Skills/PyPI/nifi-clickhouse-kafka-mcp

nifi-clickhouse-kafka-mcp@0.1.0

VERIFIED· not started

Publisher claims: "Read-only MCP server for Apache NiFi, ClickHouse and Kafka, with OIDC, per-user audit and secret masking" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher arogan178 · publishing for 26 daysInstalls 222Last detonated 33 h ago
$claude mcp add nifi-clickhouse-kafka-mcp -- uvx nifi-clickhouse-kafka-mcp
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Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
KEYCLOAK_ADMIN_PASSWORD or --allow-unauthenticatedConfiguration, not credentials: KEYCLOAK_ADMIN_USER, NIFI_CLICKHOUSE_KAFKA_MCP_CONFIG, NIFI_CLICKHOUSE_KAFKA_MCP_HOST, NIFI_CLICKHOUSE_KAFKA_MCP_PORT, NIFI_CLICKHOUSE_KAFKA_MCP_TRANSPORT
Where it talks to
no vendor host named in the code
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it with a scoped credential, under the guard. It asks for KEYCLOAK_ADMIN_PASSWORD and talks to its vendor. Give the credential to the guard, not the server: the value never enters the server's environment and only travels to the host you bind. What the tools do with a real credential was not observed.

$vet-skills run --net declared -- uvx nifi-clickhouse-kafka-mcp

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-13 and scored it 88/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.1sprocessdependency install exit 1 ·
0.1sclaimednot started: dependency install failed (exit 1); the server itself was not observed
0.1sprocessscript backend runs setup only
0.2sprocessno install scripts to re-run

Static findings

MEDIUM
Access to sensitive file pathstests/integration/test_demo_stack.py:170 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"SELECT file('/etc/passwd')",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
URL with embedded credentialstests/test_nifi.py:253 · URL with embedded credentials — may be phishing or credential leakingyaml = b"user: app\npassword: hunter2\nurl: https://app:[email protected]/x"Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST07
MEDIUM
Access to sensitive file pathstests/integration/test_demo_stack.py:163 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"SELECT * FROM \"file\"('/etc/passwd', 'LineAsString')",Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Access to sensitive file pathstests/test_clickhouse.py:36 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesLiteral '/etc/passwd'Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Access to sensitive file pathstests/test_clickhouse.py:128 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesLiteral '/etc/passwd'"""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05

Cost to the agent

Instructions loaded
≈69 tok
1 file · 46 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for nifi-clickhouse-kafka-mcp@0.1.0 as of 32 h ago. This is the package itself, not its dependencies.