Bring Your Own AI Assistant.
We Provide the Authoritative Financial Ground Truth.
Say goodbye to restrictive, £40-per-seat closed chatbot sidebars. LedgerHQ is an open, AI-native practice operating system. Connect whatever AI assistant your practice already uses: Microsoft Copilot, Claude Cowork, OpenAI ChatGPT, or any tool supporting the open Model Context Protocol (MCP), with deterministic “Propose-Approve” human accountant review.
{
"mcpServers": {
"ledgerhq-copilot": {
"type": "sse",
"url": "https://api.ledgerhq.uk/functions/v1/mcp-server/sse",
"headers": {
"Authorization": "Bearer lhq_live_...",
"X-LedgerHQ-Client": "Microsoft Copilot"
}
}
}
}{
"mcpServers": {
"ledgerhq-practice-os": {
"url": "https://api.ledgerhq.uk/functions/v1/mcp-server/sse",
"headers": {
"Authorization": "Bearer lhq_live_...",
"X-LedgerHQ-Client": "Claude Cowork"
}
}
}
}{
"openapi": "3.1.0",
"info": {
"title": "LedgerHQ Practice OS",
"version": "1.0.0"
},
"servers": [
{ "url": "https://api.ledgerhq.uk/functions/v1/agent-gateway" }
]
}Open Standard Compatibility
Connect the AI Assistant Your Practice Already Uses
LedgerHQ supports any assistant or automation tool that follows the open Model Context Protocol (MCP) standard.
Microsoft Copilot
Connect Copilot Studio custom assistants or Microsoft 365 Copilot directly to your practice ledger via standard MCP endpoints.
Claude Cowork & Desktop
Connect Claude Desktop and Claude Cowork for year-end lead schedule audits, statutory note reviews, and complex tax research.
OpenAI ChatGPT
Integrate ChatGPT Team, Enterprise, or Custom GPTs to draft client queries, summarise obligations, and assist in daily bookkeeping.
Universal MCP Standard
Fully compatible with any assistant, internal script, or tool that follows the open Model Context Protocol (MCP) standard.
The Non-Negotiable Human-in-the-Loop Safeguard
How LedgerHQ Governs Autonomous AI Agents
AI agents can read contextual ledgers and compute complex year-end reconciliations, but write tools are strictly quarantined into a staging queue until approved by a qualified practitioner.
1. Authoritative Context Ingestion
Your connected AI harness queries standard MCP resources (e.g. ledgerhq://clients, VAT obligation windows, bank transaction streams, and lead schedules).
2. Deterministic Server Validation
The agent proposes an adjusting journal or VAT draft. LedgerHQ validates that debits equal credits (∑Debits = ∑Credits) and verifies tax rules before accepting the proposal into the staging queue.
3. 1-Click Practitioner Sign-Off
In the Staging Radar UI, the accountant inspects the visual diff, reviews the agent’s natural language forensic reasoning, and clicks Approve & Post to Live Ledger.
Security Architecture & Governance
Enterprise Cryptographic Rigour Built-In
Cryptographically Hashed Machine Tokens
Agent access tokens are one-way hashed and never stored in plaintext on our servers. Credentials can be revoked instantaneously with a single click.
Granular Least-Privilege Scoping
Restrict each AI harness to explicit practice-defined permissions (such as reading deadlines or staging journals). Agents cannot exceed their granted authority.
Tenant-Isolated Database Boundaries
All queries and staged actions are strictly quarantined to your practice. Cross-firm data leakage is prevented at the database level to ensure complete client confidentiality.
Statutory 6-Year Immutable Audit Trail
Every data access, agent proposal, and accountant sign-off is permanently recorded in an append-only log for ICAEW, ACCA, and HMRC compliance audits.
The Open Standard Specification
Exposed MCP Resources & Governed Tools
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