	write
`categorize_transaction`	Get AI category suggestion for a transaction	write
`list_categories`	Browse HMRC-aligned expense and income categories	read
`create_deadline`	Add custom filing deadlines and reminders	write
`search_documents`	Find receipts, invoices, and contracts	read
`upload_document`	Store receipts and invoices with metadata	write
`get_dla_balance`	Check Director's Loan Account with S455 warnings	read
`get_invoices`	List and filter invoices by status	read

Features

Works with any MCP-compatible agent platform

REST API fallback for platforms without MCP support

Pre-built integrations for OpenClaw, Composio, LangChain, and CrewAI

Standardised tool schemas for easy integration

UK-specific accounting logic built into every tool

Same 13 tools across all platforms — consistent API surface

How It Works

Choose your platform

AccountsOS works with OpenClaw, Composio, LangChain, CrewAI, or any MCP/REST-compatible platform.

# MCP: npm install -g @thriveventurelabs/accountsos-mcp
# REST: Use https://accounts-os.com/api/mcp

Configure authentication

Set your API key as an environment variable. The integration handles the rest.

export ACCOUNTSOS_API_KEY="sk_live_..."

Give your agent accounting skills

Your agent now has 13 UK accounting tools. Transactions, VAT, deadlines, documents, and more.

agent.add_tools(accountsos.get_all_tools())
agent.run("Check my VAT position for Q4")

Benefits

One API, every platform — no vendor lock-in

MCP native with REST fallback for full compatibility

Pre-built integrations for popular agent frameworks

UK accounting logic embedded in every tool response

Consistent tool schemas across all platforms

Frequently Asked Questions

Which agent platforms are supported?

AccountsOS works with any platform that supports MCP (Model Context Protocol) or REST APIs. Tested integrations include OpenClaw, Composio, LangChain, CrewAI, and Claude Desktop. Any MCP client or HTTP client works.

Do I need different API keys for different platforms?

No. One API key works across all platforms. You can generate multiple keys with different scopes if you want to give different platforms different permission levels.

Is there a difference between MCP and REST access?

The tools and data are identical. MCP provides a standardised protocol that agent platforms can discover automatically. REST gives you direct HTTP access for custom integrations. Both use the same authentication and return the same data.

Can I switch platforms without changing my AccountsOS setup?

Yes. Your AccountsOS data and API keys are platform-independent. Switch from LangChain to CrewAI, or add Claude Desktop alongside your existing REST integration — no migration needed.

Related Connections

Available

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AI-powered accounting for your UK limited company.

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