Method CRM API, built to connect everything

Yes. Method’s API lets authorized third-party applications access your permitted Method records, including data synced from QuickBooks Online or QuickBooks Desktop. Depending on the permissions granted, the application may be able to view, create, edit, or delete that data.

Yes. Claude can connect to Method CRM through Method’s API. You’ll need a Method API key, Method’s API documentation, and a Claude environment with code execution and network access enabled. Claude can then retrieve Method data and, depending on the workflow, create, update, or delete records. Before giving Claude or another LLM direct access to Method’s API, understand that its permissions may allow the tool to change data in your Method account, not just view it.

No. You don’t need an in-house developer to use Method’s API, but someone should carefully test the connection before it accesses live data. Method does not provide an API sandbox, and deleted data cannot be recovered.

Method publishes its complete API specification and a 30-rule review guide that you can provide to Claude, ChatGPT, or another LLM to help build and validate an integration. If you need a securely configured MCP server, connect with Method’s team to get one built and tailored to your needs.

The API can extend a customized Method account by connecting its data with external systems and purpose-built tools. It can create, retrieve, update, and delete records, but it does not replace Method’s native tools for customizing screens and workflows. For the best results, build the connection around your account’s existing tables, fields, and processes.

Method provides REST API documentation with authentication guidance and implementation examples. Developers can also use the OpenAPI specification or Method’s Postman resources for testing. For account-specific help, customers can contact Method Support or work with Method experts. The r/MethodCRM Reddit community provides another place to ask questions and learn from other users.

Your Method account can be connected with applications that exchange data via a REST API. Examples of such applications include e-commerce platforms, reporting software, scheduling software, and internal systems. The compatibility of each application’s API and the way the connection is set up will determine whether they can integrate with Method.

Those who want more control over how Claude interacts with Method can connect with Method’s team to get a custom MCP built. This can be configured around specific workflows, the records and fields a business wants Claude to access, and the actions Claude is allowed to take.

Today, the API is available at no additional cost to Method customers and trial users. A Method account is required, and connected applications, middleware, or custom development may have separate costs.

Not necessarily. Method’s API provides access to the QuickBooks data synced with your Method account. This lets you build workflows around CRM and QuickBooks-connected data through one Method connection, without separately registering an app and configuring permissions through the QuickBooks API.

Build safeguards into every Method CRM API connection by designing it around your specific account structure and workflow. Protect API keys, confirm that data maps to the correct tables and fields, and limit each connected tool to only the actions it needs to perform. Before going live, test requests in a controlled environment and require confirmation for sensitive actions, such as deleting records or changing financial information. You should also log API activity, surface errors, and monitor API limits on usage so problems can be identified quickly.