freee-mcp
The official MCP server and Agent Skills from freee, letting an AI agent call freee's accounting, HR, invoicing, workforce, sales, IT-asset, outsourcing-management and e-signature APIs, with OAuth 2.0 and PKCE authentication.
freee-mcp covers twelve freee APIs and around 515 operations, including electronic-signature document management through a dedicated freee-sign-mcp command. The MCP server handles API calls, authentication and request validation, while the accompanying Agent Skills inject API reference material and operation recipes into an agent's context so it uses the API correctly.
It can connect to freee's hosted remote MCP server with no local setup, or run locally after registering a freee application and configuring OAuth client credentials; a setup wizard handles authentication and business selection, and multiple business offices can be switched dynamically.
Agent Skills install through npx skills add, the GitHub CLI's gh skill install, or an Agent Package Manager, and support scoping to a user, a project, or a pinned tag or commit.