Format Conversion

Z85 RFC 1924 Base85 Stream Encoder Decoder

Encode or decode bytes with ZeroMQ Z85, RFC 1924 Base85 or a validated custom alphabet in single or line-batch mode

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Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/z85-rfc1924-base85-stream-codec' \
  -H 'Content-Type: application/json' \
  -d '{"input":"00010203","operation":"encode","variant":"z85","inputEncoding":"hex","outputEncoding":"utf8","batchMode":"single","customAlphabet":"","strictBlockLength":true}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/z85-rfc1924-base85-stream-codec

Parameters

Name	Type	Required	Description
input	textarea	Yes	—
operation	select	No	—
variant	select	No	—
inputEncoding	select	No	—
outputEncoding	select	No	—
batchMode

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-z85-rfc1924-base85-stream-codec": {
      "name": "z85-rfc1924-base85-stream-codec",
      "description": "Encode or decode bytes with ZeroMQ Z85, RFC 1924 Base85 or a validated custom alphabet in single or line-batch mode",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=z85-rfc1924-base85-stream-codec",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "z85-rfc1924-base85-stream-codec",
    "arguments": {
  "input": "00010203",
  "operation": "encode",
  "variant": "z85",
  "inputEncoding": "hex",
  "outputEncoding": "utf8",
  "batchMode": "single",
  "customAlphabet": "",
  "strictBlockLength": true
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

Questions or issues? Contact [email protected]

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