# When registering an MCP, if the '=' character is included in the args, it gets converted

**URL:** <https://platform.jetbrains.com/t/when-registering-an-mcp-if-the-character-is-included-in-the-args-it-gets-converted/1984>\
**Category:** Off-Topic\
**Created:** [June 11, 2025, 11:08am UTC](https://platform.jetbrains.com/t/when-registering-an-mcp-if-the-character-is-included-in-the-args-it-gets-converted/1984 "2025-06-11T11:08:41Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![user3](https://sea1.discourse-cdn.com/flex001/user_avatar/platform.jetbrains.com/user3/32/1492_2.png) [@user3](https://platform.jetbrains.com/u/user3)\
**Post date:** [June 11, 2025, 11:08am UTC](https://platform.jetbrains.com/t/when-registering-an-mcp-if-the-character-is-included-in-the-args-it-gets-converted/1984/1 "2025-06-11T11:08:41Z")

</div>

When registering an MCP, if the ‘=’ character is included in the args, it gets converted.

```json
{
  "mcpServers": {
    "Framelink Figma MCP": {
      "command": "npx",
      "args": [
        "-y",
        "figma-developer-mcp",
        "--figma-api-key=figd_ ***************************",
        "--stdio"
      ]
    }
  }
}

```

When you register it like this, the ‘=’ character in the args gets changed to “\u003d”.  
Of course, it doesn’t work properly either. Is this a bug?

 ![image](https://us1.discourse-cdn.com/flex001/uploads/jetbrains_platform/original/2X/5/53be49fba8626b5ce390c2cacacd30e9db63412b.png)