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rkm7448
by rkm7448

Wise MCP Server

A MCP (Machine Communication Protocol) server that serves as a gateway for the Wise API, providing simplified access to Wise's recipient functionality.

Features

  • List all recipients from your Wise account via a simple MCP resource

  • Automatically handles authentication and profile selection

  • Uses the Wise Sandbox API for development and testing

  • Available as a Docker image for easy integration

Related MCP server: poke-bank

Requirements

  • Python 3.12 or higher (only if installing directly)

  • uv package manager (only if installing directly)

  • Wise API token

  • Docker (if using Docker image)

Get an API token

https://wise.com/your-account/integrations-and-tools/api-tokens

Create a new token here.

Installation

Option 1: Direct Installation

  1. Clone this repository:

    git clone repo-url
    cd jc-wise-mcp
  2. Set up the environment:

    cp .env.example .env
    # Edit .env to add your Wise API token
  3. Install dependencies with uv:

    uv venv
    uv pip install -e .

Option 2: Using Docker

You can build a Docker image:

docker build -t mcp-wise .

And add to Claude Code by adding it to your .mcp.json

{
  "mcpServers": {
    "mcp-wise": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "--init",
        "-e", "WISE_API_TOKEN=your_api_token_here",
        "-e", "WISE_IS_SANDBOX=true",
        "mcp-wise:latest"
      ]
    }
  }
}

Make sure to replace your_api_token_here with your actual Wise API token.

Make sure to also update your .mcp.json file to match your selected mode. We provide template files that you can use:

  1. For stdio mode (default):

    cp .mcp.json.stdio .mcp.json
  2. For HTTP mode:

    cp .mcp.json.http .mcp.json

These template files contain the appropriate configuration for each mode.

Available MCP Resources

The server provides the following MCP resources:

list_recipients

Returns a list of all recipients from your Wise account.

Parameters:

  • profile_type: The type of profile to list recipients for. One of [personal, business]. Default: "personal"

  • currency: Optional. Filter recipients by currency code (e.g., 'EUR', 'USD')

get_recipient_requirements

Fetches recipient requirements for creating a new recipient. If account details are provided, validates the account details against the requirements.

Parameters:

  • source_currency: The source currency code (e.g., 'USD')

  • target_currency: The target currency code (e.g., 'EUR')

  • source_amount: The amount in the source currency

  • profile_type: The type of profile to use. One of [personal, business]. Default: "personal"

  • account: Optional. The recipient account details to validate against requirements. If not provided, returns the initial account requirements.

create_recipient

Creates a new recipient with the provided account details.

Parameters:

  • profile_type: The type of profile to use. One of [personal, business]. Default: "personal"

  • account: The recipient account details compliant with Wise API requirements. This should include:

    • accountHolderName: Name of the account holder

    • currency: Target currency code (e.g., 'EUR')

    • type: Account type (e.g., 'iban', 'sort_code', etc.)

    • details: Object containing account-specific details (varies by currency and country)

send_money

Sends money to a recipient using the Wise API.

Parameters:

  • profile_type: The type of profile to use (personal or business)

  • source_currency: Source currency code (e.g., 'USD')

  • source_amount: Amount in source currency to send

  • recipient_id: The ID of the recipient to send money to

  • payment_reference: Optional. Reference message for the transfer (defaults to "money")

  • source_of_funds: Optional. Source of the funds (e.g., "salary", "savings")

Configuration

Configuration is done via environment variables, which can be set in the .env file:

  • WISE_API_TOKEN: Your Wise API token (required)

  • WISE_IS_SANDBOX: Set to true to use the Wise Sandbox API (default: false)

  • MODE: MCP Server transport mode, either "http" or "stdio" (default: stdio)

Development

Project Structure

wise-mcp/
├── .env                # Environment variables (not in git)
├── .env.example        # Example environment variables
├── pyproject.toml      # Project dependencies and configuration
├── README.md           # This file
└── src/                # Source code
    ├── main.py         # Entry point
    └── wise_mcp/       # Main package
        ├── api/        # API clients
        │   └── wise_client.py # Wise API client
        ├── resources/  # MCP resources
        │   └── recipients.py  # Recipients resource
        └── app.py      # MCP application setup

Adding New Features

To add new features:

  1. Add new API client methods in src/wise_mcp/api/wise_client.py

  2. Create new resources in src/wise_mcp/resources/

  3. Import and register the new resources in src/wise_mcp/app.py

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT

Available Tools

4 tools
create_recipientC

Creates a new recipient with the provided account details.

ParametersJSON Schema
NameRequiredDescriptionDefault
recipient_fullnameYesThe name of the account holder. Required.
currencyYesThe currency code for the recipient account. Required.
recipient_typeYesThe type of recipient account. Required.
profile_typeNoThe type of profile to use. One of [personal, business]. Default: "personal"personal
account_detailsNoAdditional recipient account details compliant with Wise API requirements. If provided, it will be updated with the required fields.

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

C2.9/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description bears full burden. It only says 'creates' (indicating mutation) but doesn't disclose side effects, idempotency, error conditions, or authentication needs.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single sentence is concise, but it may be too brief for a tool with 5 parameters and nested objects. Every word earns its place, but more structure would improve clarity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given 5 parameters, nested objects, and an output schema, the description is insufficient. It doesn't mention the output or provide context on how to properly construct the account_details object.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% with detailed descriptions for all 5 parameters. The description adds no additional meaning beyond stating 'with the provided account details,' which is already implied by the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states it creates a new recipient, which distinguishes it from sibling tools like list_recipients and get_recipient_requirements. However, it lacks nuance about what constitutes a 'recipient' in this context.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this tool versus alternatives. For example, it doesn't mention prerequisites like first calling get_recipient_requirements to determine required fields.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_recipient_requirementsA

Fetches recipient requirements for creating a new recipient. If account details are provided, validates the account details against the requirements.

ParametersJSON Schema
NameRequiredDescriptionDefault
source_currencyNoOptional. The source currency code (e.g., 'USD')
target_currencyNoOptional. The target currency code (e.g., 'EUR')
source_amountNoOptional. The amount in the source currency (e.g., 100.0)
profile_typeNoThe type of profile to use. One of [personal, business]. Default: "personal"personal
account_detailsNoOptional. The recipient account details to validate against requirements. If not provided, returns the initial account requirements.

Output Schema

ParametersJSON Schema
NameRequiredDescription

No output parameters

TDQS

A3.8/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries full burden. It discloses basic behavior (fetch and validate) but omits side effects, error conditions, or safety traits. No contradiction exists.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences, 24 words, front-loaded with purpose. No unnecessary words. Highly concise and well-structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given an output schema exists, the description covers core behavior. It could be improved by explicitly linking to 'create_recipient' as a prerequisite, but overall complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so baseline is 3. The description adds context that 'account_details' triggers validation, adding marginal value beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb ('fetches') and the resource ('recipient requirements'), and distinguishes itself from siblings like 'create_recipient' and 'send_money' by focusing on fetching and validating requirements.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for checking requirements before creating a recipient, but does not explicitly state when to use this tool over alternatives like 'list_recipients' or 'send_money'.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

list_recipientsA

Returns all recipients from the Wise API for the given profile type of current user. If a user has multiple profiles of that type, it will return recipients from the first profile.

ParametersJSON Schema
NameRequiredDescriptionDefault
profile_typeNoThe type of profile to list recipients for. one of [personal, business]personal
currencyNoOptional. Filter recipients by currency code (e.g., 'EUR', 'USD')

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

A3.7/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description must carry the burden. It discloses the 'first profile' behavior, which is a useful trait beyond the schema. However, it does not mention other behavioral aspects like idempotency, rate limits, or side effects.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is two sentences, concise and front-loaded with the core purpose. No unnecessary words or redundant information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool has an output schema (not shown) and low complexity with 2 parameters. The description covers the key behavioral point of first-profile limitation but lacks explanation of return structure, error cases, or pagination. Adequate but not thorough.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Input schema has 100% coverage for parameters, so baseline is 3. The description adds minimal meaning beyond the schema by mentioning 'profile type of current user' and 'first profile' but does not elaborate on currency filtering.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool returns all recipients for a given profile type, using the verb 'list' and specifying the resource 'Wise API recipients'. It distinguishes from sibling tools like 'create_recipient' which is a different action.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides a behavioral caveat about returning recipients from the first profile if multiple exist, which helps in understanding edge cases. However, it does not explicitly state when to use this tool versus alternatives or provide exclusion criteria.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

send_moneyB

Send money to a recipient using the Wise API.

ParametersJSON Schema
NameRequiredDescriptionDefault
profile_typeYesThe type of profile to use (personal or business)
source_currencyYesSource currency code (e.g., 'USD')
source_amountYesAmount in source currency to send
recipient_idYesThe ID of the recipient to send money to
payment_referenceNoOptional. Reference message for the transfer (defaults to "money")
source_of_fundsNoOptional. Source of the funds (e.g., "salary", "savings")

Output Schema

ParametersJSON Schema
NameRequiredDescription
resultYes

TDQS

B3.2/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries full burden, but it provides no behavioral details beyond the name. It does not disclose mutation implications, error conditions, or authorization needs.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Single sentence, front-loaded, no unnecessary words. Every word earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has 6 parameters and no annotations, the description is too brief. It lacks context about success/failure, idempotency, and usage flow. Output schema exists but does not compensate for missing behavioral context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so baseline is 3. The description adds no extra context about parameter meaning beyond what the schema already provides.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb 'Send' and resource 'money to a recipient using the Wise API', distinguishing it from sibling tools that manage recipients (create, get requirements, list).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives. It does not mention prerequisites, such as needing a recipient created first, or when not to use it.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

TDQS

A3.7/5.0
Disambiguation5/5

Each tool has a clearly distinct purpose: creating recipients, fetching requirements, listing recipients, and sending money. No overlap.

Naming Consistency5/5

All tool names follow a consistent verb_noun pattern in snake_case (e.g., create_recipient, list_recipients, get_recipient_requirements, send_money).

Tool Count5/5

With 4 tools, the server is well-scoped for a focused Wise integration covering recipient management and money transfer.

Completeness4/5

Covers key recipient and transfer operations, but lacks a direct get_recipient by ID or update/delete recipient, which are minor gaps.

Maintenance

ActivityInactive
ResponsivenessSyncing

Resources

Unclaimed servers have limited discoverability.

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