bifrost/examples/mcps/go-test-server

Go Test Server

A test MCP server written in Go that provides string manipulation, JSON validation, UUID generation, hashing, and encoding/decoding tools.

Tools

1. string_transform

Performs string transformations.

Parameters:

• input (string, required): The input string to transform
• operation (string, required): Operation to perform - "uppercase", "lowercase", "reverse", "title"

Example:

{
  "input": "hello world",
  "operation": "uppercase"
}

Response:

{
  "input": "hello world",
  "operation": "uppercase",
  "result": "HELLO WORLD"
}

2. json_validate

Validates if a string is valid JSON.

Parameters:

• json_string (string, required): The JSON string to validate

Example:

{
  "json_string": "{\"name\": \"test\"}"
}

Response:

{
  "valid": true,
  "parsed": {"name": "test"}
}

3. uuid_generate

Generates a random UUID v4.

Parameters: None

Response:

{
  "uuid": "550e8400-e29b-41d4-a716-446655440000"
}

4. hash

Computes hash of input string.

Parameters:

• input (string, required): The input string to hash
• algorithm (string, required): Hash algorithm - "md5", "sha256", "sha512"

Example:

{
  "input": "hello",
  "algorithm": "sha256"
}

Response:

{
  "input": "hello",
  "algorithm": "sha256",
  "hash": "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
}

5. encode

Encodes input string.

Parameters:

• input (string, required): The input string to encode
• encoding (string, required): Encoding type - "base64", "hex", "url"

Example:

{
  "input": "hello world",
  "encoding": "base64"
}

Response:

{
  "input": "hello world",
  "encoding": "base64",
  "encoded": "aGVsbG8gd29ybGQ="
}

6. decode

Decodes encoded string.

Parameters:

• input (string, required): The encoded input string to decode
• encoding (string, required): Encoding type - "base64", "hex", "url"

Example:

{
  "input": "aGVsbG8gd29ybGQ=",
  "encoding": "base64"
}

Response:

{
  "input": "aGVsbG8gd29ybGQ=",
  "encoding": "base64",
  "decoded": "hello world"
}

Build and Run

# Build
go build -o bin/go-test-server

# Run
./bin/go-test-server

Usage in Tests

config := schemas.MCPClientConfig{
    ID:             "go-test-server",
    Name:           "GoTestServer",
    ConnectionType: schemas.MCPConnectionTypeSTDIO,
    StdioConfig: &schemas.MCPStdioConfig{
        Command: "/path/to/bin/go-test-server",
        Args:    []string{},
    },
}