Pubchem Compound Request

PubChem PUG REST API - Get compound properties by CID

BiomedicalResearchPubMedClinical TrialsPubChemGenomicsHealthScienceGovernment

Pubchem Compound Request is an example object payload from National Institutes of Health (NIH), with 5 top-level fields. It illustrates the shape of data this provider's APIs accept or return.

Top-level fields

descriptionapiendpointparameterscurl_example

Example Payload

Raw ↑
{
  "description": "PubChem PUG REST API - Get compound properties by CID",
  "api": "PubChem PUG REST",
  "endpoint": "GET /compound/cid/{cids}/JSON",
  "parameters": {
    "cids": [
      2244
    ],
    "properties": "MolecularFormula,MolecularWeight,CanonicalSMILES,IUPACName"
  },
  "curl_example": "curl -X GET 'https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/2244/property/MolecularFormula,MolecularWeight/JSON'"
}

Work with this as data

Every example here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for examples

4 MCP tools reach this
  • find_examplesBrowse and filter every example in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This example
curl "https://apis.io/api/v1/examples/pubchem-compound-request"
All examples
curl "https://apis.io/api/v1/examples?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.