Onto
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Use this server
Add it to your MCP client. The catalogue lists this config verbatim from its source — it does not run, download, or vouch for the server. Review the command before you run it.
Transportstdio (runs a local command)
Env vars
ONTO_API_KEY ONTO_API_BASEClaude Code
claude mcp add --env ONTO_API_KEY= --env ONTO_API_BASE= onto -- npx @ontosdk/mcp
Cursor
If the button doesn't open Cursor, use the JSON below — Cursor accepts the same mcpServers config.
VS Code
code --add-mcp '{"name":"onto","command":"npx","args":["@ontosdk/mcp"],"env":{"ONTO_API_KEY":"","ONTO_API_BASE":""}}'
JSON
{
"mcpServers": {
"onto": {
"command": "npx",
"args": [
"@ontosdk/mcp"
],
"env": {
"ONTO_API_KEY": "",
"ONTO_API_BASE": ""
}
}
}
}
Environment variables are listed by name only — fill in your own values. Entries never carry secrets.