What is SLIM_MODE?
SLIM_MODE reduces the number of exposed MCP tools to an essential subset (~9 tools) for faster LLM response times and lower token usage. It is recommended for most day-to-day operations.
@aywengo
Basic information
A comprehensive Message Control Protocol (MCP) server for Kafka Schema Registry.
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"kafka-schema-registry-multi": {
"command": "docker",
"args": [
"run",
"--rm",
"-i",
"--network",
"host",
"-e",
"SCHEMA_REGISTRY_NAME_1",
"-e",
"SCHEMA_REGISTRY_URL_1",
"-e",
"SCHEMA_REGISTRY_USER_1",
"-e",
"SCHEMA_REGISTRY_PASSWORD_1",
"-e",
"READONLY_1",
"-e",
"SCHEMA_REGISTRY_NAME_2",
"-e",
"SCHEMA_REGISTRY_URL_2",
"-e",
"SCHEMA_REGISTRY_USER_2",
"-e",
"SCHEMA_REGISTRY_PASSWORD_2",
"-e",
"READONLY_2",
"aywengo/kafka-schema-reg-mcp:stable",
"python",
"kafka_schema_registry_unified_mcp.py"
],
"env": {
"SCHEMA_REGISTRY_NAME_1": "<NAME of SR 1>",
"SCHEMA_REGISTRY_URL_1": "<URL of SR 1>",
"SCHEMA_REGISTRY_USER_1": "",
"SCHEMA_REGISTRY_PASSWORD_1": "",
"READONLY_1": "false",
"SCHEMA_REGISTRY_NAME_2": "<NAME of SR 2>",
"SCHEMA_REGISTRY_URL_2": "<URL of SR 2>",
"SCHEMA_REGISTRY_USER_2": "",
"SCHEMA_REGISTRY_PASSWORD_2": "",
"READONLY_2": "false"
}
}
}
}Tool list not available yet
This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.
We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.
It is a Model Context Protocol (MCP) server that provides Claude Desktop and other MCP clients with tools for Kafka Schema Registry operations, including advanced schema context support, multi-registry management, and comprehensive schema export capabilities.
Install via Docker (recommended) with environment variables for registry URL, then configure Claude Desktop using the provided config examples. Interact using natural language prompts to list contexts, register schemas, or export schemas. Alternatively, run locally with Python or use Docker Compose for testing.
SLIM_MODE reduces the number of exposed MCP tools to an essential subset (~9 tools) for faster LLM response times and lower token usage. It is recommended for most day-to-day operations.
Yes, the server supports up to 8 registries simultaneously using environment variables with numbered suffixes (e.g., SCHEMA_REGISTRY_NAME_1, SCHEMA_REGISTRY_URL_2). Each registry can have its own VIEWONLY and authentication settings.
Set VIEWONLY=true to enable read-only protection, and use OAuth 2.1 authentication with scope-based permissions via the SCHEMA_REGISTRY_USER and SCHEMA_REGISTRY_PASSWORD environment variables.
The server uses the MCP 2025-06-18 specification over stdio (JSON-RPC) for communication with Claude Desktop and other MCP clients.
Python 3.10 or higher is required. The server depends on the FastMCP 2.8.0+ framework and Python libraries listed in requirements.txt. Docker images are available for deployment.
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