Run a write action in an app

Run a write action in an app

Runs one write action in an app connected to Zapier, such as sending a message, creating a task or updating a record, and returns the result.

On the MCP server the action runs through the app's default connection; to use another, look up its ID with list_zapier_connections and pass it as connection_id. On the CLI, pass the app, write and the action key, with --connection (an ID from zapier-sdk list-connections) and --inputs as JSON, as in zapier-sdk run-action google-sheets write add_row. Each successful MCP tool call uses two tasks from the Zapier plan. A write reaches real people and records: confirm the inputs first.

Set up

Use the first option your agent supports.

MCP (official, remote)

Add this server to your agent's MCP settings, then sign in when asked.

{ "mcpServers": { "zapier": { "url": "https://mcp.zapier.com/api/v1/connect" } } }

Call the MCP tool execute_zapier_write_action.

Server URL: https://mcp.zapier.com/api/v1/connect

CLI (official)

Install the command, then confirm it runs.

npm install -g @zapier/zapier-sdk-cli
zapier-sdk --version

Run zapier-sdk run-action.

Before doing anything else, make one read-only call to confirm access.

Rules

• Ask the user before anything that sends messages, costs money, or changes data.
• Never print API keys.