New: MCP Interface

IBANTEST for AI Agents

Connect your AI assistant directly to the IBANTEST API via the Model Context Protocol (MCP) – for automatic IBAN validation, IBAN calculation and bank data queries.

Quick Start What is MCP?

What is the Model Context Protocol (MCP)?

Simply explained: MCP is an open standard that enables AI assistants to communicate directly with external services and data sources – similar to how USB provides a universal connector for devices, MCP creates a universal interface between AI and data.

The Model Context Protocol (MCP) was developed by Anthropic as an open standard and is now supported across the industry. It allows AI models and agents to access external tools and data sources in a structured way – securely, standardised, and in real time.

How MCP works

AI Agent

Cursor, Claude, ChatGPT or your own agent makes a request

MCP Protocol

Standardised JSON-RPC communication via HTTP or STDIO

IBANTEST API

Validates IBANs, calculates IBANs, provides bank data

With MCP, developers no longer need to build custom API integrations. The AI agent automatically discovers which tools the IBANTEST MCP server provides and can call them independently.

Why use IBANTEST via MCP?

AI-native integration

Your AI agent uses IBAN validation and bank data directly – without manual code or API calls.

Real-time bank data

Up-to-date bank codes, BIC codes and IBAN validations directly from our database.

Secure & controlled

Token-based authentication on every call. No token is stored in the session.

Multi-country support

IBAN calculation for DE, AT, BE, CZ, ES, IT, LI, LU, MC and NL.

What can an AI agent do with IBANTEST MCP?

Example prompt: “Check whether the IBAN DE89 3704 0044 0532 0130 00 is valid and show me the associated bank data.”
The AI agent automatically calls iban_validate and presents the result.

Validate IBANs

Verify IBANs for validity including check digit, length and bank data

Calculate IBANs

Generate IBANs from bank code and account number

Look up bank data

Validate BIC codes or find banks by country code and bank code

Available MCP tools

The IBANTEST MCP server provides the following tools that AI agents can automatically discover and use:

Tool	Description	Parameters
`iban_validate`	Validate IBAN and retrieve bank data	`iban`
`iban_calculate_de`	Calculate German IBAN	`bankCode`, `account`
`iban_calculate_at`	Calculate Austrian IBAN	`bankCode`, `account`
`iban_calculate_be`	Calculate Belgian IBAN	`bankCode`, `account`, `checkDigits`
`iban_calculate_cz`	Calculate Czech IBAN	`bankCode`, `account`, `prefix` (optional)
`iban_calculate_es`	Calculate Spanish IBAN	`bankCode`, `branch`, `account`
`iban_calculate_it`	Calculate Italian IBAN	`cin`, `abi`, `cab`, `account`
`iban_calculate_li`	Calculate Liechtenstein IBAN	`bankCode`, `account`
`iban_calculate_lu`	Calculate Luxembourg IBAN	`bankCode`, `account`
`iban_calculate_mc`	Calculate Monaco IBAN	`bankCode`, `branch`, `account`
`iban_calculate_nl`	Calculate Dutch IBAN	`bankCode`, `account`
`bank_validate_bic`	Validate BIC/SWIFT code	`bic`
`bank_find`	Find bank by country code and bank code	`country`, `bankCode`
`account_get_credits`	Query remaining credits	—

Every tool call additionally requires a token parameter for authentication. You will receive this after free registration.

Quick start: Set up IBANTEST MCP

Ready in under 5 minutes! All you need is a free IBANTEST account and an MCP-compatible client.

1 Create an IBANTEST account

2 Configure your MCP client

Add the IBANTEST MCP server in your preferred tool:

File: .cursor/mcp.json in your project

{
  "mcpServers": {
    "ibantest": {
      "url": "https://api.ibantest.com/mcp"
    }
  }
}

Claude Desktop configuration:

{
  "mcpServers": {
    "ibantest": {
      "url": "https://api.ibantest.com/mcp"
    }
  }
}

Direct HTTP access to the MCP endpoint:

POST https://api.ibantest.com/mcp
Content-Type: application/json
Accept: application/json

3 Start using it!

Your AI agent automatically discovers the available IBANTEST tools. Simply ask questions like:

“Validate the IBAN DE89370400440532013000”
“Calculate the IBAN for bank code 50010517 and account 1234567890”
“Find the bank with BIC DEUTDEFF”

Technical details: HTTP workflow

For custom integrations, the MCP HTTP workflow follows a simple pattern:

1. Initialise session

{
  "jsonrpc": "2.0",
  "id": "init-1",
  "method": "initialize",
  "params": {
    "protocolVersion": "2024-11-05",
    "capabilities": {},
    "clientInfo": { "name": "my-agent", "version": "1.0.0" }
  }
}

Use the Mcp-Session-Id from the response for all subsequent calls.

2. Call a tool (example: validate IBAN)

{
  "jsonrpc": "2.0",
  "id": "call-1",
  "method": "tools/call",
  "params": {
    "name": "iban_validate",
    "arguments": {
      "token": "YOUR_API_TOKEN",
      "iban": "DE89 3704 0044 0532 0130 00"
    }
  }
}

3. Close session

DELETE https://api.ibantest.com/mcp
Header: Mcp-Session-Id: <SESSION_ID>

Compatible MCP clients

Cursor IDE

Native MCP support for IBAN operations directly in the IDE

Claude Desktop

Use the MCP server directly in the Claude Desktop app

Custom agents

Integrate via HTTP transport into any MCP-compatible client

API / Developer

Developer REST API / PHP Client Wordpress / WooCommerce AI / MCP Interface

MCP at a Glance

14 available tools
IBAN validation & calculation
Optimised for AI agents
HTTP & STDIO transport

Why IBANTEST via MCP?

Four reasons why the MCP interface revolutionises your AI workflows

Open Standard

MCP is an industry-wide supported standard – no proprietary interfaces.

Real-time Data

Up-to-date bank data, IBAN validations and BIC search in real time.

Secure & Controlled

Token-based authentication on every single call.

Easy Integration

Set up in under 5 minutes – for Cursor, Claude and other MCP clients.