Chemistry & materials
Compounds & materials
Properties and identifiers from PubChem and ChEBI; crystal structures, band gaps and stability from Materials Project, OQMD and COD.
1 credit / call|lookup_compound, lookup_material
Once connected, say this to your agent
Compare band gap and formation energy of the known polymorphs of TiO2.
Works withClaude · ChatGPT · Codex · Cursor · Gemini CLI · REST API
Toolslookup_compound, lookup_material
Example
YOU SAY TO YOUR AGENT
Look up caffeine: formula, molecular weight, identifiers.
On the right: the call your agent makes and the reply it got on 2026-10-13, shortened to the first records and a few of their fields.
lookup_compound({
"query": "caffeine"
})
{
"summary": "Caffeine (PubChem CID 2519): C8H10N4O2, molecular weight 194.19 g/mol, CHEBI:27732.",
"records": [
{
"title": "Caffeine",
"url": "https://pubchem.ncbi.nlm.nih.gov/compound/2519",
"source": "pubchem",
"data": {
"cid": 2519,
"iupacName": "1,3,7-trimethylpurine-2,6-dione",
"formula": "C8H10N4O2",
"molecularWeight": 194.19,
"smiles": "CN1C=NC2=C1C(=O)N(C(=O)N2C)C",
"inchiKey": "RYYVLZVUVIJVGH-UHFFFAOYSA-N",
"casNumber": "58-08-2"
}
}
],
"credits_used": 1
}What you get
- Properties, structures and source IDs
Good fit
- Chemistry, materials science, catalysis
Not for
- Commercial databases like CAS or Reaxys
Similar capabilities
Frequently asked questions
Your agent calls lookup_compound, lookup_material over MCP. ScholarMuse queries PubChem, ChEBI, Materials Project, OQMD, Crystallography Open Database and returns records, each with its source, licence and a link you can check.
No. It costs 1 credit per call, charged only when the call succeeds. A new account gets 50 credits once, valid for 30 days.
Claude, ChatGPT, Codex, Cursor, Gemini CLI and any other client that supports MCP.
Yes. The same tools (lookup_compound, lookup_material) are available over the REST API.