Claude.ai
Open Claude connector settings. Select Add custom connectorChatGPT
Open Atlas in ChatGPT → Open the Atlas app and follow the prompts to connect your Atlas account. Choose the merchant you want ChatGPT to access. Then approve the connection Start a new chat and add Atlas from the tools menu. You can then ask ChatGPT about your operationsClaude Code
/mcp. Select Atlas and sign in. Choose a merchant, then approve the connection
Codex
Open~/.codex/config.toml and add the following:
Switch merchants
- Claude.ai: Reconnect Atlas from Claude’s connector settings
- ChatGPT: Reconnect Atlas from ChatGPT’s app settings
- Claude Code: Run
/mcp, select Atlas, then select Clear authentication. Sign in again and choose another merchant - Codex: Run
codex mcp logout atlas, thencodex mcp login atlas --scopes mcp. Sign in again and choose another merchant
Other clients
Need an API token? Follow the API authentication guide. The same token works with the MCP headers above