> ## Documentation Index
> Fetch the complete documentation index at: https://docs.idem.finance/llms.txt
> Use this file to discover all available pages before exploring further.

# Idem Ledger API: Double-Entry Ledger for Stablecoin Payments

> The Idem Ledger API lets you post double-entry transactions, track stablecoin settlements on-chain, and export compliance-grade audit logs — all through a single REST API.

The Idem Ledger API is a financial-grade double-entry bookkeeping system built for stablecoin payments. Every transaction is balanced across journal lines (debits equal credits), on-chain settlement events are matched automatically, and every action is captured in a tamper-evident audit log you can export at any time.

<CardGroup cols={2}>
  <Card title="Introduction" icon="book-open" href="/introduction">
    Learn what the Idem Ledger API is and how it fits your payment stack.
  </Card>

  <Card title="Quickstart" icon="rocket" href="/quickstart">
    Make your first authenticated API call in minutes.
  </Card>

  <Card title="Authentication" icon="key" href="/authentication">
    Create API keys and understand scopes and authorization.
  </Card>

  <Card title="API Reference" icon="code" href="/api-reference/accounts/list-accounts">
    Full reference for every endpoint, parameter, and response.
  </Card>
</CardGroup>

## Key capabilities

<CardGroup cols={3}>
  <Card title="Double-Entry Ledger" icon="scale-balanced" href="/concepts/double-entry">
    Every transaction enforces debit/credit balance per currency.
  </Card>

  <Card title="Stablecoin Settlements" icon="link" href="/concepts/settlements">
    Watch for on-chain transfers and auto-match against expectations.
  </Card>

  <Card title="Compliance Exports" icon="file-export" href="/guides/compliance">
    Stream NDJSON audit logs for any time window.
  </Card>

  <Card title="Fine-Grained Scopes" icon="shield-halved" href="/concepts/scopes">
    Issue API keys with only the permissions each integration needs.
  </Card>

  <Card title="Webhooks" icon="webhook" href="/guides/webhooks">
    Receive real-time event notifications to your endpoint.
  </Card>

  <Card title="Agent Policy Rules" icon="robot" href="/guides/policy-rules">
    Control what automated agents are permitted to do.
  </Card>

  <Card title="MCP Tools" icon="plug" href="/guides/mcp-tools">
    Connect AI agents to post, query, and reconcile through MCP.
  </Card>
</CardGroup>

## Example implementations

<CardGroup cols={1}>
  <Card title="Code Examples" icon="github" href="https://github.com/idem-finance/idem-examples">
    Kotlin reference implementations covering most Idem features, including the MCP client.
  </Card>
</CardGroup>

## Get started in three steps

<Steps>
  <Step title="Get your API key">
    Contact Idem to provision your tenant and receive an admin API key. See [Authentication](/authentication) for details.
  </Step>

  <Step title="Create accounts">
    Set up your chart of accounts — assets, liabilities, revenues, and expenses. See [Accounts](/concepts/accounts).
  </Step>

  <Step title="Post your first transaction">
    Post a balanced double-entry transaction and verify the journal entries. See the [Quickstart](/quickstart).
  </Step>
</Steps>