How to connect Square to Codex

1. 1. Enable Square in Metorial

   In your Metorial portal, enable the Square MCP server and sign in with the account that owns the data. Access stays governed by your team policies.

2. 2. Add the server and sign in

   The Codex CLI, IDE extension and ChatGPT desktop app share this config.

   Copy

   codex mcp add metorial --url <your-magic-mcp-url>
   codex mcp login metorial

3. 3. Check the connection

   Type /mcp in Codex to see Metorial and its Square tools.

• Get Catalog Object: Retrieve a specific catalog object by its ID.
• Upsert Catalog Object: Create or fully replace a catalog object (item, variation, category, tax, discount, modifier list, etc.).
• Update Customer: Update an existing customer profile.
• Create Payment: Charge a token or saved card, or record cash or an external payment.
• Create Order: Create an OPEN or DRAFT order at a Square location.
• Get Inventory Counts: Retrieve current inventory counts, optionally filtered by item variations, locations, tracked states, or update time.
• Get Invoice: Get an invoice by ID, including its current version, payment schedule, recipient, status, and customer payment URL when published.
• Create Invoice: Create a draft invoice for an existing order.
• Delete Customer: Permanently delete a customer profile from the Square account.
• Adjust Inventory: Apply physical counts or inventory adjustments to item variations.
• Search Catalog: Search Square catalog items by text or category, or search catalog objects by type and advanced query.
• List Payments: List payments with documented date, location, card, amount, and offline filters.
• Search Orders: Search for orders across one or more locations.
• Get Customer: Retrieve full details of a specific customer profile by ID.
• List Invoices: List invoices at one location with status, version, recipient, payment requests, and public URL when available.
• And 37 more on the Square MCP server page.

• Limit which Square tools Codex sees with enabled_tools and disabled_tools on the metorial server in config.toml.
• Set default_tools_approval_mode to auto, prompt, writes or approve. writes prompts only for tools that are not marked read-only.
• Type /mcp in the composer to see the connected servers.
• Override the approval behavior for a single Square tool with tools.<tool>.approval_mode.

Metorial is listed but tools are missing

Codex can connect without credentials and then see nothing. Run codex mcp login metorial to complete the OAuth sign-in.

Metorial times out at startup

Codex waits 10 seconds by default. Raise startup_timeout_sec under [mcp_servers.metorial] in ~/.codex/config.toml.

Long tool calls fail after a minute

The default tool timeout is 60 seconds. Raise tool_timeout_sec for the metorial server in config.toml.

Based on the Codex MCP documentation.