Skip to main content
Can you try Cargo without an account? No. Every command and every API call needs one credential, and there is no demo key or anonymous mode. Getting one takes a single command, no browser and no card: a new account starts with 100 free credits.
--email mails a one-time code and creates the account and a workspace on first use. In an agent or sandbox shell the first call sends the code and exits; re-run it with --code <code> once the user reads it to you. There is one credential. The CLI holds it, and everything reads it: the REST API, your project, the skills, and the MCP bridge. Sign in once and nothing else needs configuring.
Cargo here is the GTM platform at getcargo.ai, not Rust’s package manager. Its binary is cargo-ai, installed from npm, and it needs no cargo, rustc or Cargo.toml.

​
Methods

​
If sign-in does not finish

auth.getcargo.io serves only the OAuth endpoints below and has no pages to visit. The human walkthrough for Claude Code is www.getcargo.ai/with/claude-code.

​
Calling the API

See API Reference for the rest of the surface.

​
OAuth

Authorization-server metadata (RFC 8414): https://auth.getcargo.io/.well-known/oauth-authorization-server. Device code, authorization code with PKCE (S256), registration, and revocation. The product MCP server at https://mcp.getcargo.io challenges with OAuth. See MCP servers.

​
Machine-readable walkthrough

The WorkOS auth.md walkthrough — Discover, Pick a method, Register, Claim, Use, Revocation — is https://www.getcargo.ai/auth.md.