Indonesian Law MCP Server

The peraturan.go.id alternative for the AI age.

Query 1,924 Indonesian Undang-Undang (laws) -- from the PDP Law and ITE Law to the Constitution and Company Law -- directly from Claude, Cursor, or any MCP-compatible client.

If you're building legal tech, compliance tools, or doing Indonesian legal research, this is your verified reference database.

Built by Ansvar Systems -- Stockholm, Sweden

Why This Exists

Indonesian legal research is scattered across peraturan.go.id, peraturan.bpk.go.id, JDIH Nasional, and individual ministry databases. Whether you're:

• A compliance officer checking PDP Law (data protection) obligations
• A legal tech developer building tools on Indonesian law
• A lawyer validating ITE Law provisions for e-commerce compliance
• A researcher analysing ASEAN data protection frameworks

...you shouldn't need to parse government PDFs and navigate fragmented databases. Ask Claude. Get the exact provision. With context.

This MCP server makes Indonesian law searchable, cross-referenceable, and AI-readable.

Quick Start

Use Remotely (No Install Needed)

Connect directly to the hosted version -- zero dependencies, nothing to install.

Endpoint: https://indonesian-law-mcp.vercel.app/mcp

| Client | How to Connect | |--------|---------------| | Claude.ai | Settings > Connectors > Add Integration > paste URL | | Claude Code | claude mcp add indonesian-law --transport http https://indonesian-law-mcp.vercel.app/mcp | | Claude Desktop | Add to config (see below) | | GitHub Copilot | Add to VS Code settings (see below) |

Claude Desktop -- add to claude_desktop_config.json:

{
  "mcpServers": {
    "indonesian-law": {
      "type": "url",
      "url": "https://indonesian-law-mcp.vercel.app/mcp"
    }
  }
}

GitHub Copilot -- add to VS Code settings.json:

{
  "github.copilot.chat.mcp.servers": {
    "indonesian-law": {
      "type": "http",
      "url": "https://indonesian-law-mcp.vercel.app/mcp"
    }
  }
}

Use Locally (npm)

npx @ansvar/indonesian-law-mcp

Claude Desktop -- add to claude_desktop_config.json:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "indonesian-law": {
      "command": "npx",
      "args": ["-y", "@ansvar/indonesian-law-mcp"]
    }
  }
}

Cursor / VS Code:

{
  "mcp.servers": {
    "indonesian-law": {
      "command": "npx",
      "args": ["-y", "@ansvar/indonesian-law-mcp"]
    }
  }
}

Example Queries

Once connected, just ask naturally:

• "What does Pasal 1 of UU PDP (UU 27/2022) define as personal data?"
• "Find provisions about transaksi elektronik in Indonesian law"
• "What are the data controller obligations in the PDP Law?"
• "Is UU 11/2008 (ITE Law) still in force?"
• "Find consumer protection provisions in Indonesian law"
• "What does UU 36/1999 say about telecommunications?"
• "Search for 'transfer dana' in Indonesian legislation"

What's Included

| Category | Count | Details | |----------|-------|---------| | Laws (Undang-Undang) | 1,924 | Full census of Indonesian national legislation | | Provisions (Pasal) | 2,225 | Full-text searchable with FTS5 | | Legal Definitions | 65 | Extracted from Pasal 1 (Ketentuan Umum) | | Full-text Laws | 8 | PDP, ITE, Company, Consumer Protection, Telecom, Trade, Fund Transfer | | Metadata-only Laws | 1,916 | Title, year, number, status, source URL | | Database Size | ~2.1 MB | Optimized SQLite, portable | | Coverage Period | 1946--2026 | 80 years of Indonesian legislation |

Verified data only -- every law is enumerated from peraturan.go.id (JDIH Nasional), with full text sourced from peraturan.bpk.go.id (BPK RI). Zero LLM-generated content.

Key Laws with Full Article Text

| Law | Articles | Description | |-----|----------|-------------| | UU 27/2022 (PDP Law) | 76 | Personal Data Protection -- Indonesia's GDPR equivalent | | UU 11/2008 (ITE Law) | 54 | Electronic Information and Transactions | | UU 36/1999 (Telecom) | 37 | Telecommunications | | UU 8/1999 (Consumer) | 36 | Consumer Protection | | UU 3/2011 (Fund Transfer) | 35 | Fund Transfer | | UU 7/2014 (Trade) | 32 | Trade | | UU 40/2007 (Company) | 26 | Limited Liability Companies (PT) | | UU 19/2016 (ITE Amdt) | 13 | ITE Law Amendment |

Available Tools (8)

Core Legal Research Tools

| Tool | Description | |------|-------------| | search_legislation | FTS5 search on 2,225 provisions with BM25 ranking | | get_provision | Retrieve specific provision by law identifier + Pasal number | | list_documents | List all 1,924 laws with status and metadata | | validate_citation | Validate citation against database (zero-hallucination check) | | check_currency | Check if statute is in force, amended, or repealed | | get_definitions | Get legal term definitions from Pasal 1 (Ketentuan Umum) | | format_citation | Format citations per Indonesian conventions | | build_legal_stance | Aggregate citations across multiple statutes |

EU Law Integration Tools (5)

| Tool | Description | |------|-------------| | get_eu_basis | Get EU directives/regulations referenced in Indonesian law | | get_indonesian_implementations | Find Indonesian laws implementing EU acts | | search_eu_implementations | Search EU documents with Indonesian implementation counts | | get_provision_eu_basis | Get EU references for specific provision | | validate_eu_compliance | Check implementation status |

Data Sources & Architecture

Census-First Full Corpus Ingestion

This MCP uses a census-first approach:

1. Census (scripts/census.ts): Enumerates all 1,924 Undang-Undang from peraturan.go.id paginated listing
2. Ingest (scripts/ingest.ts): For each law, fetches full text from BPK RI (when accessible), falls back to metadata-only seed
3. Build (scripts/build-db.ts): Compiles all seeds into optimized SQLite with FTS5

peraturan.go.id (census) --> peraturan.bpk.go.id (full text) --> SQLite + FTS5 --> MCP response
                                    |
                         geo-blocked? --> metadata-only seed

Sources

• peraturan.go.id -- JDIH Nasional (Ministry of Law and Human Rights). Canonical listing of all Indonesian legislation.
• peraturan.bpk.go.id -- BPK RI (Audit Board of the Republic of Indonesia). Full-text HTML of legislation with Pasal/Bab structure.

Data Coverage by Decade

| Decade | Laws | |--------|------| | 1940s | 113 | | 1950s | 421 | | 1960s | 191 | | 1970s | 82 | | 1980s | 101 | | 1990s | 185 | | 2000s | 367 | | 2010s | 216 | | 2020s | 248 |

Security

This project uses multiple layers of automated security scanning:

| Scanner | What It Does | Schedule | |---------|-------------|----------| | CodeQL | Static analysis for security vulnerabilities | Weekly + PRs | | Semgrep | SAST scanning (OWASP top 10, secrets, TypeScript) | Every push | | Gitleaks | Secret detection across git history | Every push | | Trivy | CVE scanning on filesystem and npm dependencies | Daily |

See SECURITY.md for the full policy and vulnerability reporting.

Important Disclaimers

Legal Advice

THIS TOOL IS NOT LEGAL ADVICE

Statute text is sourced from official Indonesian government databases. However:

• This is a research tool, not a substitute for professional legal counsel
• Full article text is available for 8 key laws only -- most laws have metadata only
• Verify critical citations against primary sources (peraturan.go.id or peraturan.bpk.go.id)
• Bahasa Indonesia is the legally binding language -- no English translations are official

Before using professionally, read: DISCLAIMER.md | PRIVACY.md

Client Confidentiality

Queries go through the Claude API. For privileged or confidential matters, use on-premise deployment. See PRIVACY.md for guidance.

Development

Setup

git clone https://github.com/Ansvar-Systems/indonesian-law-mcp
cd indonesian-law-mcp
npm install
npm run build
npm test

Running Locally

npm run dev                                       # Start MCP server
npx @anthropic/mcp-inspector node dist/index.js   # Test with MCP Inspector

Data Pipeline

npm run census                           # Enumerate all 1,924 laws from peraturan.go.id
npm run ingest                           # Fetch full text from BPK RI + generate seeds
npm run ingest -- --resume               # Resume (skip existing seed files)
npm run ingest -- --limit 10             # Test with first 10 laws
npm run build:db                         # Rebuild SQLite database from seeds
npm run check-updates                    # Check for new legislation

Pipeline Details

| Step | Script | Output | |------|--------|--------| | Census | scripts/census.ts | data/census.json (1,924 laws) | | Ingest | scripts/ingest.ts | data/seed/*.json (per-law JSON) | | Build | scripts/build-db.ts | data/database.db (2.1 MB SQLite) |

Performance

• Search Speed: <100ms for most FTS5 queries
• Database Size: ~2.1 MB (efficient, portable)
• Census: ~50 seconds for full corpus enumeration
• Ingestion: ~6 seconds with metadata-only fallback

Related Projects: Complete Compliance Suite

This server is part of Ansvar's Compliance Suite:

@ansvar/eu-regulations-mcp

Query 49 EU regulations directly from Claude -- GDPR, AI Act, DORA, NIS2, and more. npx @ansvar/eu-regulations-mcp

@ansvar/us-regulations-mcp

Query US federal and state compliance laws -- HIPAA, CCPA, SOX, and more. npx @ansvar/us-regulations-mcp

@ansvar/swedish-law-mcp

Query 2,415 Swedish statutes -- DSL, BrB, ABL, MB, and more. npx @ansvar/swedish-law-mcp

@ansvar/security-controls-mcp

Query 261 security frameworks -- SCF, ISO 27001, NIST CSF, SOC 2. npx @ansvar/security-controls-mcp

Contributing

Contributions welcome! Priority areas:

• Full-text expansion -- Additional BPK RI Detail IDs for more laws
• Peraturan Pemerintah (PP) -- Government regulations (implementing legislation)
• Peraturan Presiden (Perpres) -- Presidential regulations
• English translation alignment for key statutes
• Historical amendment tracking

Roadmap

• [x] Census-first full corpus -- 1,924 Undang-Undang enumerated from peraturan.go.id
• [x] Full text for key laws -- PDP, ITE, Company, Consumer, Telecom, Trade, Fund Transfer
• [ ] Full text expansion via BPK RI (from Indonesian IP access)
• [ ] Peraturan Pemerintah (PP) coverage
• [ ] Case law integration
• [ ] Daily freshness checks
• [ ] Premium tier with version tracking

Citation

If you use this MCP server in academic research:

@software{indonesian_law_mcp_2026,
  author = {Ansvar Systems AB},
  title = {Indonesian Law MCP Server: Census-First Legal Research Tool},
  year = {2026},
  url = {https://github.com/Ansvar-Systems/indonesian-law-mcp},
  note = {1,924 Indonesian Undang-Undang with full-text search}
}

License

Apache License 2.0. See LICENSE for details.

Data Licenses

• Legislation: Government Open Data (Republic of Indonesia)
• Source: peraturan.go.id (JDIH Nasional) + peraturan.bpk.go.id (BPK RI)

About Ansvar Systems

We build AI-accelerated compliance and legal research tools. This MCP server covers the Indonesian legal system -- the largest economy in ASEAN with 270M+ people and a rapidly evolving regulatory landscape.

ansvar.eu -- Stockholm, Sweden