Msds Chain

Name: Msds Chain
Author: littleblakew

by littleblakewversion 1.5.12i★ –iRuns on your computer

Registry nameio.github.littleblakew/msds-chain

Install

Overview

Description from the maker (original English)

Chemical safety intelligence — 25 tools: compatibility, hazards, PPE, compliance, SDS lookup

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: Streamable HTTP
Category: Law & government data
You need to fill in: MSDS_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: MSDS_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "msds-chain": {
      "command": "npx",
      "args": [
        "-y",
        "msds-chain-mcp"
      ],
      "env": {
        "MSDS_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add msds-chain --env MSDS_API_KEY=your-value -- npx -y msds-chain-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "msds-chain": {
      "command": "npx",
      "args": [
        "-y",
        "msds-chain-mcp"
      ],
      "env": {
        "MSDS_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "msds-chain": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "msds-chain-mcp"
      ],
      "env": {
        "MSDS_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

MSDS_API_KEY secret required env
API key from msdschain.lagentbot.com (free plan available)

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account littleblakew, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Law & government datai

More stars than 0% of the other 1739 servers in this category
Published to the registry more recently than 88% of the other 1739 servers in this category
Basic checks equal to or better than 100% of the other 1739 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Msds Chain safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: MSDS_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.5.12) reached the registry 5 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

MSDS Chain MCP Server

Chemical safety intelligence for AI-assisted experiment design.

An MCP server that gives AI agents (Claude, ChatGPT, Claude Code, Gemini CLI, Copilot Studio, and any other MCP client) 27 tools for chemical safety reasoning: compatibility checks, hazard analysis, regulatory compliance, PPE, storage, transport, and signed audit reports. Every answer names the supplier SDS it came from, with a link to the original PDF.

MSDS Chain, powered by ChainSDS: a verified, always-current chemical safety database.

Built for researchers who design experiments with AI and want safety verification inside the workflow rather than as a separate step: whether the chemicals on a deck are compatible, which mixing orders are dangerous, what PPE a specific handling step needs, how a compound is treated under EU REACH or US OSHA/TSCA, and what a GLP/GMP reviewer will ask for afterwards.

Quick Start

Hosted endpoint. Nothing to install, nothing to run locally:

claude mcp add msds-chain --transport http https://mcp.lagentbot.com/mcp

Then run /mcp in Claude Code and sign in. A browser opens, you enter your email, and you paste back the code we send you. Your account is provisioned automatically and the free plan includes a credit allowance. There is no API key to create beforehand.

On another platform? See Platform Setup below.

Tools (27)

Tool	Description
`batch_safety_check`	One-call report for a chemical list: pairwise compatibility + per-chemical risk warnings
`check_regulatory_lists`	Cross-reference a chemical against 23 regulatory watch lists across 8 jurisdictions + 3 international conventions
`review_synthesis_route`	Screen a multi-step synthesis route for incompatibilities within each step and between carried-over residue and the next step; never declares a route safe
`assess_thermal_hazard`	Thermal hazard screening: energetic-group and oxygen-balance flags, plus a Stoessel class from process values you supply
`get_sds_section`	Retrieve a specific SDS section (1-16) for a chemical
`get_sds_document`	Signed download URL (~5 min) for the original SDS/MSDS PDF; includes source provenance
`get_chemical_alternatives`	Safer substitutes for restricted or high-risk chemicals
`validate_protocol_chemicals`	Extract & validate chemical names from protocol text or code
`check_mixing_order`	Safe addition sequence for reagent pairs (e.g., acid into water)
`get_waste_disposal`	Waste classification, container type, and disposal procedures
`upload_msds_pdf`	Upload MSDS PDF for AI-powered parsing and data extraction (requires API key)
`validate_sds`	Check an SDS you uploaded for contradictions between its own sections, gaps, age and US OSHA HazCom format; every finding quotes the lines it is based on
`draft_sds_sections`	Draft Sections 8 and 15 of an SDS for your own mixture from its ingredient list; every line cites its source, and missing ingredients are listed rather than guessed
`compare_sds_versions`	Hazard-change diff between two SDS versions (H-code additions/removals + whether they change a verdict)
`check_chemical_compatibility`	Pairwise compatibility for 2+ chemicals
`get_chemical_risk_warnings`	GHS classification, H-codes, signal words, flash point
`get_ppe_recommendation`	Gloves, eye protection, respiratory, body protection
`get_storage_guidance`	Storage class, cabinet type, temperature, isolation rules
`get_emergency_response`	Spill, fire, or exposure emergency procedures
`get_exposure_limits`	OEL/TLV/PEL/MAC across US, EU, JP, CN, INT
`get_transport_classification`	UN number, hazard class, packing group, ADR/IATA/IMDG
`check_regulatory_compliance`	Multi-region compliance status, list-backed for EU, US, CN, JP, CA, AU, SG
`search_chemical_database`	Look up chemicals by name, synonym, or CAS number
`ask_chemical_safety`	Natural language catch-all for any safety question
`create_audit_session`	Full audit with signed PDF report (requires API key)
`get_audit_report`	Download link for the signed audit PDF

Usage Examples

Experiment protocol review:

User: I'm planning a Grignard reaction with magnesium turnings, diethyl ether,

and bromobenzene. Check if this setup is safe.

Agent: → calls batch_safety_check(["magnesium", "diethyl ether", "bromobenzene"]) → Returns: compatibility matrix + per-chemical risk warnings (with source SDS)

Signed audit report:

User: Create a safety audit report for our quarterly review.

Chemicals: acetone, methanol, ethanol, isopropanol, hexane.

Agent: → calls create_audit_session("Q2 2026 Solvent Cabinet Review", [...]) → calls get_audit_report("SESSION-ID") → Returns: signed PDF URL (Ed25519 signature, suitable for GLP/GMP compliance)

Platform Setup

One hosted server, two transports. Pick the row your client supports:

Transport	Endpoint	Notes
Streamable HTTP	`https://mcp.lagentbot.com/mcp`	Preferred: broadest and most robust
SSE	`https://mcp.lagentbot.com/sse`	For clients that only speak SSE

Authentication is either OAuth (the client opens a browser sign-in on first connect) or a static header, Authorization: Bearer sk-msds-your-key, for headless clients. Create a key at msdschain.lagentbot.com > API Keys.

Claude (web, desktop, mobile)

Settings > Connectors, search msds-chain, and enable it. Sign-in happens on first use.

Claude Code

Three routes, any one is enough:

# 1. Remote server only

claude mcp add msds-chain --transport http https://mcp.lagentbot.com/mcp

2. Plugin from the official Claude plugin marketplace (server + skill)

/plugin install msds-chain@claude-plugins-official

3. npm shim (registers the same hosted endpoint)

claude mcp add msds-chain -- npx -y msds-chain-mcp@latest

Manual config in ~/.claude.json:

"mcpServers": { "msds-chain": { "type": "http", "url": "https://mcp.lagentbot.com/mcp" } } }

Routes 2 and 3 of the plugin also install the /msds-safety-check skill: it spots chemicals in your conversation and offers a check, and runs a guided audit for lab protocols or EHS compliance.

ChatGPT

Listed in the OpenAI Plugin Directory. Search MSDS Chain in ChatGPT, enable it, and sign in when prompted. Works on web, desktop, and mobile.

Gemini CLI

Listed in the Gemini CLI extensions gallery:

gemini extensions install https://github.com/littleblakew/msds-chain-mcp

Gemini asks you to confirm twice: once to trust the workspace, once to review the extension and the skill it carries. Your first chemical question starts the sign-in automatically; the server supports Dynamic Client Registration, so Gemini registers itself and completes the OAuth exchange on its own. Check the connection with gemini mcp list, then just ask in chat:

Can acetone and sodium hypochlorite be stored in the same cabinet?

OpenAI Codex CLI

codex marketplace add https://github.com/littleblakew/msds-chain-mcp

Microsoft Copilot Studio and Power Platform

MSDS Chain ships a certified Power Platform connector, so there is nothing to configure by hand. In Copilot Studio, add a tool from the connector directory and search MSDS Chain; the connector handles the OAuth exchange against the same hosted endpoint.

SSE-only clients (悟空 / Wukong, Dify, Coze)

These clients do not speak streamable HTTP yet, so point them at /sse and pass a static key:

Open the MCP server or tool integration settings
Transport type: SSE
URL: https://mcp.lagentbot.com/sse
Header: Authorization : Bearer sk-msds-your-key

Any other MCP client

Use the endpoint table above. Clients that implement OAuth 2.1 with Dynamic Client Registration need no pre-registration; everything else uses the static Authorization header.

Privacy & Data Handling

Privacy Policy: msdschain.lagentbot.com/privacy
Read-only tools send only the chemical names and queries you provide; no personal data is required.
API-key tools (upload_msds_pdf, create_audit_session, get_audit_report) associate activity with your account for audit traceability.
Uploaded MSDS PDFs are processed for data extraction and contribute to the verified ChainSDS database per your account's data-sharing settings.

Data Coverage

Industry-sourced, AI-verified, and cryptographically signed.

4,000,000+ chemical records with multi-language aliases (EN/ZH/JA)
NFPA/GHS classification for compatibility rules
23 regulatory watch lists across major jurisdictions (EU, US, CN, JP, KR, CA, AU, SG) plus international conventions
Occupational exposure limits from 5 standards (OSHA PEL, ACGIH TLV, EU IOELV, JP OEL, CN GBZ)
UN transport data for 16+ common lab chemicals
Version tracking: detects a newer SDS and diffs its hazard classification against the one you relied on

Troubleshooting

Symptom	Likely cause	Fix
`401 Unauthorized` on connect	Missing or invalid API key	Check the `Authorization: Bearer sk-msds-...` header. Generate a fresh key at msdschain.lagentbot.com > API Keys.
Tools don't appear in the client	Server not loaded	Fully restart the client after adding the server, then confirm `msds-chain` shows in the MCP/tools list.
Connection drops or times out	Wrong transport	Prefer `https://mcp.lagentbot.com/mcp`; SSE sessions can drop when the server redeploys. `GET https://mcp.lagentbot.com/health` should return `{"status":"ok"}`.
`Credit balance exhausted`	Credit allowance used up	The error says how to continue: an upgrade link and, on the free plan, when credits reset.
Empty results for a known chemical	Name not matched	Retry with the CAS number or a common synonym; `search_chemical_database` accepts name, synonym, or CAS.
OAuth sign-in fails	OAuth metadata unreachable	Confirm `GET https://mcp.lagentbot.com/.well-known/oauth-authorization-server` returns 200; the client should auto-discover the authorize and token endpoints.

Still stuck? Email contact@lagentbot.com or open an issue at github.com/littleblakew/msds-chain-mcp/issues.

License

MIT

About

Built by LAgentBot, AI-powered chemical safety infrastructure.

Part of the MSDS Chain platform: the world's first AI Agent-driven chemical safety data trust network, powered by ChainSDS.

Msds Chain

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Law & government datai

Common questions

Alternatives

Immigrationhelp

Auctionfinder

Apostilles

README from the maker

MSDS Chain MCP Server

Quick Start

Tools (27)

Usage Examples

Platform Setup

Claude (web, desktop, mobile)

Claude Code

2. Plugin from the official Claude plugin marketplace (server + skill)

3. npm shim (registers the same hosted endpoint)

ChatGPT

Gemini CLI

OpenAI Codex CLI

Microsoft Copilot Studio and Power Platform

SSE-only clients (悟空 / Wukong, Dify, Coze)

Any other MCP client

Privacy & Data Handling

Data Coverage

Troubleshooting

License

About