Format Conversion
Hex to String Converter
Convert text to and from hexadecimal strings with flexible spacing, prefix (0x/\x/U+), and case options
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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/hex-to-string' \
-H 'Content-Type: application/json' \
-d '{"inputText":"Enter text or hex string (e.g. 48 65 6c 6c 6f)...","operation":"encode","encoding":"utf-8","prefix":"none","case":"lower","separator":"space"}'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/hex-to-stringParameters
| Name | Type | Required | Description |
|---|---|---|---|
| inputText | textarea | Yes | — |
| operation | select | Yes | — |
| encoding | select | No | — |
| prefix | select | No | — |
| case | select | No | — |
| separator |
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-hex-to-string": {
"name": "hex-to-string",
"description": "Convert text to and from hexadecimal strings with flexible spacing, prefix (0x/\\x/U+), and case options",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=hex-to-string",
"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": "hex-to-string",
"arguments": {
"inputText": "Enter text or hex string (e.g. 48 65 6c 6c 6f)...",
"operation": "encode",
"encoding": "utf-8",
"prefix": "none",
"case": "lower",
"separator": "space"
}
}
}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]