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Base64
An MCP tool from the Developer Toolbox server, hosted on mcp.hjlabs.in.
Encode text to Base64 or decode Base64 back to text, correctly for any UTF-8 content including non-Latin scripts and emoji. Supports URL-safe Base64URL.
Name on the gateway: devtools__base64 · read-only.
Parameters
| Name | Type | Description |
|---|---|---|
text required | string | The text to encode, or the Base64 to decode. |
mode | encode | decode | Default "encode". |
urlSafe | boolean | When encoding, emit Base64URL (- and _, no padding). |
How to call it
Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:
{
"name": "devtools__base64",
"arguments": {
"text": "…"
}
}Or connect the Developer Toolbox server directly, which lists 18 tools including this one:
claude mcp add --transport http hj-devtools https://mcp.hjlabs.in/mcp/devtools \
--header "Authorization: Bearer YOUR_API_KEY"Try asking
Use the base64 tool with text set to ….