About
MCP Server for Turkish GIB e-Fatura system integration
README
Türkiye Gelir İdaresi Başkanlığı (GİB) e-Arşiv Fatura sistemi ile entegrasyon sağlayan MCP sunucusu.
📝 Read the full story on Medium (Turkish)
English
Features
- 📋 List and search e-Invoices
- 🔍 Get invoice details and XML
- ✏️ Create and cancel invoices
- ✅ Validate Turkish tax numbers (VKN/TCKN)
- 🎭 Demo mode - Test without real credentials
- 🔒 Production ready - Auto-switching between demo and real API
Quick Start
1. Install
git clone https://github.com/reyhansunduk/efatura-mcp-server.git
cd efatura-mcp-server
pip install -e .
2. Demo Mode (No credentials needed)
The server works immediately with mock data:
python -m efatura_mcp.server
For test: ⚠️ DEMO MODE: Using mock data
3. Use with Claude Desktop
Create config file:
- Windows:
%APPDATA%\Claude\claude_desktop_config.json - macOS:
~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"efatura": {
"command": "python",
"args": ["-m", "efatura_mcp.server"],
"cwd": "C:\\path\\to\\efatura-mcp-server"
}
}
}
4. Test in Claude Desktop
Ask Claude:
List invoices
You should see 5 demo invoices!
Switch to Real GİB API
When ready to use real data:
- Edit
.envfile:
GIB_USERNAME=your_vkn_here
GIB_PASSWORD=your_password_here
GIB_ENVIRONMENT=test
- Restart the server
The server automatically switches to real API when credentials are provided.
Available MCP Tools
The server provides 7 MCP tools that Claude can use:
1. list_invoices
List e-Fatura invoices from GIB system.
Parameters:
start_date(optional): Start date (YYYY-MM-DD)end_date(optional): End date (YYYY-MM-DD)limit(optional): Max invoices to return (default: 10)
Example: "Show me invoices from last month"
2. get_invoice_detail
Get detailed information for a specific invoice.
Parameters:
invoice_id(required): Invoice ID/UUID
Example: "Show details for invoice ABC2024000001"
3. get_invoice_xml
Get invoice HTML/XML content in UBL-TR format.
Parameters:
invoice_id(required): Invoice ID/UUID
Example: "Get XML for invoice ABC2024000001"
4. create_invoice
Create new e-Fatura invoice in GIB system.
Parameters:
invoice_number,issue_date,supplier_vkn,supplier_namecustomer_vkn,customer_name,items[],total_amountcurrency(optional, default: TRY)
Example: "Create invoice for 1000 TRY to customer XYZ"
5. cancel_invoice
Cancel an existing invoice.
Parameters:
invoice_id(required): Invoice ID to cancelreason(required): Cancellation reason
Example: "Cancel invoice ABC2024000001 due to error"
6. search_invoices
Search invoices with filters.
Parameters:
customer_name,supplier_name(optional)min_amount,max_amount(optional)status(optional): approved, pending, cancelled
Example: "Find invoices over 10000 TRY", "Show pending invoices"
7. validate_tax_number
Validate Turkish tax number (VKN/TCKN).
Parameters:
tax_number(required): 10 or 11 digit tax number
Example: "Validate tax number 1234567890"
Getting GİB Credentials
Get Credentials: Use your company's existing e-Fatura credentials
- Portal: https://earsivportal.efatura.gov.tr (production)
- Test Portal: https://earsivportaltest.efatura.gov.tr (test)
Project Structure
efatura-mcp-server/
├── src/
│ └── efatura_mcp/
│ ├── server.py # Main MCP server
│ ├── gib_earsiv_client.py # Real GİB API client
│ └── mock_data.py # Demo data
├── .env # Credentials (gitignored)
├── .env.example # Template
└── README.md
See SECURITY.md for complete guidelines.
Requirements
- Python 3.10+
- Claude Desktop (or any MCP client)
Dependencies are auto-installed with pip install -e .
License
MIT
Türkçe
Özellikler
- 📋 e-Faturaları listele ve ara
- 🔍 Fatura detayları ve XML al
- ✏️ Fatura oluştur ve iptal et
- ✅ Vergi numarası doğrula (VKN/TCKN)
- 🎭 Demo modu - Gerçek credentials olmadan test et
- 🔒 Production hazır - Demo ve gerçek API arası otomatik geçiş
Hızlı Başlangıç
1. Kurulum
git clone https://github.com/reyhansunduk/efatura-mcp-server.git
cd efatura-mcp-server
pip install -e .
2. Demo Modu (Credential gerekmez)
Sunucu hemen mock data ile çalışır:
python -m efatura_mcp.server
Test için: ⚠️ DEMO MODE: Using mock data
3. Claude Desktop ile Kullan
Config dosyası oluştur:
- Windows:
%APPDATA%\Claude\claude_desktop_config.json - macOS:
~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"efatura": {
"command": "python",
"args": ["-m", "efatura_mcp.server"],
"cwd": "C:\\Users\\..\\efatura-mcp-server"
}
}
}
4. Claude Desktop'ta Test Et
Claude'a sor:
Faturaları listele
Faturalar listelenecektir.
Gerçek GİB API'ye Geç
Gerçek veri kullanmaya hazır olduğunda:
.envdosyasını düzenle:
GIB_USERNAME=vkn_buraya
GIB_PASSWORD=sifre_buraya
GIB_ENVIRONMENT=test
- Sunucuyu yeniden başlat
Sunucu credentials verildiğinde otomatik olarak gerçek API'ye geçer.
Mevcut MCP Araçları
Sunucu Claude'un kullanabileceği 7 MCP aracı sağlar:
1. list_invoices
GİB sisteminden e-Faturaları listeler.
Parametreler:
start_date(opsiyonel): Başlangıç tarihi (YYYY-MM-DD)end_date(opsiyonel): Bitiş tarihi (YYYY-MM-DD)limit(opsiyonel): Max fatura sayısı (varsayılan: 10)
Örnek: "Geçen ayki faturaları göster"
2. get_invoice_detail
Belirli bir faturanın detaylı bilgilerini getirir.
Parametreler:
invoice_id(zorunlu): Fatura ID/UUID
Örnek: "ABC2024000001 faturasının detaylarını göster"
3. get_invoice_xml
Fatura HTML/XML içeriğini UBL-TR formatında getirir.
Parametreler:
invoice_id(zorunlu): Fatura ID/UUID
Örnek: "ABC2024000001 faturasının XML'ini getir"
4. create_invoice
GİB sisteminde yeni e-Fatura oluşturur.
Parametreler:
invoice_number,issue_date,supplier_vkn,supplier_namecustomer_vkn,customer_name,items[],total_amountcurrency(opsiyonel, varsayılan: TRY)
Örnek: "XYZ müşterisine 1000 TRY fatura oluştur"
5. cancel_invoice
Mevcut faturayı iptal eder.
Parametreler:
invoice_id(zorunlu): İptal edilecek fatura IDreason(zorunlu): İptal sebebi
Örnek: "ABC2024000001 faturasını hata nedeniyle iptal et"
6. search_invoices
Filtrelerle fatura ara.
Parametreler:
customer_name,supplier_name(opsiyonel)min_amount,max_amount(opsiyonel)status(opsiyonel): approved, pending, cancelled
Örnek: "10000 TL üzeri faturaları bul", "Beklemedeki faturaları göster"
7. validate_tax_number
Türk vergi numarasını doğrula (VKN/TCKN).
Parametreler:
tax_number(zorunlu): 10 veya 11 haneli vergi numarası
Örnek: "1234567890 vergi numarasını doğrula"
GİB Credentials Nasıl Alınır
Nasıl Yapılır: Şirketinin mevcut e-Fatura credentials'ını kullan
- Portal: https://earsivportal.efatura.gov.tr (canlı)
- Test Portal: https://earsivportaltest.efatura.gov.tr (test)
Proje Yapısı
efatura-mcp-server/
├── src/
│ └── efatura_mcp/
│ ├── server.py # Ana MCP sunucu
│ ├── gib_earsiv_client.py # Gerçek GİB API client
│ └── mock_data.py # Demo verisi
├── .env # credentials'ın (gitignored)
├── .env.example # Şablon
└── README.md
Tam rehber için SECURITY.md'ye bak.
Gereksinimler
- Python 3.10+
- Claude Desktop (veya herhangi bir MCP client)
Bağımlılıklar pip install -e . ile otomatik kurulur.
Lisans
MIT
Support / Destek
For issues and questions, please open an issue on GitHub.
Sorunlar ve sorular için lütfen GitHub'da bir issue açın.
Installing Efatura
This server has no published package — it is built from source. Open the repository and follow its README.
▸ github.com/reyhansunduk/efatura-mcp-serverFAQ
Is Efatura MCP free?
Yes, Efatura MCP is free — one-click install via Unyly at no cost.
Does Efatura need an API key?
No, Efatura runs without API keys or environment variables.
Is Efatura hosted or self-hosted?
Self-hosted: the server runs locally on your machine via the install command above.
How do I install Efatura in Claude Desktop, Claude Code or Cursor?
Open Efatura on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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