chembl-mcp-server

What this does

chembl-mcp-server exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.

Requirements

This server declares the following environment variables. Set only the ones the maker requires for your setup; this listing does not flag any of them as required:

CANVAS_PROVIDER_TYPE
CHEMBL_API_BASE_URL
CHEMBL_REQUEST_TIMEOUT_MS
CHEMBL_MAX_PAGE_SIZE
CHEMBL_DEFAULT_LIMIT
CHEMBL_MAX_SPILL_ROWS
CHEMBL_MAX_CONCURRENT_PAGES
CHEMBL_SPILL_DEADLINE_MS
CHEMBL_DATAFRAME_DROP_ENABLED
MCP_LOG_LEVEL

Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).

How do I install chembl-mcp-server?

Run the Claude Code command in the install section to add chembl-mcp-server to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.

Which clients work with chembl-mcp-server?

This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to chembl-mcp-server as well.

Does chembl-mcp-server need an API key?

This listing does not flag an API key as required. The server can use these environment variables: CANVAS_PROVIDER_TYPE, CHEMBL_API_BASE_URL, CHEMBL_REQUEST_TIMEOUT_MS, CHEMBL_MAX_PAGE_SIZE, CHEMBL_DEFAULT_LIMIT, CHEMBL_MAX_SPILL_ROWS, CHEMBL_MAX_CONCURRENT_PAGES, CHEMBL_SPILL_DEADLINE_MS, CHEMBL_DATAFRAME_DROP_ENABLED, MCP_LOG_LEVEL; the maker's docs say which of them your setup needs. They go in the env block of your MCP config.