pubchem-mcp-server

by cyanheads·io.github.cyanheads/pubchem-mcp-server·v0.6.2

Search PubChem compounds, properties, safety data, bioactivity, and cross-references.

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Safety scan

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Adoption

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Usage numbers are collected on the next scan

Reviews

Nobody has reviewed pubchem-mcp-server yet.

If you have run it, two minutes of your experience saves the next person an afternoon.

Tool list not cached yet. `describe` through the gateway fetches it live.

Not scanned yet. New registry listings are scanned within a day of import.

claude mcp add --transport http pubchem-mcp-server https://pubchem.caseyjhand.com/mcp

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With the gateway added, ask your agent for it by name:

agent prompt

call io.github.cyanheads/pubchem-mcp-server → <tool>

Free per call. Metered, capped by your key, logged for reliability.

MCP_LOG_LEVELSets the minimum log level for output (e.g., 'debug', 'info', 'warn').
MCP_SESSION_MODEHTTP session mode: stateless, stateful, or auto. Stateless is sufficient for PubChem; auto resolves to stateful.
MCP_HTTP_HOSTThe hostname for the HTTP server.
MCP_HTTP_PORTThe port to run the HTTP server on.
MCP_HTTP_ENDPOINT_PATHThe endpoint path for the MCP server.
MCP_AUTH_MODEAuthentication mode to use: 'none', 'jwt', or 'oauth'.
MCP_LOG_LEVELSets the minimum log level for output (e.g., 'debug', 'info', 'warn').

https://pubchem.caseyjhand.com/mcp

streamable-http

Claim it to keep the listing current and reply to reviews. Claiming never changes the grade or hides a review.

Shows the safety grade and links back to this page. It updates itself after every scan and review.

[![mcp.market](https://mcp.market/badge/cyanheads-pubchem-mcp-server.svg)](https://mcp.market/server/cyanheads-pubchem-mcp-server)