SERVER

Sparkplug B

Rank #78,352

io.github.nagarjunr/sparkplug-b

MCP server for Sparkplug B: node/device discovery, metrics, commands, host state over MQTT.

Listed & last published
Aug 4, 2026
PURPOSE

What you can do with Sparkplug B

Sparkplug B is a Model Context Protocol (MCP) server published by nagarjunr. It ranks #78,352 of 144,396 active servers on MCP Toplist. Sparkplug B is listed on Official MCP, with 1 tracked version. It was first listed on Aug 4, 2026 and most recently updated on Aug 4, 2026.

Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.

CAPABILITIES AND LIMITATIONS

What Sparkplug B can and cannot do

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using Sparkplug B

DeclaredAPI keyCredentials declared

The registry listing declares required configuration before first use — typically an API key, token or connection string set via environment variables.

Declared by the Official MCP Registry, last synced Oct 16, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config
  • SPARKPLUG_MQTT_HOST · required
  • SPARKPLUG_HOST_ID · required
  • SPARKPLUG_MQTT_PORT · optional
  • SPARKPLUG_MQTT_USERNAME · optional
  • SPARKPLUG_MQTT_PASSWORD · optional
  • SPARKPLUG_MQTT_USE_TLS · optional
  • SPARKPLUG_GROUP_ID · optional
INSTALLATION AND FIRST TASK

Connect Sparkplug B and confirm it works

Python package (PyPI)
claude mcp add sparkplug-b -e "SPARKPLUG_MQTT_HOST=<your SPARKPLUG_MQTT_HOST>" -e "SPARKPLUG_HOST_ID=<your SPARKPLUG_HOST_ID>" -e "SPARKPLUG_MQTT_PORT=<your SPARKPLUG_MQTT_PORT>" -e "SPARKPLUG_MQTT_USERNAME=<your SPARKPLUG_MQTT_USERNAME>" -e "SPARKPLUG_MQTT_PASSWORD=<your SPARKPLUG_MQTT_PASSWORD>" -e "SPARKPLUG_MQTT_USE_TLS=<your SPARKPLUG_MQTT_USE_TLS>" -e "SPARKPLUG_GROUP_ID=<your SPARKPLUG_GROUP_ID>" -- uvx sparkplug-b-mcp-server

Replace each placeholder with your own value before saving.

First successful task

After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.

ALTERNATIVES

When to choose another server

Other servers by nagarjunr
View all nagarjunr servers →

No task-specific alternatives are catalogued for Sparkplug Byet; the list above is its publisher's other servers.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed
Aug 4, 2026
Latest version published
Aug 4, 2026
Version history
1 version tracked (below)
Requirements evidence
Declared by the Official MCP Registry, last synced Oct 16, 2026. Not independently verified by MCP Toplist.
Profile checked
Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of
Aug 4, 2026
Registry sightings

Do you maintain Sparkplug B? to correct or enrich this profile.

VERSIONS

Available versions (1)

VersionPublished
0.1.0Aug 4, 2026
STANDING
#78,352of 144,396 active servers

Ranks ahead of 66,044 of 144,396 servers on MCP Toplist.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

MCP Toplist: #78,352 of 144,396
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HTML
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FAQ

Frequently asked questions

Who maintains Sparkplug B?
Sparkplug B is maintained by nagarjunr, which publishes 5 MCP servers (5 total versions) tracked on MCP Toplist.
Is Sparkplug B listed on the Official MCP Registry?
Yes — Sparkplug B is listed on the Official MCP Registry.
How many versions does Sparkplug B have?
MCP Toplist tracks 1 version of Sparkplug B, most recently published on Aug 4, 2026.
Where can I find the source code for Sparkplug B?
The source code for Sparkplug B is hosted at github.com/nagarjunr/iot-mcp-servers.
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