Thai Law MCP Server

The Royal Gazette (ราชกิจจานุเบกษา) alternative for the AI age.

สืบค้น 517 กฎหมายไทย -- ตั้งแต่ พ.ร.บ.คุ้มครองข้อมูลส่วนบุคคล (PDPA) และประมวลกฎหมายอาญา ไปจนถึงประมวลกฎหมายแพ่งและพาณิชย์ กฎหมายแรงงาน และอื่น ๆ -- โดยตรงจาก Claude, Cursor หรือไคลเอนต์ที่รองรับ MCP

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

Built by Ansvar Systems -- Stockholm, Sweden

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Why This Exists

Thai legal research is scattered across ratchakitchanubeksa.go.th, krisdika.go.th, and dopa.go.th, with many laws published only in Thai and requiring navigation of multiple government portals. Whether you're:

• A lawyer validating citations in a brief or contract
• A compliance officer checking PDPA obligations or Cybersecurity Act requirements
• A legal tech developer building tools on Thai law
• A researcher tracing Thai legislation across 517 Acts

...you shouldn't need dozens of browser tabs and manual cross-referencing across Thai-language government portals. Ask Claude. Get the exact provision. With context.

This MCP server makes Thai law searchable, cross-referenceable, and AI-readable in both Thai and English.

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Quick Start

Use Remotely (No Install Needed)

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

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

Client	How to Connect
Claude.ai	Settings > Connectors > Add Integration > paste URL
Claude Code	claude mcp add thailand-law --transport http https://thailand-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": {
    "thailand-law": {
      "type": "url",
      "url": "https://thailand-law-mcp.vercel.app/mcp"
    }
  }
}

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

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

Use Locally (npm)

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

Cursor / VS Code:

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

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Example Queries

Once connected, just ask naturally:

• "ค้นหา 'พระราชบัญญัติคุ้มครองข้อมูลส่วนบุคคล' (PDPA) มาตราที่เกี่ยวกับความยินยอม"
• "ประมวลกฎหมายอาญา มาตรา 276 ว่าด้วยอะไร?"
• "ค้นหากฎหมายแรงงานเกี่ยวกับการเลิกจ้าง"
• "ประมวลกฎหมายแพ่งและพาณิชย์ ว่าด้วยสัญญาซื้อขาย"
• "What are the data breach notification requirements under the PDPA?"
• "Is the Computer Crime Act still in force?"
• "Find provisions about electronic transactions in Thai law"
• "What ASEAN frameworks does Thailand's Cybersecurity Act align with?"
• "Validate the citation: พ.ร.บ.คุ้มครองข้อมูลส่วนบุคคล พ.ศ. 2562, มาตรา 37"
• "Build a legal stance on personal data processing obligations in Thailand"

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What's Included

Category	Count	Details
Acts	517 laws	Comprehensive Thai legislation
Provisions	18,184 sections	Full-text searchable with FTS5
Database Size	~45 MB	Optimized SQLite, portable
Languages	Thai and English	Bilingual coverage where available
Freshness Checks	Automated	Drift detection against Krisdika

Key Laws Included

Law	Thai Name
Personal Data Protection Act (PDPA)	พ.ร.บ.คุ้มครองข้อมูลส่วนบุคคล พ.ศ. 2562
Cybersecurity Act	พ.ร.บ.การรักษาความมั่นคงปลอดภัยไซเบอร์ พ.ศ. 2562
Computer Crime Act	พ.ร.บ.ว่าด้วยการกระทำความผิดเกี่ยวกับคอมพิวเตอร์ พ.ศ. 2550
Electronic Transactions Act	พ.ร.บ.ว่าด้วยธุรกรรมทางอิเล็กทรอนิกส์ พ.ศ. 2544
Civil and Commercial Code	ประมวลกฎหมายแพ่งและพาณิชย์
Criminal Code	ประมวลกฎหมายอาญา
Labour Protection Act	พ.ร.บ.คุ้มครองแรงงาน พ.ศ. 2541

Verified data only -- every citation is validated against official sources (krisdika.go.th, ratchakitchanubeksa.go.th). Zero LLM-generated content.

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Why This Works

Verbatim Source Text (No LLM Processing):

• All statute text is ingested from krisdika.go.th and ratchakitchanubeksa.go.th official sources
• Provisions are returned unchanged from SQLite FTS5 database rows
• Zero LLM summarization or paraphrasing -- the database contains law text, not AI interpretations

Smart Context Management:

• Search returns ranked provisions with BM25 scoring (safe for context)
• Provision retrieval gives exact text by Act identifier + chapter/section
• Cross-references help navigate without loading everything at once

Technical Architecture:

Krisdika / Royal Gazette --> Parse --> SQLite --> FTS5 snippet() --> MCP response
                                ^                        ^
                         Provision parser         Verbatim database query

Traditional Research vs. This MCP

Traditional Approach	This MCP Server
Search Krisdika by Act title in Thai	Search in Thai or English: "คุ้มครองข้อมูลส่วนบุคคล"
Navigate multi-chapter laws manually	Get the exact provision with context
Manual cross-referencing between laws	build_legal_stance aggregates across sources
"Is this law still in force?" -- check manually	check_currency tool -- answer in seconds
Find ASEAN/WTO basis -- dig through treaty databases	get_eu_basis -- linked international frameworks instantly
No API, no integration	MCP protocol -- AI-native

Traditional: Search ratchakitchanubeksa.go.th --> Find PDF in Thai --> Search manually --> Cross-reference another Act --> Check ASEAN frameworks separately --> Repeat

This MCP: "What are the consent requirements under Thailand's PDPA and how do they compare to international data protection standards?" --> Done.

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Available Tools (13)

Core Legal Research Tools (8)

Tool	Description
search_legislation	FTS5 full-text search across 18,184 provisions with BM25 ranking. Supports Thai and English queries
get_provision	Retrieve specific provision by Act identifier + chapter/section (มาตรา)
check_currency	Check if a law is in force, amended, or repealed
validate_citation	Validate citation against database -- zero-hallucination check
build_legal_stance	Aggregate citations from multiple laws for a legal topic
format_citation	Format citations per Thai conventions (full/short/pinpoint)
list_sources	List all available laws with metadata, coverage scope, and data provenance
about	Server info, capabilities, dataset statistics, and coverage summary

International Law Integration Tools (5)

Tool	Description
get_eu_basis	Get international frameworks (ASEAN, WTO, APEC) that a Thai law aligns with
get_thai_implementations	Find Thai laws implementing a specific international instrument
search_eu_implementations	Search international documents with Thai implementation counts
get_provision_eu_basis	Get international law references for a specific provision
validate_eu_compliance	Check alignment status of Thai laws against international frameworks

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International Law Alignment

Thailand is not an EU member state. Thai law aligns with international frameworks through:

• ASEAN framework -- Thailand is a founding ASEAN member; laws on digital economy, data protection (PDPA), and trade align with ASEAN frameworks
• WTO membership -- Trade and intellectual property law follows WTO commitments (TRIPS, GATS)
• APEC -- Thailand participates in APEC Cross-Border Privacy Rules (CBPR)
• UNCITRAL -- Electronic transactions law follows UNCITRAL Model Law on Electronic Commerce
• สภาทนายความแห่งประเทศไทย (Lawyers Council of Thailand) -- Professional legal practice regulated by the Lawyers Council of Thailand

The international bridge tools allow you to explore these alignment relationships -- checking which Thai provisions correspond to ASEAN or WTO requirements, and vice versa.

Note: International cross-references reflect alignment and treaty obligation relationships. Thailand adopts its own legislative approach, and the tools help identify where Thai and international law address the same domains.

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Data Sources & Freshness

All content is sourced from authoritative Thai legal databases:

• Krisdika -- Council of State's official consolidated law database
• Royal Gazette (ราชกิจจานุเบกษา) -- Official gazette, primary source for enacted legislation
• DOPA -- Department of Provincial Administration legal references

Data Provenance

Field	Value
Authority	Council of State of Thailand (Krisdika)
Languages	Thai (primary), English translations for key Acts
Coverage	517 laws across all legislative areas
Last ingested	2026-02-28

Automated Freshness Checks

A GitHub Actions workflow monitors all data sources:

Check	Method
Law amendments	Drift detection against known provision anchors
New laws	Comparison against Krisdika index
Repealed laws	Status change detection

Verified data only -- every citation is validated against official sources. Zero LLM-generated content.

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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
Socket.dev	Supply chain attack detection	PRs
Dependabot	Automated dependency updates	Weekly

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

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Important Disclaimers

Legal Advice

THIS TOOL IS NOT LEGAL ADVICE

Statute text is sourced from Krisdika (Council of State) and the Royal Gazette. However:

• This is a research tool, not a substitute for professional legal counsel
• Court case coverage is not included -- do not rely solely on this for case law research
• Verify critical citations against primary sources (krisdika.go.th) for official proceedings
• International cross-references reflect alignment relationships, not formal transposition
• English translations are provided for reference; the authoritative text is in Thai
• For professional legal advice in Thailand, consult a member of the สภาทนายความแห่งประเทศไทย (Lawyers Council of Thailand)

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

Client Confidentiality

Queries go through the Claude API. For privileged or confidential matters, use on-premise deployment.

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Development

Setup

git clone https://github.com/Ansvar-Systems/thailand-law-mcp
cd thailand-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 Management

npm run ingest              # Ingest laws from official sources
npm run build:db            # Rebuild SQLite database
npm run check-updates       # Check for amendments and new laws

Performance

• Search Speed: <100ms for most FTS5 queries
• Database Size: ~45 MB (efficient, portable)
• Reliability: 100% ingestion success rate

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Related Projects: Complete Compliance Suite

This server is part of Ansvar's Compliance Suite -- MCP servers that work together for end-to-end compliance coverage:

@ansvar/eu-regulations-mcp

Query 49 EU regulations directly from Claude -- GDPR, AI Act, DORA, NIS2, MiFID II, eIDAS, and more. Full regulatory text with article-level search. npx @ansvar/eu-regulations-mcp

@ansvar/security-controls-mcp

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

@ansvar/sanctions-mcp

Offline-capable sanctions screening -- OFAC, EU, UN sanctions lists. pip install ansvar-sanctions-mcp

70+ national law MCPs covering Australia, Brazil, Canada, China, Denmark, Finland, France, Germany, Ghana, Iceland, India, Ireland, Israel, Italy, Japan, Kenya, Netherlands, Nigeria, Norway, Singapore, Slovenia, South Korea, Sweden, Switzerland, Thailand, UAE, UK, and more.

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Contributing

Contributions welcome! See CONTRIBUTING.md for guidelines.

Priority areas:

• Expanded Thai-language provision coverage and English translations
• Court case law (Supreme Court / Dika Court decisions)
• Historical law versions and amendment tracking
• Sub-legislation (ministerial regulations, notifications)

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Roadmap

• Core law database with FTS5 search
• Full corpus ingestion (517 laws, 18,184 provisions)
• International law alignment tools (ASEAN, WTO, APEC)
• Vercel Streamable HTTP deployment
• npm package publication
• Court case law expansion (Dika Court)
• Expanded English translations for key Acts
• Historical law versions (amendment tracking)
• Sub-legislation coverage (ministerial regulations)

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Citation

If you use this MCP server in academic research:

@software{thailand_law_mcp_2026,
  author = {Ansvar Systems AB},
  title = {Thai Law MCP Server: AI-Powered Legal Research Tool},
  year = {2026},
  url = {https://github.com/Ansvar-Systems/thailand-law-mcp},
  note = {517 Thai laws with 18,184 provisions including PDPA, Criminal Code, and Civil and Commercial Code}
}

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License

Apache License 2.0. See LICENSE for details.

Data Licenses

• Statutes & Legislation: Council of State of Thailand / Royal Gazette (public domain)
• International References: ASEAN, WTO, APEC (public domain)

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About Ansvar Systems

We build AI-accelerated compliance and legal research tools for the global market. This MCP server started as our internal reference tool for Thai legal research -- turns out everyone building compliance tools for the Thai market has the same research frustrations.

So we're open-sourcing it. Navigating 517 Thai laws across Krisdika and the Royal Gazette shouldn't require hours of manual searching.

ansvar.eu -- Stockholm, Sweden

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_{Built with care in Stockholm, Sweden}