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MCP Apache NiFi Server

The MCP Apache NiFi Server connects to a NiFi cluster's REST API to enumerate process groups, read processor states, inspect queued flow files, and toggle components on or off. It's particularly useful for regulated industries (telecom, banking) that rely on NiFi for real-time data movement and want LLM-assisted operations.

MCP facts

Kind: server
Ecosystem: anthropic-mcp
Language: Python
Transports: stdio

Capabilities

Tools: list_process_groups, get_processor_state, start_processor, stop_processor, list_queued_flowfiles
Resources: nifi://process-group/{id}/processor/{id}
Auth: NiFi mTLS client certificates or single user + password

Install

pipx install mcp-server-nifi

Configuration

{
  "mcpServers": {
    "nifi": {
      "command": "mcp-server-nifi",
      "env": {
        "NIFI_URL": "https://nifi.example.com:8443",
        "NIFI_USER": "${NIFI_USER}",
        "NIFI_PASSWORD": "${NIFI_PASSWORD}"
      }
    }
  }
}

Frequently asked questions

Can it create processors or build new flows?

Technically yes, but most production NiFi flows are designed visually and version-controlled via the NiFi Registry. Using MCP for flow authoring is an anti-pattern.

Is there a safer subset of tools for agents?

Read-only tools (list_process_groups, get_processor_state) are low risk. Start/stop should require explicit user approval given the impact on streaming data.

How does it integrate with Cloudera DataFlow?

Cloudera DataFlow is NiFi plus management layers. The same REST endpoints are reachable; add a CDP access key to the env config as needed.

Sources

Apache NiFi REST API — accessed 2026-04-20
Model Context Protocol — accessed 2026-04-20
MCP servers repo — accessed 2026-04-20