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PubChem PUG REST API Connector for AI agents.

4 live capabilities

Pull verified molecular formulas and chemical data for pharmaceutical research.

Live agent request PubChem PUG REST API / Connector

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AI Agent

Why people use PubChem PUG REST API

PubChem PUG REST API for Chemical Data Auditing

This Connector changes that by letting you ask your agent to do the searching. You just type the name of a compound, and your agent pulls the metadata, formulas, and identifiers instantly. You get verified data in your chat window without the manual overhead.

  • Claude
  • ChatGPT
  • Gemini
  • Cursor
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  • Windsurf

What Vinkius changes

You get instant access to verified molecular data without leaving your chat interface.

Use it from Claude, ChatGPT, Cursor or another AI client you already have.

One account · 5,900+ Connectors

  1. Real-world use case 01

    Verifying drug candidates

    A pharmacologist needs to verify the molecular formula of a new drug candidate.

  2. Real-world use case 02

    Rapid student research

    A chemistry student wants to identify the properties of glucose quickly.

  3. Real-world use case 03

    Laboratory safety audits

    A lab manager needs to audit a list of 50 chemicals for a safety report.

Complete set · 4capabilities

The complete PubChem PUG REST API capability set.

These are the exact actions your AI can choose when you ask it to work with PubChem PUG REST API.

Capability set01 / 01

01—04

4 capabilities in this set.

Part of 4 available through PubChem PUG REST API.

  1. 01 Capability

    Check api status

    This capability verifies that the PubChem PUG REST service is currently online. This ensures your research workflow won't hit a dead end.

  2. 02 Capability

    Get compound by cid

    This capability fetches complete data for a specific Compound Identifier. It is the fastest way to get precise info on a known record.

  3. 03 Capability

    Get compound by name

    This capability gets full details for a chemical compound using its common name. It makes it easy to jump from a name to a full profile.

  4. 04 Capability

    Search compound cids

    This capability finds Compound Identifiers (CIDs) based on a keyword or name. Use this to identify multiple matches in the database.

Set up in minutes

One URL. Then ask PubChem PUG REST API to work.

Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use PubChem PUG REST API from the conversation.

Choose your client

Live preview
Advanced clients IDE · CLI

Claude · Web + desktop

Official guide ↗

Connector URL · ready to paste

Streamable HTTP
https://edge.vinkius.com/vk_preview_39PvvjDIh0Gw5sIiVCJqmFBNo6SJy2fu1ixaSd7V/mcp
  1. Step 01

    Open Connectors

    In Claude Web or Claude Desktop, open Settings and choose Connectors.

  2. Step 02

    Add the URL

    Choose Add custom connector, name it PubChem PUG REST API, and paste the URL above.

  3. Step 03

    Turn it on in chat

    Select +, open Connectors, and enable PubChem PUG REST API for the conversation.

Where the request belongs

Work PubChem can move forward.

Built around the request

Scientists and pharmacologists who need to verify chemical data quickly. It solves the problem of manual data entry and cross-referencing between different research portals.

01

Pharmacologist

Verifies drug compound patterns and molecular formulas during pharmaceutical research.

02

Research Scientist

Audits chemical metadata and technical properties for laboratory reports and papers.

03

Chemistry Student

Identifies properties of chemical compounds using natural language during study.

04

Operations Lead

Automates the querying of chemical data for large research teams to ensure accuracy.

Build the capability set

Add more capabilities.

Each Connector adds new actions and data without changing how you work.

Browse Connectors
PubChem logo
01 3 capabilities

PubChem

Search 116M+ chemical compounds with molecular properties, SMILES notation, formulas, and drug-like properties from the world's largest free chemistry database.

View Connector
NLM RxNorm (Drug Database) logo
02 21 capabilities

NLM RxNorm (Drug Database)

Access the NLM RxNorm database to search for drugs, retrieve RxCUIs, and inspect standardized drug properties and identifiers.

View Connector
EPA Computational Toxicology logo
03 10 capabilities

EPA Computational Toxicology

Access the US EPA's CompTox Chemicals Dashboard data. search for chemicals, properties, hazard summaries, and exposure data.

View Connector
KEGG logo
04 7 capabilities

KEGG

Access the Kyoto Encyclopedia of Genes and Genomes (KEGG) to query genomic, chemical, and systemic functional information directly from your AI agent.

View Connector
RxNorm Drug Terminology logo
05 3 capabilities

RxNorm Drug Terminology

Universal drug nomenclature intelligence. resolve clinical drug names and codes via AI.

View Connector
FDA (openFDA) logo
06 12 capabilities

FDA (openFDA)

Access public health data via openFDA. search drug labeling, monitor adverse events, and track food recalls directly through your AI agent.

View Connector

Bring your own AI

Change the model, client or framework. Keep PubChem connected.

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Before you connect

Questions about PubChem.

The practical details behind the request, access and result.

Does the PubChem PUG REST API MCP require an API key?

No, it does not. Since PubChem is a free and open service, you can connect your agent and start pulling data immediately without managing keys.

How can I use the PubChem PUG REST API MCP to verify chemical formulas?

You can simply ask your agent to look up a specific compound by its name or CID. It will pull the official molecular formula directly from the National Library of Medicine for you.

Can the PubChem PUG REST API MCP find compounds by keyword?

Yes, your agent can search for compounds using keywords. It will return a list of matching Compound Identifiers (CIDs) so you can find exactly what you need.

Is the data in the PubChem PUG REST API MCP accurate for pharmacology?

Yes, the data comes directly from PubChem, which is an authoritative source for molecular and chemical data used widely in pharmacology and research.

Can I use the PubChem PUG REST API MCP to audit laboratory chemicals?

Yes, you can ask your agent to pull high-resolution technical properties and metadata for specific chemicals to help you audit your inventory or research records.

What happens if the PubChem service is down?

You can ask your agent to check the service status. This will tell you if the connection to the database is active before you start your research workflow.

Is an API Key required for PubChem API?

No. PubChem is a free and open service provided by the NIH. This server works out of the box without any static credentials required.

What is a CID?

CID stands for Compound Identifier. It is a unique numerical ID assigned to each chemical compound in the PubChem database.

Can the agent show molecular formulas?

Yes. The compound details retrieved by your agent include the molecular formula and IUPAC name metadata where available.

One connection away

Give your agent a direct line to PubChem.

Connect PubChem once. Keep it beside 5,900+ managed Connectors when the next task needs more.

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