Format Conversion

Logfmt to JSON Structured Log Bridge

Convert logfmt (key=value) to JSON or JSON back to logfmt, with quote escaping, number/boolean coercion, and duplicate-key handling.

text· Text resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/logfmt-to-json-structured-log-bridge' \
  -H 'Content-Type: application/json' \
  -d '{"input":"level=info msg=\"server started\" port=8080 ready=true count=42","direction":"logfmt-to-json","coerceNumbers":true,"coerceBooleans":true,"dropNullValues":false,"duplicateKeyMode":"warn","indent":2}'

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/logfmt-to-json-structured-log-bridge

Parameters

Name	Type	Required	Description
input	textarea	Yes	—
direction	select	Yes	—
coerceNumbers	checkbox	No	—
coerceBooleans	checkbox	No	—
dropNullValues	checkbox	No	—

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-logfmt-to-json-structured-log-bridge": {
      "name": "logfmt-to-json-structured-log-bridge",
      "description": "Convert logfmt (key=value) to JSON or JSON back to logfmt, with quote escaping, number/boolean coercion, and duplicate-key handling.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=logfmt-to-json-structured-log-bridge",
      "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": "logfmt-to-json-structured-log-bridge",
    "arguments": {
  "input": "level=info msg=\"server started\" port=8080 ready=true count=42",
  "direction": "logfmt-to-json",
  "coerceNumbers": true,
  "coerceBooleans": true,
  "dropNullValues": false,
  "duplicateKeyMode": "warn",
  "indent": 2
}
  }
}

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).

Browse tools Open tool