MCP server

Nist Fluid Properties

io.github.pipeworx-io/nist-fluid-properties

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

NIST Chemistry WebBook — Thermophysical Properties of Fluid Systems.

Working at last checkOfficial: pipeworx.io's GitHub account (pipeworx-io)About 27,156 tokens per request once connected45 tools

Website Source

https://gateway.pipeworx.io/nist-fluid-properties/mcp

At a glance

Type: MCP server
Publisher: pipeworx.io (verified by the MCP Registry)
Status: Working at last check
Tools: 45
Token cost: About 27,156 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to Cursor Add to VS Code VS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http nist-fluid-properties https://gateway.pipeworx.io/nist-fluid-properties/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.nist-fluid-properties]
url = "https://gateway.pipeworx.io/nist-fluid-properties/mcp"

Gemini CLI

{"mcpServers":{"nist-fluid-properties":{"httpUrl":"https://gateway.pipeworx.io/nist-fluid-properties/mcp"}}}

Cursor

{"mcpServers":{"nist-fluid-properties":{"url":"https://gateway.pipeworx.io/nist-fluid-properties/mcp"}}}

VS Code

{"servers":{"nist-fluid-properties":{"type":"http","url":"https://gateway.pipeworx.io/nist-fluid-properties/mcp"}}}

Antigravity

agy mcp add nist-fluid-properties https://gateway.pipeworx.io/nist-fluid-properties/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"nist-fluid-properties","server_url":"https://gateway.pipeworx.io/nist-fluid-properties/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"nist-fluid-properties","server_url":"https://gateway.pipeworx.io/nist-fluid-properties/mcp"}

Tools

nist_fluid_list ~151 tokens
List the ~76 fluids NIST's Chemistry WebBook carries full thermophysical property surfaces for (water, nitrogen, oxygen, argon, CO2, light hydrocarbons, refrigerants R11-RC318, and a few industrial gases). Optionally filter by a substring of the name or refrigerant code.
nist_fluid_properties ~348 tokens
Density, specific volume, internal energy, enthalpy, entropy, Cv, Cp, speed of sound, Joule-Thomson coefficient, viscosity, thermal conductivity and phase (liquid/vapor/supercritical) for one of NIST's ~76 reference fluids (water, nitrogen, oxygen, argon, CO2, hydrocarbons, refrigerants...) at a giv
nist_fluid_saturation ~354 tokens
Liquid/vapor saturation (phase-boundary) properties for one of NIST's ~76 reference fluids — give EITHER a saturation temperature (returns the matching saturation pressure, e.g. boiling point at 1 atm) OR a saturation pressure (returns the matching saturation temperature), plus density, enthalpy, en

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