Mosaic Pre-Clinical Intelligence runs on your own machine — the client starts it, so there is no endpoint to ping. 225 installs a week from pypi. Last commit 18 Oct 2026.
Pre-clinical drug-target intelligence: 60 curated targets, 1,969 counted partner genes, 11 tools
Nothing serious here today
Today is the operative word: we check Mosaic Pre-Clinical Intelligence every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add mosaic-mcp -e 'DATABASE_URL=<DATABASE_URL>' -- uvx mosaic-mcp{
"mcpServers": {
"mosaic-mcp": {
"command": "uvx",
"args": [
"mosaic-mcp"
],
"env": {
"DATABASE_URL": "<DATABASE_URL>"
}
}
}
}[mcp_servers.mosaic-mcp]
command = "uvx"
args = ["mosaic-mcp"]
env = { DATABASE_URL = "<DATABASE_URL>" }{
"mcpServers": {
"mosaic-mcp": {
"command": "uvx",
"args": [
"mosaic-mcp"
],
"env": {
"DATABASE_URL": "<DATABASE_URL>"
}
}
}
}{
"servers": {
"mosaic-mcp": {
"type": "stdio",
"command": "uvx",
"args": [
"mosaic-mcp"
],
"env": {
"DATABASE_URL": "<DATABASE_URL>"
}
}
}
}Put your own value in place of
<DATABASE_URL> (PostgreSQL/Neon connection string for YOUR Mosaic knowledge graph (must end /mosaic_db). Bring your own database — no shared instance is provided).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
MOSAIC_API_KEY (API key unlocking the 7 Pro tools (optional; the 5 free tools work without it)), MOSAIC_TIER (Override tier for local dev: free (default), pro, or enterprise).
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Mosaic Pre-Clinical Intelligence — questions
Answers built from our own checks of this server.