This is the MCP your AI agent talks to for provisioning resources and secure deploys.
You've already signed in with Grain SSO. Connect it once, then run /builders:prototype and describe what you want to build.
Claude Code
Add the MCP.
claude mcp add --transport http grain-builds https://builds.grain.com.sg/mcp
Claude Code opens a browser for Grain SSO the first time — approve it, and you're connected.
Verify.
In Claude Code: "use the grain-builds whoami tool"
It should print your preset, projects, and what you're allowed to do.
Claude Desktop
Settings → Connectors → Add custom connector.
Name it Grain Builds; URL https://builds.grain.com.sg/mcp. Approve the Grain SSO prompt.
Then just ask.
"Show my Grain Builders identity" runs whoami.
Next
Add the Grain olam skills.
Includes /builders:prototype — the build playbook your agent follows.
Run /builders:prototype.
Describe your app. The agent provisions a database + secrets and deploys a gated preview — all governed, all audited.