VRChat MCP Server

Instructions

Implementation Reference

• src/tools/friends.ts:14-32 (handler)

  The handler function that authenticates the VRChat client, sends a friend request to the specified userId using the friendsApi, and returns the response as text or an error message.

  async (params) => {
    try {
      await vrchatClient.auth()
      const response = await vrchatClient.friendsApi.friend(params.userId)
      return {
        content: [{
          type: 'text',
          text: JSON.stringify(response.data, null, 2)
        }]
      }
    } catch (error) {
      return {
        content: [{
          type: 'text',
          text: 'Failed to send friend request: ' + error
        }]
      }
    }
  }

• src/tools/friends.ts:11-13 (schema)

  Input schema using Zod, requiring a non-empty string 'userId'.

  {
    userId: z.string().min(1),
  },

• src/tools/friends.ts:6-33 (registration)

  Registers the tool 'vrchat_send_friend_request' on the McpServer instance within the createFriendsTools function, specifying name, description, input schema, and handler.

  server.tool(
    // Name
    'vrchat_send_friend_request',
    // Description
    'Send a friend request to another user.',
    {
      userId: z.string().min(1),
    },
    async (params) => {
      try {
        await vrchatClient.auth()
        const response = await vrchatClient.friendsApi.friend(params.userId)
        return {
          content: [{
            type: 'text',
            text: JSON.stringify(response.data, null, 2)
          }]
        }
      } catch (error) {
        return {
          content: [{
            type: 'text',
            text: 'Failed to send friend request: ' + error
          }]
        }
      }
    }
  )