Build your self-driving GTM engineRegister

Cargo developer resources

Cargo’s developer resources — the API docs, OpenAPI spec, auth docs, webhooks, and MCP server — live on this domain under predictable URLs. Each page names the product in its title so a search for “Cargo” plus the resource finds it.

Cargo API docs

The Cargo REST API is versioned at https://api.getcargo.io/v1. Every path is authenticated. The human-readable reference is Cargo API docs; the machine-readable contract is the Cargo OpenAPI spec.

Cargo OpenAPI spec

The OpenAPI 3.1 specification is published at https://www.getcargo.ai/openapi.json and at https://api.getcargo.io/openapi.json. See Cargo OpenAPI spec for how to fetch and use it.

Cargo auth docs

One credential covers the REST API, the CLI, the CDK, the skills, and MCP. Cargo auth docs walk through cargo-ai login, bearer tokens, and OAuth. The machine-readable walkthrough is at https://www.getcargo.ai/auth.md.

Cargo webhooks

Cargo POSTs signed JSON when a batch finishes, when a tool run completes, and when an HTTP listener receives an event. Cargo webhooks documents the payloads and the X-Cargo-Signature check.

Cargo MCP server

A workspace MCP server exposes the tools, agents, and models you choose to Claude, ChatGPT, Cursor, or any MCP client. Cargo MCP server has the HTTP URL, the server card, and the stdio bridge.

Also on this site

Give your agents a runtime

Bring the agents you have.Start free, deploy in one command.