Development

Data URI Generator

Convert files into Data URIs (Base64 or percent-encoded) for inlining images, fonts, and assets directly into HTML, CSS, or Markdown

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Quick start

Call this tool from your code in three languages.

cURL

# 1) Upload each file first → returns { filePath }
curl -X POST 'https://api.elysiatools.com/upload/data-uri-generator' \
  -F 'file=@/path/to/file.ext'

# 2) Call the tool with the returned filePath values
curl -X POST 'https://api.elysiatools.com/en/api/tools/data-uri-generator' \
  -F 'file=/path/to/file.ext' \
  -F 'encoding=base64' \
  -F 'outputFormat=data-uri' \
  -F 'customMime=Auto-detected (e.g. image/png). Override only if needed.'

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/data-uri-generator

Parameters

Name	Type	Required	Description
file	fileupload required	Yes	—
encoding	select	No	—
outputFormat	select	No	—
customMime	text	No	—

File-type parameters must be uploaded first via POST /upload/data-uri-generator, then the returned filePath is passed to the corresponding file field.

Response format

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-data-uri-generator": {
      "name": "data-uri-generator",
      "description": "Convert files into Data URIs (Base64 or percent-encoded) for inlining images, fonts, and assets directly into HTML, CSS, or Markdown",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=data-uri-generator",
      "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": "data-uri-generator",
    "arguments": {
  "file": "https://example.com/file.ext",
  "encoding": "base64",
  "outputFormat": "data-uri",
  "customMime": "Auto-detected (e.g. image/png). Override only if needed."
}
  }
}

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).

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